Frymaster/Dean. H50/ Computers 2-1 Master Jet 3-1 Electric Fryers 4-1 Filtration 5-1 Dean Equipment 6-1 UHC 7-1 Sinbad 8-1 HLZ 9-1

Size: px
Start display at page:

Download "Frymaster/Dean. H50/ Computers 2-1 Master Jet 3-1 Electric Fryers 4-1 Filtration 5-1 Dean Equipment 6-1 UHC 7-1 Sinbad 8-1 HLZ 9-1"

Transcription

1 xtechnical REFERENCE MANUAL Frymaster/Dean H50/5 1-1 Computers -1 Master Jet 3-1 Electric Fryers 4-1 Filtration 5-1 Dean Equipment 6-1 UHC 7-1 Sinbad 8-1 HLZ 9-1 Vertical Toaster 10-1 Cookers 11-1 Charts, Tables 1-1 Frymaster/Dean Technical Service Frymaster LLC 8700 Line Ave. Shreveport, LA /

2 H50/5 High-Efficiency Fryers Model Number Fryer Configurations Serial Numbers/Rating Plates Physical Description Components Heat Transfer Frypots Burners Troubleshooting 1-1

3 H50/5 The first step in servicing an H50/5 fryer is identifying Number of split the unit, vats: its components and its configuration. Use the following diagrams to find useful informaton. Filtration: FP - FootPrint FM - Filter Magic MJ - Non-Filter Standard Fryer Model Number Number of fryers: No number - 1 fryer - fryers 3-3 fryers 4-4 fryers - 1 split vat 4 - split vats 6-3 split vats 8-4 split vats Controller: Computer FP H 50 - L BL C SC H - High Efficiency Type of fryer Location of split vats: L - left side R - right side MD - center Basket Lift Stainless steel components: SC - All stainless cabinet SD - stainless doors, painted cabinet McDonald's Fryer Model Number Filtration: M - McDonald's BI - McDonald's with built-in filtration. Number of fryers: No number - 1 fryer - fryers 3-3 fryers 4-4 fryers M H 5 - L Number of split vats: - 1 split vat 4 - split vats 6-3 split vats 8-4 split vats Computer C SD H - High Efficiency Type of fryer Location of split vats: L - left side R - right side MD - center Stainless components: Stainless steel components SD - All stainless cabinet 1-

4 H50/5 The configuration of the fryer is revealed in the model number. BI H 3 5-4LR C SD McDonald's unit with filtration FP H MD C SC Non-McDonald's unit with filtration 1-3

5 H50/5 MH5-4 CSD FPH50-RCSC McDonald's unit FPH50-CSC Frymaster unit BIH5-LCSD Frymaster unit McDonald's unit FMH350-L CSC Filter 1-4

6 H50/5 Serial numbers reveal the fryer s age. Serial Numbers Year Fryer was built Production Sequence Number 87 A Month Fryer was built A - January D - April L - December Engineering Suffix Code Year Fryer was built Family model FM 0054 Month Fryer was built 01 - January 04 - April 1 - December Production Sequence The rating plate is an essential source of technical information on a fryer. 1-5

7 H50/5 Physical Description Production of the HE or High-Efficiency fryer series began in The series was designed to save energy while providing the high-production capacity that customers demand. Capacity pounds cooking oil or shortening BTU Rating 80,000 (40,000 per side on split pots) Production 80 pounds of frozen french fries per hour Gas Requirements Gas Pressure Gas line size for a single or a battery of fryers must have a minimum of 1-inch ID gas connection. Incoming supply should be at least 11/ Minimum Incoming: Nat: 6 LP: 11 Maximum incoming: Nat: 14 LP 14 Manifold (Burner): Nat: 3 LP:

8 H50/5 H50 Components Top cap Computer controller Ignition modules 1-pin test points Relay sockets 15-pin wiring block Plenum Combustion fan Orifice Gas-valve pressure tap Gas valve Square drain Gas enrichment tube Sight glass 1-7

9 H50/5 European Community (CE) H5 fryer The gas valve and combustion blower are different on fryers exported to CE markets. These fryers also carry an air-prover switch. This is a view in a CE fryer on the assembly line. The valves are shown with the covers removed. The prover switches are not yet attached to the frame of the fryer. The air-prover switch (above) ensures the blower is working before the gas valve opens. The blower (right) has a different air-adjustment valve than its US counterpart. The CE gas valve (right) shown with the cover removed. 1-8

10 H50/5 Frypot Serial Number Placement In the fall of 1995, the frypot serial number was moved to its present location. It is etched inside the frypot. A flashlight held at a sharp angle is useful in finding and reading the number. The frypot serial number is located inside the frypot on the front wall. Earlier frypot serial numbers were affixed to the drain pipe (below) or to a brace attached between the drains (above) on split vats. Warranty claims on failed frypots must be accompanied by the actual serial number from the frypot interior. A hole saw should be used to remove the number. The saw that is sold by Frymaster must be tempered by cutting mild steel before it is used on stainless. 1-9

11 H50/5 Exhaust Gas Heat Transfer Burner Combustion Air Flow Blower The high-efficiency design reduces gas consumption by 43 percent. This is accomplished with the unique design of the frypot and combustion chamber. Heat transfer is accomplished in three ways: 1. Radiational (Infrared). Conduction (Direct Contact) 3. Convection (Heated Air) 1-10

12 H50/5 New combustion housing material is shown bent over insulation to seal the burner more efficiently. Care should be taken not to over torque nuts on frypots made of 439 stainless. The material, which tolerates expansion and contraction better than the earlier material, can be torn if nuts are over tightened or drains are forcefully jerked into alignment. Changes to the design of the combustion chamber insulation and housing were introduced in September of 001. The improvements provide a better seal for the burner and eliminate the need for furnace cement in factory assembly and in field rebuilds of frypots. In the summer of 001, a new metal was introduced for the H50/5 frypots, 439 stainless steel. The new material is much more tolerant of the contraction and expansion associated with externally heated frypots. The new material is expected to minimize problems associated with leaks at weld points. The new material is not tolerant of jerking motions used to align drain nipples or excessive tightening of nuts on any studs, front or back. The new material is readily identified with a magnet, which will stick to one of the new frypots. When installing a frypot made of the new material: Apply only steady even pressure when aligning drain nipples. Do not jerk on extensions used to align drains. Burner rails should not strike the fryer cabinet during the installation. Nuts on frypot studs should be snug, not over tightened. One turn past hand-tight is sufficient torque. 1-11

13 H50/5 Frypot Inspection Like production frypots, service frypots are inspected for weld integrity and leaks. However, the service pots are not connected to a gas supply and tested for combustion leaks. The following steps are required after installing a replacement frypot or anytime the combustion chamber insulation is disturbed: 1. Fill the frypot with oil and turn the fryer on. Turn off or bypass the melt cycle. Run the burner for 10 minutes.. Inspect the burner flame. The color and intensity should be equal on both sides. 3. Use an inspection mirror to check for leaks, which will appear as fog on the mirror surface. This type of leak is not detectable with a visual check. 4. If a leak is detected, tighten all the lower insulation retainer nuts, allow the fryer to run for five additional minutes and repeat steps two and three. 5. If the leak persists, use a rubber hammer and a small block of wood to tap the corners of the lower combustion chamber insulation retainers. Then repeat steps 3 and 4. Repeat this process until the leak is eliminated. A mirror can be used to check for leaks around the burner. A mallet and a short piece of wood are useful to tap corners of the combustion chamber to ensure a solid seal. 1-1

14 H50/5 Burners Air Flow Natural/LP Gas Reverse-Air Burner The reverse-air burner was introduced in The new design included a reversing tube, which forced the gas and air mixture toward the ignitor. This design produces a faster, smoother ignition The burners installed at the factory are specific to the gas to be used. The burners for natural gas (at right) have yellow radiants and are side-specific, there is a left and right burner. There is only one gas inlet. 1-13

15 H50/5 The service-part propane burner has two gas inlets (top right), which allows it to be mounted on either side of the fryer. The burner, which is readily identified by its gray radiants, will also work in a natural gas fryer. 1-14

16 H50/5 The radiants of the burner will glow blue at startup. After 5-30 seconds, a bright orange glow (right) should appear. If the burner remains blue, it is an indication of an improper gas/air mixture. The burner must have an air-tight fit to heat efficiently. Tubular insulation (left) is wrapped around the burner and carefully worked into the burner (above) rails to ensure a good seal. 1-15

17 H50/5 Gas Valves for the H50/5 Series The H50/5 series fryer has used Honeywell and Robertshaw gas valves. Honeywell gas valves were introduced into the Frymaster H50 Series (non-mcdonald s) fryers, in October, 199. Beginning with the introduction of the Footprint III design in May, 1995, the Honeywell valve was incorporated in the McDonald s H5 Series fryer system. Robertshaw gas valves with delay were used in units with slower blower motors and non-reverse air burners manufactured from 1984 to September, The delay valves incorporated a slow opening device, which delayed the gas flow by approximately seconds. Testing Gas Valves The resistance across the contacts for the coils of the Honeywell valve should be ohms on the diode setting. The resistance across the coil on the Robertshaw valve should be 7-75 ohms. The resistance on the safety coil should be 750-1,000 ohms on the diode setting. 1-16

18 H50/5 The Honeywell CE gas valve (above) was introduced in August of '99. The unit has a wiring harness, which rectifies 4 VAC to 4 VDC. It will accommodate propane and natural gas. An embossed arrow (right) indicates the direction of the gas flow through the valve. Igniters Flame sensor Enrichment tube Spark rod An igniter is placed into a frypot combustion chamber with the insulating gasket held in place. H50/5 Igniter The condition of the igniter and its installation are critical factors in the efficient operation of an H50/5 fryer. Ignition Modules The ignition module performs five important functions : 1. Produces high voltage for spark. Flame sensing 3. Provides 4V to gas valve 4. Provides the Alarm Circuit (4V) to the computer. 5. Provides fuse protection for 4V circuit. Fused-equipped ignition module for H50/5 fryer. 1-17

19 H50/5 Micro-Amps An AC signal from the module is grounded when there is sufficient flame at the igniter. This flow of electricity is measurable as microamps. If the module doesn t sense sufficient microamps, it will lock out, which kills power to the gas valve. The optimal is between.5 and 3.5 microamps Ignition Failure Ignition failure occurs when the ignition module fails to sense a flame within a prescribed period. The module looks for the flow of current, which starts when the flame ignites. Without a flame, the module locks out, closing the gas valve. A burner will produce some mircoamps even in less than ideal conditions. Here an unsealed burner is producing 1.8 microamps. The module then sends 4 VAC through the interface board alarm circuit to the controller/computer. Solid-state controllers indicate ignition failure by illuminating the heat and trouble lights simultaneously. Computer Magic III and III.5 controls display HELP; M100B and M000 computers display Ignition Failure. Microamps are measurable by placing a multimeter capable of measuring microamps (not milliamps) in series with the white sensing wire on the ignition module. A reading between.5 and 3.5 microamps should be seen after 1 minute of ignition. 1-18

20 H50/5 Ignition failure can be caused by any of the following: 1. Absence of flame. Poor flame quality 3. Defective sensing wire or connection 4. Defective module Out to Gas Valve To Alarm 5 V + Inside the Ignition Module Coil 5. Defective ignitor The lack of sufficient microamps is often attributable to GND HV TD poorly maintained blower or improper gas pressure. Ignition Wire Flame Sensor The air flow produced by the blower is easily adjusted. A vane on the blower should be open to approximately 1 ½. The vent on the blower for CE fryers is different from the unit used on domestic fryers. The blowers on H50/5 fryers are not universal. There is a left and right unit. The motor s location on the housing indicates the blower s placement The opening should be opened to 1-1/" for optimum air flow.

21 H50/5 Cleaning Blower Motors The cleanness of the blower has a direct effect on the fryer s ability to produce microamps. The blower should be cleaned at least twice a year. The motor is easily removed from the fryer and disassembled. The motor must be protected from water when the squirrel-cage fan is cleaned. Both the fan and the housing must be thoroughly cleaned. All the components should be dried before reassembly and remounting on the fryer. The blower motor and fan are easily removed from the fryer. With the blower cleaned and remounted, the microamp output of the fryer should be rechecked. The air openings on the blower should be adjusted until the fryer produces microamps operation. The fan and motor are removed from the blower housing. after one minute of The fan motor (above) must be protected from water during the cleaning. A degreaser should be sprayed on the fan and the fan housing to remove all the material sticking to the fan blades. Both the housing and the fan (right) should be thoroughly rinsed. 1-0

22 H50/5 Microamp Glitches The lack of sufficient microamps is often attributable to: Dirty flame sensor rod Inaccurately aligned igniters Poor electrical connections The flame sensor can be cleaned with a Scotch Brite pad. Placing aluminum tubes (left) on igniters provides a visual cue to properly align them. Placing washers on the frypot s studs (below) ensures a flat surface for the inner combustion chamber components to be tightened against. 1-1 The use of too many washers can force the igniters away from the burners

23 H50/5 Electrical Connections Electrical connections on the igniter should be regularly checked. Ensure a high-quality 18-ga. wire is used for the flame-sensing circuit. The wire should be copper with a ¼" tinned brass terminal. Ensure the igniter has a good ground. Inspect igniters to ensure proper operation. Ensure all connections on the igniter are tight and clean. Delayed Ignition A delayed ignition is most often described as popping. It is caused when the gas and air mixture fails to ignite immediately. Causes include: Cracked igniter or ignition wire Defective combustion fan assembly Burned or pitted contacts in the heat relay Dirty blower motor Incorrect or fluctuating gas pressure Defective ignition module Inadequate make-up air A dirty or incorrectly adjusted blower can affect ignition. Heat damage to controller or ignition modules A heat-damaged ignition module will often lead to popping. The clear covering of a heat relay (an operating relay is shown here) will be clouded if the contacts are pitted or burned. 1-

24 H50/5 Finding the Cause of Popping Incorrect blower adjustment Air leaks in the combustion chamber or plenum gaskets Check blower motor for cleanliness Check burner throat gaskets for leaks Check heat relay Check gas valve pressure for: Smooth regulation under varying loads Ensure vent tube is clean and clear of debris Check for delayed ignition Turn gas valve off and remove igniter Attach high-voltage lead to igniter and check for hot spark Check igniter ceramics for cracks Check for heat loss Examine front and back insulation Examine burner rains for cracks, holes Replace defective top rails Replace frypot if bottom rail or studs are leaking Probes Frymaster s solid-state controllers utilize a temperature probe rather than a thermostat. The probe s resistance changes as the temperature changes. The controls recognize the resistance changes and react accordingly. Testing Probes The ridge on the left bottom corner is adjacent to the number 1 pin. As the probe temperature increases by 1 F, the resistance increases at a positive coefficient of ohms. A probe resistance/temperature chart is provided in the Charts & Tables sectiion. To check the performance of a temperature probe, the probe s reading should be compared to a measurement taken directly against the probe with an external thermometer or pyrometer. Probe resistance can be checked from the 15-pin computer plug. The probe circuits are found by counting pin locations on the plug. The number 1 position is always marked by an adjacent ridge. (See photo and diagram at right.) The positions are counted from bottom to top with the lower numbers always on the same row as the number one pin If the probe resistance exceeds the tolerance levels, below 1000? or above 1950?, the controls will indicate the problem as follows: The pins on a 15-pin computer plug numbered. Counting starts at the ridge. 1-3

25 H50/5 Solid-State Controller: Instant Trouble Light with no other lights on full vat. On split vats, the trouble light will stay on with the controller turned off. Computer Magic III: Prob M100B (McDonald s computer): Probe Failure A defective probe will cause inaccurate temperature measurements. If the temperature, as measured by the probe, is more than 5 F/.8 C off, the probe should be replaced. Temperature probes cannot be calibrated. A temperature probe. If you suspect a defective probe, follow these steps to isolate the problem: Use a pyrometer or thermometer to check the temperature of the oil. Take the reading within a few inches of the frypot probe. Check the resistance of the probe at the controller or computer. Convert the resistance reading to Celsius or Fahrenheit with a conversion chart in Chapter 13. The readings should be within 5 F/.8 C. If the reading is off, measure the resistance at the red and white wires that emerge from the probe. If that reading is in synch with the frypot s temperature, assume the problem is in the probe circuit. Inspect for loose or frayed connections. Wire nuts in the circuit can affect the readings. If the resistance at the probe is the same as that displayed on the controller, the problem is probably with the probe itself. 1-4

26 H50/5 High-limit thermostat The high-limit prevents the fryer from dangerously overheating. The high-limit acts as a normally closed switch, which opens when exposed to temperatures above 45 to 450 F. The hi-limit automatically resets when the oil temperature drops below 350 F. A special socket with a cutout to accommodate wiring is necessary when installing a probe or hi-limit. 1-5

27 H50/5 Interface Boards The board at left was introduced in the summer of 99 and featured removable relays, a single fuse and LEDs arrayed around the board. IMPORTANT: * Disconnect 15-pin harness from the computer or controller before testing probe circuit. Test Meter Setting Pin & Pin Results 1 VAC Power 50 VAC Scale 1 of J3 or J 3 of J3 or J VAC Power RT 50 VAC 8 of J3 Ground -8 4 VAC Power LT 50 VAC 8 of J1 Ground VAC Power 50 VAC 11 of J3 Ground VAC to blower 50 VAC 1 of J3 Ground VAC Power RT Hilimit 4 VAC Power LT Hilimit 50 VAC 9 of J3 Ground VAC 9 of J1 Ground -8 *Probe Resistance RT R x 1000 Ohms of J3 or 13 of J 6 of J3 or 14 of J *Probe Resistance LT R x 1000 Ohms of J1 or 14 of J 6 of J1 of 15 of J Hi-limit continuity- RT R x 1 Ohms 9 of J3 Wire 13C on gas valve Hi-limit continuity- LT R x 1 Ohms 9 of J1 Wire 1C on gas valve * Probe resistance charts can be found in Section 13. See chart See chart

28 H50/5 Test Points J1 Test Points (Split Vat, left side) 1 4 volt Pin 8 to ground Hi-limit Pin 9 to gas valve wire 1C 3 Probe Pin to Pin 6 Heat Relays J3 Test Points (Full and Split Vat, right side) 1 1volt Pin 1 to Pin 3 4 volt Pin 8 to ground 3 Hi-limit Pin 9 to gas valve wire, 13C 4 Probe Pin to Pin V in Pin 11 to ground 6 10V to blower Pin 1 to ground Heat relays operate on 1 volts DC from the computer or controller. The relays are dual-post, dual-throw and switch both the 4 VAC to the ignition/gas circuit and 10 VAC to the combustion fan motor. The relays are removable, which allows inspection and testing. Transformers The transformers convert line voltage to 1 volts for use by the computer and 4 volts used in the ignition system. Not used Line VAC from J3 Pin VAC from Pin 1 1 VDC (-) Coil Voltage Heat Relay Socket Not used 4 VAC from Pin 8 of J3 4 VAC Out to PWR 1 VDC (+) Coil Voltage An H350 transformer box with dual-tap transformers. 1-7

29 H50/5 The 4-Volt Circuit 4-Volt Transformer Pin 8 - J3 LED 3 These charts show the flow of electricity through the circuitry of an HE gas fryer in normal operation. All components and wiring connections are shown. 4-Volt Transformer Right Heat Relay LED 4 PWR Fuse Right Ignition Module V1S LED PWR Fuse Left Ignition Module VS LED 5 Pin 9 J3 High Limit Pin 8 - J1 Left Heat Relay LED PWR Fuse Left Ignition Module VD LED 1 Pin 9 J1 High Limit Pin 8 - J3 LED 3 Right Heat Relay LED 4 PWR Fuse Right Ignition Module V1D LED 5 Pin 9 J3 High Limit Safety Drain Switch Safety Drain Switch Safety Drain Switch Gas Valve Left Gas Valve Right Gas Valve 1-8

30 H50/5 H50/H5 Full-Vat HE* *Shown with optional air switch used on CE and Japanese units. Line Voltage Transformer Box * Air Switch LED 6/ 1VAC 1VAC 4VAC LED 3/ 4VAC Blower Controller Heat Relay LED 4/ PWR LED / PWR LED 5/ Right Module Left Module GV High Limit Drain Valve Safety Switch H50/H5 Dual-Vat HE* *Shown with optional air switch used on CE and Japanese units. Gas Valve *Air Safety Switch CE and Japanese Units LED 7/ J1-8 J3-8 Air Line Voltage 1VAC 4VAC Line Voltage Transformer Box * Air Switch 1VAC 4VAC Heat Relay LED 6/ 1VAC LED 3/ 4VAC Heat Relay LED / PWR Controller Blower LED 4/ PWR LED 1/ GV High Limits LED 5/ GV Left Module Gas Valve Drain Safety Switches Gas Valve 1-9

31 H50/5 H50 SERIES FULL-VAT BEFORE JUNE 1996 & AFTER JULY 1999 LINE VOLTAGE DRAIN SAFETY SWITCH ONLY ON UNITS WITH BUILT-IN FILTRATION AIR SWITCH ONLY ON CE AND SOME EXPORT UNITS 1 OPTIONAL AIR SWITCH 1V 4V DRAIN SAFETY SWITCH 9 GV HI LIMIT 1 BLOWER 6 TEMP PROBE J3 1V 4V R-GV LEFT IGNITION MODULE LED 6 LED 3 LED 5 R-HEAT RIGHT IGNITION MODULE TD HV ALARM 5V+ GND VALVE BNR GND L PWR ALARM L HEAT LED AIR LED not applicable to fryers manufactured before 6/96 AIR K3 HEAT RELAY F1 F1 Fuse not applicable to fryers manufactured before 6/96 LED 4 R PWR V1S ALARM ALARM 5V+ GND BNR GND VALVE TD HV VS 1/50 LEFT IGNITOR A 47K 1K J SD RIGHT IGNITOR POWER ON/ OFF TROUBLE T M HEAT LINE VOLTAGE 1 VDC SOUND DEVICE CIRCUIT 4 VAC 1 VAC PROBE CIRCUIT 1-30

32 DRAIN SAFETY SWITCH ONLY ON UNITS WITH BUILT-IN FILTRATION AIR SWITCH ONLY ON CE AND SOME EXPORT UNITS LEFT IGNITOR LEFT IGNITION MODULE TD HV ALARM 5V+ GND VALVE BNR GND H50 SERIES DUAL-VAT BEFORE JUNE 1996 & AFTER JULY 1999 J1 L PWR VD ALARM L-HEAT LED HEAT T M TEMP PROBE LINE VOLTAGE K1 HEAT RELAY A /50 47K 1K TROUBLE A 8 GV HIGH LIMIT 9 L-GV LED 1 DRAIN SAFETY SWITCH POWER ON/OFF V 3 1V LED 6 DRAIN SAFETY SWITCH 9 HIGH LIMIT 4 GV R-GV LED 5 4V 8 8 OPTIONAL AIR SWITCH 4 K HEAT RELAY 9 11 BLOWER R-HEAT LED 4 TEMP PROBE 6 J3 R PWR ALARM J POWER 4V LED 3 AIR AIR LED not applicable to fryers manufactured before 6/96 ON/OFF 1/50 47K 1K TROUBLE A A 1 F1 T M HEAT V1D F1 Fuse not applicable to fryers manufactured before 6/96 SD ALARM RIGHT IGNITION MODULE 5V+ GND VALVE BNR GND TD HV LINE VOLTAGE 1 VDC 4 VAC 1 VAC PROBE CIRCUIT RIGHT IGNITOR SOUND DEVICE CIRCUIT H50/5 1-31

33 H50/5 Tips on Troubleshooting Ignition Failure Take a multi-meter and manometer on every call. Have the customer describe the specific complaint. Are clues to the problem inherent in the complaint: happens during lunch hour, etc.) Eliminate components that are obviously working. Operate the fryer and verify the problem. Verify a flame is in the chamber when the fryer calls for re-ignition. If no flame is present: Check for power to the gas valve during the restart. If flame is present in the chamber during call for ignition: Check for proper gas pressure (3 WC) under high-volume conditions (lunch time). Check microamp level (minimum 1.5 microamps for each igniter s flame sensor. Determine which side (left or right) is causing the failure. Use the LEDs on the interface to determine faulty side Evaluate microamps. Optimal reading is between microamps on each side. Check ignition system using two microamp meters. Conduct closer inspection of igniter alignment and positioning. Balance microamp readings with blower air intake. Visually inspect burner surfaces. Adjust plenum gates as necessary. Reading LEDs Full vat LEDs and 5 go off simultaneously 1. Insufficient flame current (microamps) on right side a. Improper gas-air mix b. Misaligned ignitor c. Defective ignitor. Defective right-side ignition module 3. Defective right-side flame sensing wire LED 5 goes out, then four seconds later LED goes out 1. Insufficient flame current (microamps) on left side a. Improper gas-air mix b. Misaligned ignitor c. Defective ignitor. Defective left-side ignition module 1. Defective left-side flame-sensing wire Split vat 1. Insufficient flame current (microamps) a. Improper gas-air mix b. Misaligned igniter c. Defective igniter. Defective ignition module 3. Defective flame-sensing wire 1-3

34 H50/5 Check flues for restriction. Check for air leaks at rails Check for poor insulation Ensure orifices are of the same size and clear of debris. Check modules for evidence of overheating. Check fryer for: Heat leaks or heat loss at front of pot. Poor exhaust performance Heavy buildup of grease on filters. Grease dripping down back of fryer wall Replace spade terminals on both igniter sensors If no cause found, drain tank and repeat checks 1-7 with water in the frypot. If ignition lockout continues, conduct Frymaster s intermittent alarm procedure outlined in Bulletin

35 H50/5 McDonald s Hood System Filtered Air Primary Air Cooling Air Gravity Blade Seal Angle or Z Bar Standoff Channel The design of the McDonald s hood system (non-canopy design) requires several sealing components to work properly and to prevent overheating of fryer components. Proper installation and adjustment of the fryer and the hood ensures adequate airflow. Six types of air flow to be controlled: Filtered air: This air travels across the heated shortening, goes through the grease filters and up the exhaust stack. It is important for the grease filters to be cleaned regularly to maintain proper airflow. Primary air: This air passes through an air collar, goes into the burner and is mixed with gas for combustion. Secondary air: Air that leaves the combustion chamber and flows into the flue. Extraneous air: Air that leaks in around the fryer. Component cooling air: This air flows from the front of the fryer, across the components, through the openings in the back of the fryer cabinet and mixes with the secondary air. Make-up air: This flow is supplied by the HVAC system and compensates for the air exhausted by the hood. It ensures adequate air for the burner. 1-34

36 H50/5 McDonald s Interlock The McDonald s version of the HE gas fryer includes an interlock circuit for the exhaust hood. When the fryer is turned on, a relay in the fryer activates the hood system exhaust fan. In some restaurants, the interlock feature is not used. The hood is turned on manually every day. McDonald s fryers manufactured after 1977 include a pre-wired interlock cord set. The plug is a five-prong twist lock (NEMA L1-0P). McDonald s plug. Depending on the restaurant wiring, the terminal block or the plug may require rewiring to work properly. See diagram below for details. Interlock Relay Fryer controls 1 3 N 10 VAC Out to Fan 10 VAC 1-35

37 H50/5 New construction interlock buildings New construction, non-interlock buildings Old construction, non-interlock buildings 1977 or later plans, 4-wire "J" box at rear of equipment Add jumper 1977 or later plans, 5-wire "J" box at rear of equipment 1977 or later plans, "J" Box at rear of equipment Prior to 7/15/77 plans, "J" Box at rear of equipment Add jumper 1 3 N 1 3 N 1 3 N 1 3 N Black Red Green White Black Red Blue White Green Black White Black White Green Green This is a H35 transformer box, which is identical to the H350 except for a latch relay used by McDonald s hood system. The latching relay included in the McDonald s transformer box operates the hood when the fryer is switched on. 1-36

38 H50/5 What s New Dual-Spark Module 4-volt transformer Pin 8 of J3 LED 3/4V R/H Heat Relay LED 4/ R-PWR A new spark module, which provides spark for both sides of a full-vat fryer, was introduced in January of 001. The new unit, which has no fuse in the 4V circuit, introduced the need for a fused power supply line between the interface board s PWR terminal and the module s 4VAC terminal. A new interface board was introduced at the same time with an additional fuse for the 4VAC circuit. The new spark module is shown above. The adapter necessary to connect the ignition wire to the new module s spade terminal is shown below. PWR Ignition module V1S Late summer of 00, a new production interface board (Page 1-38) was introduced for the H50 fryer. On this board, circuits necessary for the old two-spark module fryers were eliminated. LED / L-PWR PWR VS LED 5/ R-GV Pin 9 of J3 Hi-limit Gas valve The board was introduced in May of 000 with two fuses to accommodate the new dual spark module. It also features removable fuses. 1-37

39 H50/5 A new spark module and the two-fuse interface board are shown (at left) in the control box behind the computer of a full-vat H50 fryer. A depopulated board was introduced to production H50 units in late summer of 00. Circuitry needed for a second spark module was removed. 1-38

40 H50/5 Simplified Wiring Diagram for Dual-Spark Module 1V Incoming Supply AIR SW 4V DRAIN SW GV HIGH- LIMIT BLOWER TEMP PROBE J3 L PWR 6 3 AIR LED N/A BEFORE 6/96 AIR K3 5 F1 F1 FUSE N/A BEFORE 6/96 4 R PWR V1S DUAL-IGNITION MODULE ALARM 5V GND VALVE TD BNR VS ALARM GND HV SOUND DEVICE IGNITORS J SENSING WIRE POWER ON/OFF TROUBLE HEAT Full-Vat Gas With Dual-Spark Module 1-39

41 Computers CMIII.5 M000 M100B Sensitivity Recovery Connections -1

42 Computers Computer Magic III.5 The flagship Frymaster cooking computer has undergone a number of recent changes, beginning with the introduction of the CMIII.5, essentially a refinement of the standard CMIII. More improvements followed, including a structural redesign. The computer maintains a visual similarity to the early unit and is a direct replacement for earlier CMIIIs. The first changes, introduced in December 99, made field reconfiguration of the computer far easier. By entering a programming code, the computer can be adjusted to operate gas or electric, full or split pot fryers. The structural redesign introduced tactile switches, which produce a more satisfying click when engaged than the earlier membrane switches. The tactile-switch equipped CMIII.5 is structurally incompatible with its predecessors. With its introduction, CMIII computer could no longer be returned for core credit. The older computers cannot be rebuilt to accommodate tactile switches or the other refinements. Likewise, replacement membrane switches for the earlier units are no longer available. Set-up Mode for the CMIII.5 The CMIII.5 can be field reprogrammed, which allows it to be installed on gas or electric, full or split pot fryers. Follow these steps to reprogram the CMIII.5. With the computer display blank, lower the computer panel and ground pin 8 on the computer s 15-pin plug either to pin or the chassis of the fryer. Press the checkmark and enter The Frymaster CMIII.5 computer has undergone several changes. -

43 Computers GAS will be displayed (Figure 1) on the left side of the computer. Remove the grounding pin. Use the numbered keys to change the fuel source. 0 = Electric; 1 = Gas. Press the check mark. Figure 1 SPLt is displayed (Figure ). 0= Full 1= Split Use the numbered keys to make a selection. Press check mark. Figure CNtr is displayed (Figure 3). This is the choice for controlling or non-controlling. 1= Controlling 0= Non-Controlling. Note: In almost all cases, choose controlling. In non-controlling mode, the computer acts essentially as a timer. Press the check mark. ACYC is displayed (Figure 4). This allows the melt cycle to be bypassed. Figure 3 1= Melt cycle can be bypassed. 0= Melt cycle is locked in. Figure 4 Press the check mark. *C on appears in the left display; a number appears in the right (Figure 5). This is the ON cycle of the melt cycle, the amount of time the fryer will call for heat while raising the oil temperature to 180 F (8 C). It differs in gas, electric, high-efficiency and open burner fryers. See the table below. Use the numbered keys to enter the proper ON time (in seconds). Press the check mark. CoFF appears in the display; a number appears in the right. This is the OFF cycle of the melt Figure 5 Figure 6-3

44 Computers cycle, the amount of time the heating unit will be off as the fryer raises the oil temperature to 180 F (8 C). See the table below. Use the numbered keys to enter the proper OFF time (in seconds). *Note: The melt cycle choice will not appear in computers designed for triac operation. Press the check mark The displays go blank. The computer is ready for installation. Programming the CMIII.5 for Cooking CM III/III.5 Melt Cycles HE gas Dual-vat HE gas Electric Export HE MJ47, MJ45 & CF EPRI Tube fryer KFC, HE gas 6 on, 4 off 6 on, 4 off 3 on, 1 off 8 on, 4 off 3 on, 4 off Pulse to setpoint 8 on, 4 off 6 on, 4 off The computer is off; display is blank (Figure 1). Press checkmark; CodE is displayed. Enter 1650 with numbered keys. Figure 1 SP-r appears (Figure ). The setpoint is entered at this step, if needed, with the numbered keys. NOTE: SP-l appears if the computer is configured for a split pot. Press checkmark to advance. Figure SELP is displayed (Figure 3). Choose a numbered product button for programming at this step. Press checkmark to advance. SENS is displayed (Figure 4). This is sensitivity, which is explained on page -13 in this chapter. Choose a number between 0-9, with 0 essentially turning the feature off. Press checkmark to advance. Figure 3 Figure 4 COOC is displayed (Figure 5). Enter the cooktime for the product. Press checkmark. Figure 5-4

45 Computers SH- appears (Figure 6). With the numbered keys, enter the seconds into the cook cycle the product will need to be shaken. Figure 6 Press checkmark. Hd- appears (Figure 7). With the numbered keys, enter the minutes after the completion of the cook cycle the product can be held before discarding. Press checkmark. SELP reappears and another product button can be programmed (Figure 8). Follow the steps just outlined. Press temperature button to exit programming (Figure 9). Figure 7 Figure 8 Useful Codes Recovery: 165 Cooking Programming: 1650 Fahrenheit to Celsius: 1658 Set-up mode: 1656 Constant Temp Display: 165L Hot Figure F/4 C 45 F/18 C Split Vat Full Vat Hot Hi 410 F/10 C French Fry Setpoint { Lo{ 370 F/188 C 350 F/177 C 330 F/165 C 180 F/8 C Cycle Here's a look at the CMIII.5's display at various temperatures. -5

46 Computers M000 Frymaster introduced the M000, which replaced the M100B, in the fall of 001 for the domestic McDonald s market. The unit was introduced internationally in the summer of 00. The computer offers many additional features, including 10 product buttons, which store cooking cycles for separate products. The computer also has memory capable of storing 39 menu items. The computer can be programmed for special items. The 100B became obsolete with the introduction of the M000 and is no longer available. A kit is necessary to fit the new computer to fryers originally equipped with a 100B. The body of the new computer is deeper than the M100B and the new unit also requires a speaker. A new bezel, a speaker and other adapters to make the new computer compatible with gas or electric fryers are included in the kit. Programming the M000. The computer is blank (Figure 1). Press checkmark; CODE is displayed. Enter 33 with numbered keys. Loading will appear in the left display, numbers in the right. The factory default settings are entered. The computer goes blank and then displays OFF when the process is complete. Programming for Menu, Language Choice Display shows OFF. Press checkmark. CODE is displayed. Enter Figure 1 Volume is displayed on left, high or low on right (Figure ). Use the temperature bulb button to toggle between choices. Press checkmark to lock in choice. Figure *Language is displayed on left, language choices on the right. -6

47 Computers Press temperature bulb button to toggle between choices. Press checkmark to lock in choice. Menu is displayed (Figure 3) Press temperature bulb button to toggle between USA and Non-USA. Lock in choice with checkmark button. The screen goes blank and then displays OFF. *Early domestic versions of the computer do not have a language choice option. Set-up Mode Computer displays OFF. Press checkmark. CODE is displayed. Enter GAS is displayed (Figure 4). Press temperature bulb button to toggle between YES and NO. Press checkmark to lock in choice. Split is displayed (Figure 5). Press temperature bulb button to toggle between YES and NO. Press checkmark to lock in choice. The screen goes blank then displays OFF. Figure 3 Figure 4 Figure 5 NOTE: With pin 8 grounded, three more steps appear: Mlt-On, Mlt-Off and Net ID. All can be adjusted with the numbered keys and locked in with the checkmark. Entering Menu Items Computer displays OFF. Press checkmark. CODE is displayed. Enter FR FRIES is displayed on the left; right is blank. Figure 6 Press a button under the right display. YES is displayed (Figure 6). In splitpot fryers, the right side is controlled by the button; the left is controlled by the 1 button. NOTE: This step establishes the setpoint for the fryer, which for fries is 335 F. Press checkmark to lock in choice and advance to the next step. Figure 7-7

48 Computers Duty is displayed (Figure 7). Toggle between Auto and Manual alarm shutoff with the temp bulb. Set the time into the cook cycle for the first shake alarm with the numbered keys. Lock in choices with the checkmark. Duty is displayed. Steps are as outlined above. Press checkmark to lock in choice. Remove is displayed. This is the cooktime. Adjust, if necessary, with numbered keys. Alarm and Duty are adjusted as previously described. Press checkmark to lock in choice. Qual is displayed. (Figure 9). This is the hold time. Adjust, if necessary, with numbered keys and temp bulb. Press checkmark to advance. Set-Temp is displayed (Figure 10). Adjust, if necessary, with numbered keys. Press checkmark to advance. Fr Fries and YES are displayed. Press the left side to advance to the next factory-loaded menu item. Press OFF button to lock in choices. Figure 8 Figure 9 Figure 10 Useful Codes Recovery: 165 Cooking Programming: 1650 Default Reset: 33 Language choice*, sound level: 1655 Fahrenheit to Celsius: 1658 Set-up mode: 1656 *Early domestic versions of the computer do not have a language choice option. -8

49 Computers Modes of Operation Dedicated Product name is displayed; one-button operation Non-dedicated Dashed lines appear; two-button operation Dedicated Operation Figure 11 Press button under displayed product; cook cycle is launched. (Figure 11) Non-dedicated Operation Dashed lines appear (Figure 1). Press product button for chosen product. Product name appears on fryer side with appropriate setpoint. Quickly press button under displayed item to launch cook cycle. Chevrons (<<<>>>) appear if the setpoint is not correct. The display returns to dashed lines upon completion of cook cycle. Figure 1 Hot 410 F/10 C French Fry Setpoint { Fr Fries 335 F/168 C Low Temp { 315 F/157 C 180 F/8 c Here's a look at the M000's display at various temperatures. -9

50 Computers M100B The M100B was the standard McDonald s computer from September 96 until it was replaced by the M000. There are still a great many of them in the field. What follows is a broad overview of the computer. McDonald s M100B Computer McDonald s 100B Controls ON/OFF, left side in split pot. ON/OFF, right side in split pot. Advances menu items on left side. When lit, frypot is heating Advances menu items on right side. Displays oil temperature Setup Mode In the off position, push and release these buttons simultaneously. Function choices In the setup mode, the computer allows the operator to OK functions such as boilout, constant display of product choice or alternating display of product/temperature, and fuel choice. -10

51 Computers 100B Controls Programming McDonald s 100B Display menu items in cooking mode, programming options when programming. Start timers In the off position, push and release these buttons simultaneously. Programming menu items In the program mode, the computer can have pre-programmed selections turned on or off and test items can be entered using a test menu selection. The right or left buttons toggle the yes/no response. Adding Item Advances menu choices Toggles yes or no for menu item Pressing the arrow key advances a series of menu choices. Pressing the 1 button turns the menu item ON (YES) or OFF (NO) Controlling oil temperature Temperature control Here the unit is calling for heat while cooking a batch of fries. Introducing frozen fries into the frypot drops the oil temperature, and the controller calls for additional heat. Here the unit is below setpoint and calling for heat. -11

52 Computers Healthy fryer The computer takes a vital measure of the fryer s health each day. The time required for the unit to heat oil from 70 o to 30 o is recorded; the time is displayed by pressing the hourglass button. Failure indicators A problem in the probe circuit will produce a probe failure display. Ignition failures produce an ignition failure display. Rec Lock Rec Lock is often caused by adding cool oil while the fryer is between 70 and 30 F in its initial warm up. The computer monitors the rise in oil temperature after reaching 70 F. If a 50 F rise in oil temperature does not occur within minutes, 35 seconds (:35), the computer will shut down the system. Below is the procedure for clearing Rec Lock. Clearing REC-LOCK STEP 1 Computer in REC LOCK The first step in clearing REC LOCK is to turn the computer OFF by pressing the switch. STEP STEP 3 Enter the programming mode by pressing and releasing 1, and switches simultaneously. The computer will display its model number and then FR FRIES YES. Press the switch. REC LOCK is cleared. -1

53 Computers What is Sensitivity? Sensitivity or stretch time is a programmable feature, patented by Frymaster, that increases or decreases the cook time based on the temperature drop in the cooking oil when the cold product is placed in the vat. For instance, a single order of french fries will not lower the temperature of the oil as much as four orders cooked simultaneously. However, the fryer will produce the same results from both batches. This is achieved by stretching the cook time to negate the cooling effect the large batch of fries has on the oil. The cook time for a single order may be stretched only slightly or not at all. 350 F 330 F 350 F Oil temperature drops and recovers quickly with small loads; no additional time is necessary. TIME 3:30 cook cycle of single order of fries: Actual cooktime: 3:30 The degree to which the fryer reacts to the changing temperature of the oil is programmable: there is a sensitivity setting available for each product button on the CMIII-equipped H50s. The sensitivity is set to a McDonald s-specified figure in the M000 and the M100B. The sensitivity for each button can be set between 0 and 9, with 0 essentially disabling the feature. A 9 provides the highest sensitivity or most pronounced change. The correct sensitivity for a product is based on its density, the setpoint and customer requirements. What is Recovery? The recovery check is a diagnostic tool, which measures the elapsed time required for the fryer to raise the temperature of the oil from 75 F (135 C) to 35 F (16 C). The fryer takes this measure any time the oil drops below the low-end benchmark of 50 F (11 C). *McDonald s fryers clock the rise between 70 F (13 C) and 30 F (160 C). A standard HE gas fryer should achieve the 50-degree rise in :5. Programming in the McDonald s unit allows it :35 to reach the goal. Electric fryers recover in 1:40. The McDonald s unit, however, will lock out if it fails the test. The display will show REC LOC. The result of the most recent recovery check is displayed when you enter the code 165 on the CMIII. 330 F 350 F 180 F TIME 3:30 cook cycle of multiple orders of fries: Actual cooktime: 3:45 Oil temperature drops farther and recovers more slowly with heavy loads, requiring additional time to achieve optimal cooking results. The sensitivity feature of the comptuer dials in the extra time. When the oil temperature dips below a benchmark 50 F*, the computer performs a recovery check as the oil heats: it clocks the time required to raise the temperature from 75 F to 35 F. -13

54 Computers Computer Connections All controllers, computer or analog, connect to the fryer through a 15-pin plug. The controllers differ only slightly due to the shorter melt-cycles on electric units. On the harness, pin one is identifiable by a raised corner on the plug. The pin numbers are also embossed next to each opening on the plug. The electrical and gas controllers are not interchangeable, due to the differences in melt-cycle times. The pin placement and function are identical on gas and electric units. Here s a look at each pin and the function it controls: The numbering of the pins begins with the ridge on the corner of the plug. Pin Type Function 1 Input Power (1VAC) to controls Input Chassis ground for control 3 Input Power (1VAC) to controls 4 Output 1VDC Ground to (RH) heat relay coil when controls call for heat 5 Output VR relay power (1 VDC (+) to heat relay, latch relay (electric units only) and hood interlock (McDonald s) 6 Output 1VDC Ground to (LH) heat relay 7 Output 1VDC to coil of right basket lift relay 8 Input Analog ground for controls 9 Output 1VDC to coil of left basket lift relay 10 Input Receives output from right alarm terminal of module (gas) or right latch relay (electric) 11 Output Power (5VDC Pulse) to sound device 1 Input Receives output from left alarm terminal of module (gas) or left latch relay (electric) 13 Input Probe circuit, right 14 Input Probe circuit, common for left and right 15 Input Probe circuit. left -14

55 Master Jet Atmospheric Gas Fryers General Information GF14/40 J1C MJ45 MJ47 3-1

56 Master Jet Atmospheric Fryer Series The Master Jet is the earliest Frymaster design. The burner heats the frypot directly, unlike the sealed burners on the high efficiency fryers. The Master Jet fryers have a distinctive sound, which prompted the name. The open burner design includes a wide range of fryers: the economy GF series, a tabletop model and more advanced units with computer controls, filtration and basket lifts. Master Jet Operation In all Master Jet fryers, the flame originates from orifices in a U-shaped manifold, which encircles the frypot. An electro-mechanical millivolt or 4VAC valve regulates gas flow. Most Master Jet series fryers have pilot ignition systems. Only the MJ47 is available with an electronic ignition. The pilot system consists of the pilot orifice, pilot hood and a thermopile. The pilot heats the thermopile, which produces the millivolts necessary to power the control circuit and light the burner. The millivolt output passes through a normally closed high-limit switch and energizes the gas valve pilot coil, opening the pilot valve. If the pilot is extinguished, voltage is lost in the circuit and pilot valve closes. GF14 thermocouple and burner. If the fryer overheats, the high-limit switch opens, killing the voltage flow to the pilot valve. 3-

57 Master Jet GF14/GF40 The GF14 and GF40 fryers are simple millivolt units, differentiated by the GF40 s larger capacity, ceramic burner targets and two orifices for each target. There are no options. All units are thermostat controlled, without basket lifts or filtration. GF14/GF40 Model GF14 GF40 BTU 100,000 10,000 Nat Pressure Pro Pressure 4 WC 3.5 WC 10 WC 8.5 WC Capacity lbs lbs GF14 GF40 Thermostat High limit Gas valve The view behind the doors of the GF14 and the GF40 is nearly identical. These fryers, except for the thermostat, have the same components as the other units in the line. Drain valve GF14 Cabinet interior GF40 cabinet interior 3-3

58 Master Jet The Sunne thermostat (left and above) is used on both fryers. A setscrew in the shaft of the knob is turned to calibrate the fryer: CW decreases temperature; CCW increases temperature. Thermostat High limit GF14/40 frypot components GF14 burner with metal targets. GF14 rear target. The GF14 burner (shown above) doesn t have ceramic targets. The unit uses metal tabs over single orifices. The fryer also uses a rear target that s attached to the back of the fryer (left). The GF40 uses ceramic target over dual orifices, similar to the MJ35 burner shown on page

59 Master Jet J1C The J1C is a countertop fryer similar to the MJ35 except in capacity and options. The small unit cannot be equipped with basket lifts or filtration. JIC BTU 45,000 Nat. Pressure Pro Pressure Capacity 4 WC 11 WC 15-0 lbs J1C cabinet interior J1C tabletop fryer 3-5

60 Master Jet MJ35 The MJ35 is a millivolt fryer. It is available with basket lifts and Filter Magic filtration. The thermostat on the unit can be mounted behind a hinged front panel or on a fixed front panel. In the latter configuration, a shaft connects the thermostat knob to the Fenwal thermostat mounted in the frypot. MJ35 BTU 110,000 Nat Pressure Pro Pressure Capacity 4 WC 9 WC lbs Thermostat Hi-limit Gas Valve Behind the access panel of a MJ

61 Master Jet Gas pressure adjustment CW: Increase CCW: Decrease Vent tube connection Honeywell valves (left) replaced Robertshaw units in 199. The Honeywell valve has ½ input and outputs and can regulate pressure up to ½ PSI. The valves operate on approximately 500MV, which is produced by a pilot generator. No electrical input is needed. Pilot Adjustment CCW: Increase CW: Decrease Honeywell millivolt gas valve The Fenwal thermostat (left), which extends into the frypot, is sensitive to onedegree changes. It has a range of 75 F F (4-88 C). A full rotation of the shaft covers 140 F (60 C). Excessive rotation will damage the thermostat. Frypot size determines the length of the thermostat. The J1C and MJ35 fryers take a 3-inch thermostat; the MJ45, MJ47, MJCF and MJCFE fryers take a 4-inch thermostat. A Fenwal thermostat. Opens: 45 F ±1 F/18 C ±7 C Hi-limits (left) are heat-sensitive, normally closed switches, which open at preset temperatures, cutting voltage to the pilot coil of the gas valve. The switch will reset when the oil in the frypot drops below 350 F (176 C). Closes: 350 F/176 C Hi-limit for MJ35 3-7

62 Master Jet Ceramic targets Pilot burner Pressure tap The components of a MJ35 burner assembly. Orifices Master Jet series burner orifices Master Jet series fryers use flat brass burner orifices. Each is stamped with a drill size or the metric equivalent. The size of the orifice opening depends on gas type, BTU rating and elevation. Check the opening with a drill bit or gauge to ensure the proper orifice is in place. 3-8

63 Master Jet Pilot Assembly The pilot assembly is made up of: orifice, hood, thermopile or pilot generator and a mounting bracket. The assembly has two functions: heat the thermopile and light the burner. The pilot flame should be 1.5 tall, blue and surround the thermopile. Thermopile The thermopile (left and below) contains thin strips of dissimilar metal, which, when heated, emit a tiny amount of electricity. This one is rated at 750mV. Because there is so little electricity in the circuit, any additional resistance, such as a wire nut, can cause problems. Do not use wire nuts in a millivolt circuit. 500mV: Open circuit (Not connected to valve) 00mV: Closed circuit (Connected to valve) 3-9

64 Master Jet Targets/Deflectors Targets on Master Jet fryers, with the exception of the GF14, consist of a metal bracket and a ceramic target. The burner orifice holds the bracket/target assembly in place. Placement is critical. Rear targets require 1-inch clearance from the frypot, and side targets require ¾-inch clearance. A rear target on a MJ35 burner assembly. 1-inch (rear) ¾-inch (side) Frypot Alignment is critical to the proper function of the target assemblies. Improperly aligned targets can cause the following: Delayed ignition Improper combustion mixture Reduced efficiency 3-10

65 Master Jet Gas Pressure An inspection of the burner can reveal gas pressure problems. The burner flame should ride two inches above the orifice and exhibit a rich blue color. Altitude and gas type affect gas pressure. Flame rides two inches above the orifice in this picture taken on a demonstration cart. Millivolt Schematics Pilot Magnet Safety Circuit Safety Coil 10.6 ohms 3 PP TH Hi-Limit Pilot Magnet Operating Thermostat Main Valve Operating Circuit 3 PP TH Operator Coil. ohms Thermopile 1 PP TH 4 Thermopile 1 PP TH 4 Pilot Magnet Minimum millivolts to energize coil: 164mV. Minimum millivolts to energize coil: 158mV 3-11

66 Master Jet MJCF MJCF BTU 150,000 Nat Pressure Pro Pressure Capacity 3.5 WC 10 WC lbs. The MJCF is a large capacity fryer used principally for heavily breaded items such as chicken and fish. The MJCFE model uses a 10/4V (0-40/4V export) control system to accommodate accessories such as melt cycle control. The MJCFEC uses the same power system controlled by a CMIII computer. The unit is also available with a Filter Magic system. The flexible shaft is visible on a thermostat controlled MJCF with the front panel dropped. Cabinet interior of MJCFE. 3-1

67 Master Jet MJ45 FM45ECSD Options for the MJ45 include basket lifts, computer control, melt-cycle timer and Filter Magic. MJ45 BTU 1,000 Nat Pressure 3.5 WC Pro Pressure Capacity 8.5 WC lbs. 3-13

68 Master Jet Melt cycle switch ON/OFF The thermostat s adjustment range is F ( C) Heat indicator light The melt cycle control panel on the MJ45. ON/OFF switch Heat indicator light Provides 4VAC through the thermostat to the main coil of the gas valve. Illuminates when the thermostat s contacts close and the burner assembly lights. Melt cycle In the ON position, the fryer stays in the melt cycle: 3 seconds on/4 seconds off, until the switch is turned off. The oil temperature has no effect on the melt cycle mode. Solid-state melt cycle timer. Hi-limit thermostat Fenwal operating thermostat Control box interior of an MJ45 fryer. 3-14

69 Master Jet Melt Cycle Timers Solid-state board Mechanical timer Solid-state melt-cycle boards were introduced in 1998, replacing mechanical timers, which are no longer available. The new timer is a direct replacement and is available in a kit, which includes a mounting plate, relevant wires and instructions. When the melt cycle switch is thrown, the 4VAC is switched on and off by a relay on the solid-state board. This relay is in series with the thermostat. The board turns the burners on for 3 seconds and off for 4 seconds until the switch is turned off. Cabinet interior of Filter Magic equipped 45 series fryer. 3-15

70 Master Jet Main burner pressure adjustment 10 Ohms TH/TR Pilot pressure adjustment TH TR A Honeywell gas valve used on the MJ Ohms Valve schematic Operating Thermostat ON/OFF Switch 4VAC Transformer Line Voltage Gas Valve Main Valve Magnet Thermopile Pilot Magnet Pilot High-Limit The Honeywell valve used in the MJ45 fryer operates off two voltages. The pilot coil is controlled by millivolts generated by the thermopile. The main coil operates off of 4VAC, which is controlled by the thermostat. 3-16

71 Master Jet Melt Cycle circuit 13 HI-LIMIT T'STAT Master Jet MJ45 with Standard Thermostat 10VAC or 40VAC 1 ON/OFF SWITCH 4 VAC 1 SAFETY DRAIN OPTION HEATING C SOUND DEVICE 1 NC NO 4 16 M VAC Melt MELT CYCLE SWITCH/ LIGHT Valve Solid-state melt cycle board DISCONNECT PLUG OPERATING T'STAT PILOT GENERATOR GAS VALVE

72 Master Jet 1VAC transformer Operates computer/controller 4VAC transformer Operates gas valve s main coil Filter pump micro switch nterface board Handle Operates oil return valve Key components in the controller box on the FM45EC. MJ45 Interface Board GV D4 AL 4V COMP D1 R1 The interface board provides the link between the controller/computer and the fryer s individual components without requiring excessive wiring, and allows the controller to execute commands from a central point. 4VAC C1 COMP AC 3 J Heat BL BL K3 K K1 SOUND 1 1 J1 AC COM AC HOT MADE IN U.S.A. COM HOT 3-18

73 Master Jet Diagnostic Lights on 45 Interface Board Light GV AL 4V COMP Indication 4 VAC to gas valve Used if pressure switch is installed 4VAC from transformer 1VAC to computer Lights across the top of the board and test points on the right side provide diagnostic tools for troubleshooting the fryer. Diagnostic Test Points Test Meter Setting Pins Results 1VAC to controller 50VAC 1-3 of J VAC power 50VAC 4VAC terminals -8 4VAC to valve 50VAC 6 and ground on J1-8 10VAC power 50VAC 7-1 of J Probe resistance* RX1000 ohms -3 of J1 ** * Disconnect 15-pin harness from controller before testing probe circuit; **see probe resistance chart for readings. 3-19

74 Master Jet MJ45 4-volt circuit with interface board Pin 1 Pin 7 COM HOT 4V Transformer 4V Interface Board K3 LED 4V J1-6 LED GV Pin Terminal Block Drain Safety Switch, Optional 19 0 Gas Valve Thermopile Hi-limit 3-0

75 Master Jet MJ45 with interface board Optional pressure switch Normally open Safety drain option See inset Gas valve Hi-limit Pilot generator Operational coil C NC NO Safety drain option Line Voltage Probe J1 4 VAC 1 VAC 10VAC D4 C Gas valve relay D3 10VAC D1 4 VAC Interface Board 1 VAC D J HEAT POWER Computer TROUBLE T ON/ OFF M 3-1

76 Master Jet MJ47 The MJ47 offers the most options in the open burner fryers. The unit is available in full or split-pot configurations with electronic ignition or standing a standing pilot. The Footprint is the only filter option. MJ47 Full Split BTU 1,000 63,500 Nat. Pressure Pro. Pressure Capacity lbs 5 lbs FP47RECSC FP: Footprint MJ: Nonfilter Number of fryers Number of Split Vats : 1 split 4: splits 6: 3 splits 8: 4 splits C: Computer M: Melt Cycle Fryer Model FP 47 L BL C SC Location of Split Vat L: Left side R: Right side MD: Center Basket Lifts SC: Complete stainless SD: Stainless door, painted cabinet 3-

77 Master Jet Removing two screws from the computer bezel, reveals the control box, which contains the interface board and transformers. The control box on a computer -controlled 47 with standing pilot ignition system. The control box at left is in a fryer with a standing pilot and configured for split pots and basket lifts. A high efficiency interface board is used on MJ47s with standing pilots. The interface board on a computer-equipped 47 configured for basket lifts and split pots: MJ47-EBLC. 3-3

78 Master Jet Interface Board SOUND 1 GND P16 R9 D17 P17 D3 P18 R5 J 1 D6 D6 R9 P15 R6 GND R14 R7 D7 3 MADE IN USA P1 J R C4 D1 R1 R8 R15 D14 D0 R18 D4 R7 R1 D18 D19 R0 1V AIR J3 R11 GND VD P4 P1 D1 D16 R16 GV D K1 D11 R13 F1 Blower Motor Amp D5 GV P10 GND P3 P7 PWR K4 V1D P5 R3 R3 P8 AD D1 P6 R D3 C P11 PWR AS VS D P R8 R17 D5 PWR Z1 R19 4V R6 R R D4 C1 P9 PWR ALR V1S GND C3 D10 GND K K3 P14 Interface Board LED Diagnostic Lights LED Indication 6 1VAC to computer 3 4VAC from transformer 4 4VAC from K3 relay 5 4VAC from drain switch Frequently Used Test Points for Interface Board Test Meter Setting Pins Results 1VAC to controller 50VAC 1-3 of JC VAC to interface board 50VAC 8 or J3 to gnd. -8 4VAC to gas valve 50VAC 9 of J3 to gnd. -8 Probe resistance Rx1000 ohms -6 of J3* ** * Disconnect 15-pin harness prior to this test; **use probe resistance chart. 3-4

79 Master Jet Two 4-volt valves are visible (left) in the cabinet of this 47 series fryer, indicating it is a split pot. Standing-pilot equipped 47s use the same valve as the 45 series fryer. A schematic for this valve is in the 45 section on page The 47-series burner (below) incorporates standoffs (seen above targets) to align and position the ceramic targets around the frypot. The rear target (not shown) is mounted on the fryer frame. There is no adjustment on the rear target. Cabinet interior view of a 47 fryer. The burner also features J- shaped manifolds, which allow it to work in a split-pot configuration. A 47 burner with electronic ignition installed. Note the standoffs above the ceramic flame targets. 3-5

80 Master Jet The Honeywell valve used in the electronic ignitionequipped 47 series fryers must sense a pilot before allowing the main valve to open. A schematic of the valve and the resistive values of the coils is shown below. Set meter to diode scale to measure resistance in valve. MV MV/PV PV This 4-volt Honeywell valve is used on 47 series fryers with electronic ignition Controller box for 47 fryer with electronic ignition. The 47-series controller box (shown above) is configured for electronic ignition. The ignition module is connected to an ignition assembly, which replaces the pilot assembly. An electronic spark lights the pilot, and a flame sensor verifies the presence of the pilot flame by measuring a flow of microamps through the flame. If the pilot fails to light or is extinguished, current to the module is cut, preventing the main valve from opening. 3-6

81 Master Jet The interface board provides a link between the controller/computer and the fryer s components without requiring excessive wiring and allows the controller to execute commands from a central point. The electronic-ignition interface board contains two types of relays. Heat relays, K1, K3, operate at 1VDC output from the controller. They switch 4VAC to the main gas valve when the unit calls for heat. The K relay in the middle of the board switches 4VAC to the pilot circuit of the valve when the unit is powered up, which allows the pilot to remain continuously lit. Interface Board LED Diagnostic Lights LED AL MV PV CMP 4V PWR Indication Power module lockout 4VAC to main gas valve 4VAC to pilot valve 1VAC from transformer 4VAC from transformer 4VAC to ignition module 3-7

82 Master Jet Frequently Used Test Points for Interface Board Test Meter Setting Pins Results 1VAC to controller 50VAC 1-3 of J VAC to module 4VAC to hi-limit 4VAC to main valve Hi-limit continuity Probe resistance 50VAC 50VAC 50VAC Rx1 ohm Rx1000 ohms * Disconnect 15-pin harness prior to this test; **use probe resistance chart. 4 of J5 and gnd 1 of J4 and gnd 8 of J4 and gnd 1 of J4 and N.O. micro switch 10 and 11 of J4* ** 3-8

83 Master Jet 47 with standing pilot Line Voltage 4 VAC J3 Pin 8 LED 3 K3 Relay Interface Board PWR VID LED 5 J3 Pin 9 Gas Valve Thermopile Hi-limit 3-9

84 Master Jet 47 with standing pilot LINE VOLTAGE Gas Valve Thermopile Hi-limit 1V 4V TEMP PROBE J3 1V 4V LED 6 LED 3 LED 5 R-HEAT R PWR K3 HEAT RELAY LED 4 V1D ALARM 1/50 See Drain Switch Option 47K A 1K J SD HEAT POWER ON/ OFF TROUBLE T M GRD PWR NO C NC VID ALR VIS 3-30

85 Master Jet 47 with electronic ignition Pin 4 J4 LED 4V K Relay Interface Board PWR Pin 4 J5 5V on ignition module Valve terminal on module Interface Board Pin J5 Pin 1 J5 Hi-limit N.O. drain switch Common drain switch P7 J4 PV Gas Valve K3 Relay PV Interface Board MV P8 J4 MV Gas Valve 3-31

86 Master Jet 3-3 POWER ON/ OFF TROUBLE HEAT T J SD M TEMP PROBE HI LIMIT TD HV MV MV/PV PV Alarm 5V GRD J3 J5 J4 NO C 4V PWR PV MV AL CMP 4V/ AC 1V/ AC Valve 47 with electronic ignition

87 Electric Fryers H14, H17 & H General Information Physical Description Components Element Ratings Electrical Theory Troubleshooting 4-1

88 Electric Fryers Electric Units manufactured before 1/97 Optional CMIII Computer Controller Latch Relay Heat Relay 1 VAC Transformer 4 VAC Transformer Interface Board Controller Box Latch Contactor 3-Phase Terminal Block Terminal Block Contactor Box Heat (Mercury) Contactor 4-

89 Electric Fryers Electric Units manufactured after 1/97* (/96 for C.E. markets) 1 VAC Transformer 4 VAC Transformer Interface Board Controller Box Delta Terminal Block Fuses C1 Terminal C Terminal Heat (Mercury) Contactor Latching Contactor Contactor Box (1/97 3/98) * Contactor box illustrated was manufactured from January, 1997 through March,

90 Electric Fryers Electric Units manufactured after 4/98 Delta Terminal Block Heat Contactor (Mercury) Latching Contactor C1 Terminal C Terminal Fuse Holder/ Fuse With Mercury Heat Contactor Heat Sink Solid State Relays Latching Contactor With Solid-State Relays 4-4

91 Electric Fryers H14, H17 and H Electric Fryers The Frymaster H-Electric series began production in The design change included an improved heating element design and incorporated a solid-state control circuit. Several changes have occurred in design since initial production release and will be addressed in this section. Physical Description Capacity: kw Rating: Production: Options: pounds cooking oil or shortening. Available in 14, 17 and -kilowatt models. 70 lbs. of froze n french-fries per hour for H14; 80 lbs. for H17; 100 lbs. for H. Computer controls, built-in filtration, automatic basketlifts and EPRI system. Electrical Requirements: Amperage Draws (by model and voltage) Voltage H14 H17 H 08V V V /380V /415V /400V

92 Electric Fryers Components Contactors Latching Contactors used in the H-Electric series fryers are manufactured by Furnas. The mechanical design is used due to the low frequency of actuation. In most cases, the latching contactor is activated at the beginning of the workday, during the filtering process, and deactivated at closing. The 4 VAC coil of the latching contactor is wired in series with the latch relay contacts. Latching Contactor Heating Contactors used in the H-Electric series fryers are manufactured by Durakool. The mercury contact design withstands the high frequency of actuations required in the heating circuit. The 4 VAC coil of the heating contactor is wired in series with the heat relay contacts. ` Heating (Mercury) Contactor 4-6

93 Electric Fryers Solid State Relays Solid state relays replace the mercury (heat) contactor in conventional contactor boxes. The latching contactor is still present, and stays energized unless the high-limit or drain switch is activated. The computer then controls the solid state relays, which control current through the heating elements to maintain oil temperature setpoint. The computer sends a small DC voltage via the interface board to the relays. Solid state relays have no moving parts and they react faster than conventional mercury contactors. Solid-state Relays Elements The H.E. Electric series fryers introduced a change from round to ribbon style elements. The ribbon element design increases the heating surface and makes the elements easier to service and clean. Currently, Watlow and Chromalox are suppliers for these heating elements. Although the element wires are factory marked for quick identification, never assume the terminals are correctly marked. Always check each element wire to ensure proper wiring Element Wiring Sequence 4-7

94 Electric Fryers Element Ratings Each element listed in the chart performs at the stated wattage when the specified voltage is applied. However, it is not unusual for the power source to vary by as much as 10%. The change in supply will affect the element performance. In order to achieve the stated wattage, the fryer s heating elements must be matched to the incoming line voltage. If fryers are moved or line voltage changes significantly, the fryers must be reconfigured to get the expected wattage. Watts Voltage Ohm Tolerance V Ohms V Ohms V Ohms V Ohms V Ohms V Ohms V Ohms V Ohms V Ohms Export and Other V Ohms V Ohms V Ohms V Ohms Elements must be changed and transformers must be corrected to ensure the fryer operates properly. Failure to properly reconfigure a fryer to match voltage different than it was manufactured to operate on will void the equipment warranty. Use the formulas below to determine the element wattage and amperage change when connected to a voltage other than specified. L1 Three Phase Wattage L L3 To compute the New Wattage of an Element if a different voltage is applied, use the following formula: New Voltage [ Old Voltage] X kw Listed = New Wattage Rating L1 Three Phase Amperage L L3 To determine Three Phase Amperage, solve for Single Phase First Wattage Voltage = Single Phase Amps Then divide the Single Phase Amperage by 1.73 to determine Three Phase Amperage. Example: If 08V supply is applied to a 17 kw element rated for 40V, the calculation is as follows: 08V [ 40V ] = 1.77 kw X 17,000 Watts Example: 17,000W 40V = Amps 1.73 = Amps per Phase 4-8

95 Electric Fryers Temperature Probe Old Style (prior to 1/97) The same Temperature Probe used in the gas versions is used in the H-Electric series fryers. Originally, the probe was mounted in the front of the frypot. That mounting position caused problems, however, and the probe was relocated to the rear of the frypot. New Style Old-style Old-style Temperature Probe Probe Since 1/97 common electric fryers have been manufactured with the temperature probe mounted to the heating element. The temperature probe is secured to the element with a mounting bracket and screws. New-style Temperature Probe High-Limit Old Style (prior to 1/97) The high-limit on an electric fryer is a capillary design. This allows the sensing device to be mounted on the heating element. The sensing bulb must be installed properly using proper hardware. Improper installation and physical damage are the leading causes of failure. Old-style High-Limit Three safety benefits of the old-style design were protection of overheating from: 1. Boil-Out. Dry-Fire 3. Element Burn-off Sensing bulb properly installed. 4-9

96 Electric Fryers New Style Since January, 1997 common electric fryers have been manufactured with the high-limit mounted to the frypot wall, and the frypot coupling positioned closer to the side of the frypot. The high-limit is color coded for easy identification. See the following table for the color-code and part description: Color Code Part # Description Red 435 F- Used on kw, 17 kw DV, 14 kw DV. Black 45 F- Used on 17kW FV, 14 kw FV. Yellow 415 F- Used on all CE fryers. New-style high-limit location. Interface Board, Original H14, H17, H and MH14 Series The electric fryer interface board is similar to interface boards on the H.E. gas fryers. LED indicators aid the technician in troubleshooting, and the board acts as a common junction for the fryer s electrical components. B up B down B com LED 3 COM HT RELAY SD LED 5 LED 6 B up B down B com LED 4 COM HT RELAY HOT HOT Unlike the gas version, the electric board includes two additional relay sockets for the latching circuit. All the wire connections for this circuit are located on the front side of the board, with the exception of the probe leads. COM HI RELAY HOT HI LIMIT LED J COM HI RELAY HOT HI LIMIT 1V AC HOT 4V AC LED COM J LED 1 -- Fryer 4 VAC Power LED -- Fryer 1 VAC Power LED 3 -- Heating Relay Closed (Left / Dual-Vat) LED 4 -- Heating Relay Closed (Right) LED 5 -- Latch Relay Closed (Left / Dual-Vat) LED 6 -- Latch Relay Closed (Right) 4-10

97 Electric Fryers The following table provides 10 quick system checks that can be performed using a Volt/Ohm multimeter. The meter reading must agree with the values in the table. Test Meter Test Point & Test Point Results Setting 1 VAC Power 50 VAC Scale 1 VAC COM 1 VAC HOT 1 16 VAC 4 VAC Power 50 VAC Scale 4 VAC COM 4 VAC HOT 4 30 VAC *Probe Resistance - RT R X 1000 Ohms Pin 3 of J1 or Pin 13 of J Pin 6 of J1 or Pin 14 of J See Chart *Probe Resistance - LT R X 1000 Ohms Pin 1 of J1 or Pin 15 of J Pin 4 of J1 or Pin 14 of J See Chart High-Limit Continuity - RT R X 1 Ohms Rt. Hi-Limit Terminal, Top Rt. Hi-Limit Terminal, Bot. 0 Ohms High-Limit Continuity - LT R X 1 Ohms Lt. Hi-Limit Terminal, Top Lt. Hi-Limit Terminal, Bot. 0 Ohms Latch Contactor Coil - RT R X 1 Ohms Right HI Relay HOT Right HI Relay COM 3 10 Ohms Latch Contactor Coil - LT R X 1 Ohms Left HI Relay HOT Left HI Relay COM 3 10 Ohms Heat Contactor Coil - RT R X 1 Ohms Right HT Relay HOT Right HT Relay COM 18 5 Ohms Heat Contactor Coil - LT R X 1 Ohms Left HT Relay HOT Left HT Relay COM 18 5 Ohms * Disconnect the 15-pin harness from the computer or controller before testing the probe circuit. See Probe Resistance Chart in Section 1 for the correct resistance value. Two Versions of the Original Electric Interface Board The earliest versions (prior to 9/87) of the H.E. Electric frypot utilized a front-mounted probe. The probe location required 0-ohm resistance compensation in the probe circuit of the Interface Board. LED J1 LED Interface The current frypot design has the probe mounted in the rear of the frypot. Resistance compensation is not required, thus zero-ohm resistors bridge the circuit. LED J1 LED Interface

98 Electric Fryers Interface Board, New Style H14, H17, H and MH14 Series The most recent version [released 1/97 (1/96 CE)] of the Frymaster electric fryer series utilizes a redesigned interface board. The changes incorporate long life, sealed relays and relocated diagnostic LED s. Diagnostic LED's AL HI HTCMP 4V HT HI AL SOUND J3 J3 Computer Harness Jack C C6 Diagnostic LED Legend C1 C K1 K K3 K4 LH LATCH RELAY LH HEAT RELAY 1 J RH HEAT RELAY RH LATCH RELAY C3 1 1 J C4 CMP 4V HI HI HT HT AL AL 8indicates power from 1V transformer 8indicates power from 4V transformer 8(RH) indicates output (closed) from right latch relay 8(LH) indicates output (closed) from left latch relay 8(RH) indicates output from right heat relay 8(LH) indicates output from left heat relay 8(RH) indicates output (open) from right latch relay 8(LH) indicates output (open) from left latch relay J1 Test Points J Test Points Test Meter Pin & Pin Results Setting 1 VAC Power 50 VAC Scale 1 of J 3 of J 1 16 VAC 4 VAC Power 50 VAC Scale of J Chassis 4 30 VAC *Probe Resistance - RH R X 1000 Ohms 11 of J 1 of J See Chart *Probe Resistance - LH R X 1000 Ohms 3 of J1 of J1 See Chart High-Limit Continuity - RH R X 1 Ohms 7 of J 4 of J 0 Ohms High-Limit Continuity - LH R X 1 Ohms 4 of J1 7 of J1 0 Ohms Latch Contactor Coil - RH R X 1 Ohms 8 of J Chassis 3 10 Ohms Latch Contactor Coil - LH R X 1 Ohms 5 of J1 Chassis 3 10 Ohms Heat Contactor Coil - RH R X 1 Ohms 9 of J Chassis 18 5 Ohms Heat Contactor Coil - LH R X 1 Ohms 6 of J1 Chassis 18 5 Ohms * Disconnect the 15-pin harness from the computer or controller before testing the probe circuit. See Probe Resistance Chart in Section 1 for the correct resistance value. 4-1

99 Electric Fryers Wiring Diagrams Old- Style and Current Common Electric Note: The following diagrams have been simplified for easy diagnostic use. When servicing fryers in the field, always refer to the wiring diagram affixed to the fryer. 4-13

100 Electric Fryers INTERFACE BOARD H14/H17/H SERIES OLD STYLE FULL-VAT CONTROL CIRCUIT FUSES 3 PHASE POWER TERMINALS HIGH LIMIT TEMP PROBE L1 L L3 GND FIRE CUT-OFF 1V DRAIN SAFETY SWITCH 4V J1 3 1 LED LED 6 LED 1 K5 LATCH RELAY K6 HEAT RELAY LATCHING CONTACTOR 3 1C 1 LED 4 C SD HEATING CONTACTOR POWER ON HEAT LINE VOLTAGE 1 VDC T TROUBLE ON/OFF SOUND DEVICE CIRCUIT 4 VAC M COMPUTER/ CONTROLLER 1 VAC PROBE CIRCUIT 4-14

101 Electric Fryers 3 1 3C LATCHING CONTACTOR 3 1 4C HEATING CONTACTOR COMPUTER/ CONTROLLER K4 HEAT RELAY LED 3 J3 HEAT H14/H17/H SERIES OLD STYLE DUAL-VAT TEMP PROBE HIGH LIMIT HIGH LIMIT TEMP PROBE J1 DRAIN SAFETY SWITCH V DRAIN SAFETY SWITCH 4V 6 3 J1 LED 5 LED LED 1 K LATCH RELAY K5 LATCH RELAY LED 6 K6 HEAT RELAY LED T TROUBLE POWER ON POWER ON TROUBLE T HEAT M M 3 PHASE POWER TERMINALS L1 L L3 GND 3 1 1C LATCHING CONTACTOR 3 1 C J3 SD HEATING CONTACTOR LINE VOLTAGE 1 VDC SOUND DEVICE CIRCUIT 4 VAC 1 VAC PROBE CIRCUIT 4-15

102 Electric Fryers COMMON ELECTRIC H14/17/ SERIES (INCLUDING McDONALD'S ) FULL-VAT C1-1 C1-3 Applicable to McDonald's Units Only J FIRE CUT-OFF HOOD RELAY 1V HIGH LIMIT DRAIN SAFETY SWITCH 4V 6 TEMP PROBE 3 PHASE POWER TERMINALS J 7 C6 L1 L L3 GND 3 1 COMP 1 VDC 4V HI HI RELAY J-8 C1-8 1C LATCHING CONTACTOR K4 LATCH RELAY AL K3 HEAT RELAY INTERFACE BOARD 3 1 HT C C6-8 HT RELAY J-9 SD HEATING CONTACTOR J J3 POWER ON HEAT LINE VOLTAGE ON/OFF TROUBLE T M COMPUTER/ CONTROLLER 1 VDC SOUND DEVICE CIRCUIT 4 VAC 1 VAC PROBE CIRCUIT 4-16

103 Electric Fryers COMMON ELECTRIC H14/17/ SERIES (INCLUDING McDONALD'S) DUAL-VAT 3 Applicable to McDonald's Units Only HOOD RELAY J-10 CONTROL CIRCUIT J1 3 TEMP PROBE C1-1 C1-3 J4-1 J4-3 HIGH LIMIT DRAIN SAFETY SWITCH C C6 J1 J 1V HIGH LIMIT DRAIN SAFETY SWITCH 4V 4V FUSE 11 1 TEMP PROBE L1 L L3 3 PHASE POWER TERMINALS GND 3 1 4V 1 3C LATCHING CONTACTOR J1-5 HI COMP HI J-8 C1-8 1C LATCHING CONTACTOR 3 K HEAT RELAY AL K1 LATCH RELAY K4 LATCH RELAY AL K3 HEAT RELAY J C6-14 J1-6 4C HT J1-9 HT 1 C6-8 J-9 C SD J J3 COMPUTER/ CONTROLLER HEAT T M TROUBLE POWER ON POWER ON TROUBLE T M HEAT LINE VOLTAGE 1 VDC SOUND DEVICE CIRCUIT 4 VAC 1 VAC PROBE CIRCUIT 4-17

104 Electric Fryers COMMON ELECTRIC H14/H17/H SERIES- TRIAC FULL-VAT CONTROL CIRCUIT FUSES HIGH LIMIT TEMP PROBE L1 L L3 GND 3 PHASE POWER TERMINALS J FIRE CUT-OFF 1V DRAIN SAFETY SWITCH 4V 4V FUSE J C6 3 1 COMP 4V HI J-8 C1-8 1C LATCHING CONTACTOR K4 LATCH RELAY AL J-5 INTERFACE BOARD C1-11 J-9 C6-8 C6-9 C1-9 HT J J3 SD HEATING TRIACS C POWER ON HEAT LINE VOLTAGE 1 VDC T TROUBLE ON/OFF SOUND DEVICE CIRCUIT 4 VAC M COMPUTER/ CONTROLLER 1 VAC PROBE CIRCUIT 4-18

105 Electric Fryers COMMON ELECTRIC McDONALD'S H14 SERIES- FULL-VAT EXPORT WYE C1-1 C1-3 HIGH LIMIT TEMP PROBE 3 PHASE POWER TERMINALS L1 L L3 N GND J FIRE CUT-OFF HOOD RELAY 1V DRAIN SAFETY SWITCH 4V J 7 C6 3 1 COMP 1 VDC 4V HI HI RELAY J-8 C1-8 1C LATCHING CONTACTOR K4 LATCH RELAY AL K3 HEAT RELAY INTERFACE BOARD 3 1 HT J-9 J-5 J-6 HT RELAY SD C HEATING CONTACTOR LINE VOLTAGE 1 VDC SOUND DEVICE CIRCUIT 4 VAC J HEAT J3 TILT SWITCH 1 VAC PROBE CIRCUIT POWER ON ON/OFF TROUBLE T M NC BURN-OFF RELAY C NO Burn-off Relay option was discontinued on all McDonald's fryers manufactured after mid- 98, and is no longer required for use by McDonald's COMPUTER/CONTROLLER 4-19

106 Electric Fryers COMMON ELECTRIC McDONALD'S H14 SERIES- DUAL-VAT EXPORT WYE LINE VOLTAGE 1 VDC SOUND DEVICE CIRCUIT 4 VAC 1 VAC PROBE CIRCUIT 3 CONTROL CIRCUIT TEMP PROBE C1-1 C1-3 J4-1 J4-3 HIGH LIMIT DRAIN SAFETY SWITCH C C6 HOOD RELAY J J1 3 J1 J 1V HIGH LIMIT DRAIN SAFETY SWITCH 4V 4V FUSE TEMP PROBE 3 PHASE POWER TERMINALS N L1 L L3 GND 3 1 4V 1 3C LATCHING CONTACTOR J1-5 HI COMP HI J-8 1C LATCHING CONTACTOR 3 K HEAT RELAY AL K1 LATCH RELAY K4 LATCH RELAY AL K3 HEAT RELAY 3 1 J1-6 HT 4C HT J-9 1 J-5 SD C HEATING CONTACTOR J1-9 J J3 J-6 HEATING CONTACTOR HEAT HEAT TILT SWITCH T TROUBLE POWER ON POWER ON TROUBLE T TILT SWITCH NC BURN-OFF RELAY C NO M M NC BURN-OFF RELAY C NO COMPUTER/CONTROLLER Burn-off Relay option was discontinued on all McDonald's fryers manufactured after mid-98, and is no longer required for use by McDonald's 4-0

107 Electric Fryers Fryer Off Troubleshooting Press the ON/OFF Switch OFF CMP on Interface Board ON? NO 1. No Power applied to fryer power cord. Defective 1 volt transformer 3. Defective interface board (CMP) 4. Broken or improper wire connection YES 4 on Interface Board ON? NO 1. Defective 4 volt transformer. Defective interface board (4) 3. Broken or improper wire connection YES Is the AL LED illuminated? NO 1. Defective interface board YES Condition Normal 4-1

108 Electric Fryers Fryer Heating Oil- H14/H17/H Series Fryers Troubleshooting Turn the fryer ON and set the temperature at least 45 F above temperature of cooking oil. Heat light on (may cycle during melt) COMPUTER Alternating or constant LOW TEMP is displayed CONTROLLER Power Light ON YES NO COMPUTER (CMIII) 1. " _" displayed, indicates oil temperature is within 1 F (1 C) of setpoint. HI indicates oil temperature is 1 F (1 C) or higher than the setpoint 3. HOT indicates the oil temperature is higher than 410 F (10 C) [395 F (0 C)] for European Community H14 fryers 4. PROB indicates a problem in the temperature measuring circuit including probe 5. HELP indicates a latching problem 6. Defective computer 7. Broken or improper wire connection 8. Triac-Controlling Computer fryer - defective triacs ANALOG CONTROLLER 1. Trouble light indicates: a. Oil temperature is above the accepted range b. Problem in temperature measuring circuit including probe. Heat light and Trouble light on indicates a latching problem 3. Defective controller 4. Broken or improper wire connection DIGITAL CONTROLLER 1. HOT indicates the oil temperature is higher than the accepted range. PROB indicates a problem in the temperature measuring circuit including probe 3. HELP indicates a latching problem 4. Defective controller 5. Broken or improper wire connection 6. Triac Controlling Computer fryer - defective triacs Right HI LED is ON for Full-Vats? Both HI LED's ON for Dual-Vats NO 1. Open high limit. Open drain valve microswitch 3. Broken or defective wiring connection 4. Defective latching relay YES 4 Volts supplied to Latching Contactor and contactor closes? NO 1. Defective latching relay. Broken or improper wire connection 3. Defective interface board 4. Defective latching contactor YES Continued on next page 4-

109 Electric Fryers Continued from previous page As heat light illuminates, right HT LED comes on (both HT LED's light for DV)? NO 1. Defective latching relay. Broken or improper wire connection 3. Defective interface board 4. Defective latching contactor YES 4 VAC supplied to heat contactor and heating contactor closes? NO 1. Defective heating contactor. Broken or defective wiring connection 3. Defective interface board YES Elements heat and draw proper amps? NO 1. Defective heating contactor. Defective heating element 3. Broken or defective wiring connection 4. Improper wire connection YES Elements continue to heat and maintain proper temperature (will cycle during melt)? NO Unit stops heating with heat light on: - Defective or improperly installed high limit - Defective heating or latching contactor Unit heats until high limit trips without heat light on: - Defective heating element - Defective heating contactor - Improperly wired element Unit heats until high limit trips with heat light on: - Defective (shorted) probe - Defective computer/controller/timer YES Condition Normal 4-3

110 Electric Fryers Fryer Heating Oil- MH/BIH14 Series Fryers Troubleshooting Turn the fryer ON and set the temperature at least 45 F above temperature of cooking oil. Heat light on (may cycle during melt): COMPUTER Alternating or constant LOW TEMP is displayed. CONTROLLER Power Light ON. NO COMPUTER (M-100B) 1. Menu item displayed, indicates oil temperature is within 45 F of setpoint. HOT HI 1 indicates the oil temperature is higher than 410 F (10 C) [395 F (0 C)] for European Community H14 fryers 3. PROBE FAILURE indicates a problem in the temperature measuring circuit including probe 4. IGNITION FAILURE indicates a latching problem 5. Defective computer 6. Broken or improper wire connection CONTROLLER 1. Trouble light indicates: a. Oil temperature is above 410 F (10 C) b. Problem in temperature measuring circuit including probe. Heat light and trouble light on indicates a latching problem 3. Defective controller 4. Broken or improper wire connection YES Right HI LED is ON for Full-Vats? Both HI LED's ON for Dual-Vats? NO 1. Open high limit. Open drain valve microswitch 3. Broken or defective wiring connection 4. Defective latching relay YES 4 Volts supplied to latching contactor and contactor closes? NO 1. Defective latching relay. Broken or improper wire connection 3. Defective interface board 4. Defective latching contactor YES Continued on next page 4-4

111 Electric Fryers Continued from previous page As heat light illuminates, right HT LED comes on (both HT LED's light for DV)? NO 1. Defective latching relay. Broken or improper wire connection 3. Defective interface board 4. Defective latching contactor YES 4 VAC supplied to heat contactor and heating contactor closes? NO 1. Defective heating contactor. Broken or defective wiring connection 3. Defective interface board YES Elements heat and draw proper amps? NO 1. Defective heating contactor. Defective heating element 3. Broken or defective wiring connection 4. Improper wire connection YES Elements continue to heat and maintain proper temperature (will cycle during melt)? NO Unit stops heating with heat light on: - Defective or improperly installed high limit - Defective heating or latching contactor Unit heats until high limit trips without heat light on: - Defective heating element - Defective heating contactor - Improperly wired element Unit heats until high limit trips with heat light on: - Defective (shorted) probe - Defective computer/controller/timer YES Condition Normal 4-5

112 Electric Fryers High-Limit Failure [Old Style, manufactured before 1/97 (1/96 CE)] Proper installation of the capillary tube-style high-limit is critical to ensure the device functions properly. When operating properly, the device opens when oil temperature exceeds 45 F. If the high-limit is not connected to the heating elements, the elements are not protected against overheating, and the highlimit can lie in the frypot cold zone, allowing the cooking-area oil to rise above 45 F to 450 F. Properly installed high-limit old-style. If the high-limit is mounted too close to the heating element, the high-limit can open prematurely. Common-Electric Fryer Changes In current production Common-Electric fryers, the high-limit is mounted in the frypot. This design change has reduced high-limit failures. The high-limit is now installed into the frypot The temperature probe is mounted on the element and must be secured to the element support as shown in the photo to the right. The probe bracket keeps the probe in the optimum position for accurate temperature measurements and protects the probe from damage. and the probe is now on the element. 4-6

113 Electric Fryers Defective Contactor A contactor can fail in three ways: 1. Will not close.. Will not open. 3. Shorted coil. Improper Element Wiring Sticking Contactor The fryer elements actually contain three separate wires (one for each phase). Improper wiring connections will cause one or more of the following symptoms: 1. Fryer temperature creeps or rises very slowly.. Improper amperage draw. 3. Slow Recovery. Defective Element Elements that are shorted internally can cause several symptoms, similar to the problems associated with incorrect element wiring, An element that has two phases connecting internally will heat continuously, anytime the fryer is ON. Use a clip-on ampmeter on the element wires to determine which phases are shorted. This check should be performed when the unit is not calling for heat. When an element shorts to the chassis or element housing, the element will heat continuously when the fryer is turned on. An amp probe will identify which line is drawing current. Check when the fryer is not calling for heat Element wiring connections Normal Element Element with Phase to Phase short Element with Phase shorted to ground 4-7

114 Filtration Systems Filter Magic and FootPrint Filter Magic Filter Magic II Filter Magic II (Redesigned) FootPrint FootPrint II FootPrint III FootPrint III (Enhanced) Diagnostics Electrical Theory 5-1

115 Filtration Systems Filter Magic and FootPrint Through the years, Frymaster has changed many aspects of deep fat frying. In the late 1970's, Frymaster developed the first built-in filtration system, making the manual process that used filter cones and cone holders a thing of the past. The original design included round drain lines, solenoid return valves and a filter-foot. Through the last several years, the filtration concept has remained basically unchanged. Oil is drained from a fryer, a pump is engaged and oil returns to the frypot through the filter medium. In the next few pages you will find basic troubleshooting information and operation hints that will assist you when servicing all Frymaster filtration systems. Originally, the Filter Magic System included a filter-holder or filter-foot. The filter-foot provided a means to hold and seal the paper to the suction pipe while ensuring an even distribution of the sediment. The filter pan or drain drawer was simply a holding tank for the oil. A heater on the bottom of the pan prevented shortening from solidifying. The filter-foot and original filter pan remain available for field replacements. The standard Filter Magic System, denoted by the "FM" model prefix, is available in a full and an under counter-sized cabinet. The filter cabinet houses the pump/motor assembly and the filter pan assembly. Filter-foot on early Filter Magic filtration systems. Many customers use the full size cabinet with the optional heat lamp and dump station package. Filter Magic H50 Fryer/Filter system with heat lamp and dump station 5-

116 Filtration Systems Filter Magic II In 1989, the Filter Magic II design was released. The most noticeable difference was the deletion of the filter foot and the addition of an inner pan and hold-down ring. This new design reduced the residual oil or "heel" left in the bottom of the filter pan. In addition to the oil savings, the inner pan was designed for easy cleaning. The inner pan can be washed in most commercial dishwashers. Hold-down Ring Pan Handle Inner Pan Slip fitting on bottom of filter pan O-ring Filter Pan Pick-up Tube Suction Tube Outer-pan shown without base or tube cover Suction tube shown with heater tape Filter Magic II Pan Assembly (built before /99) 5-3

117 Filtration Systems In 1999, a new one-piece Filter Magic II filter pan was introduced, replacing the inner and outer filter pans with a one-pan system. A pan heater is no longer needed. The suction tube now runs inside the pan and is heated by the hot drained shortening. The hold-down ring and crumb-screen remain the same as the previous style. Filter Magic II Pan Assembly (built after /99) The new style pan is not a direct replacement for the old two-pan system, which is still available as a service part. The new pan is narrower and will fall between the rails on the older two-pan system. 5-4

118 Filtration Systems FootPrint Space is often a concern when specifying equipment. Since the Filter Magic System adds floor space or "footprint" to a frying system, the FootPrint system was created to allow customers to enjoy the benefits of built-in filtration without the need of additional and often expensive floor space. Production of the original FootPrint design began in 1988 and was available with batteries of two or more H.E. gas fryers, or the H14/17/ series electric fryers. A filter module including the drain pan, pump/motor assembly and control panel, connected to the fryer return lines via a quick-disconnect return hose. The module could be used with one or more batteries of filter-ready fryers. ON OFF HOT FootPrint I introduced in late

119 Filtration Systems FootPrint II Soon after the Filter Magic II was introduced in 1989, FootPrint II made its debut. The design replaced the earlier FootPrint and included many features introduced in the Filter Magic II design. The most prominent change was the pump/motor placement. It was removed from the pan assembly and mounted to the cabinet base. The oil return line hose was eliminated and replaced by the O-ring/suction tube connection. Heater tape was added to the pump and return lines to reduce blockages associated with the use of solid shortening. O-ring replacement is a part of the required preventive maintenance to the filtration system. An O-ring replacement pack is included with each Filter Magic II and FootPrint II system shipped. FootPrint II Filtration System Insulating Foam Tape Foil Tape Heater Tape Slip Fitting O-rings 5-6

120 In May 1995, FootPrint III was introduced. The new design was phased into the H.E. gas systems first in the McDonald's BH5 series and then into the H50 series and standard electric systems. FootPrint III features one pan instead of two. The pan is situated in a carriage drawer that remains connected to the fryer. Filtration Systems FootPrint III The carriage includes the filter pump/motor assembly, similar to the original FootPrint design. A flexible return hose connects the carriage to the return lines. FootPrint III pan and base assembly (original). Another feature is a check valve on the pan's o-ring connection. This allows the customer to remove the pan without spilling the residual oil or heel through the opening in the bottom of the pan. Current design FootPrint pan assembly (multi-battery FootPrint illustrated). 5-7

121 Filtration Systems Enhanced FootPrint III Filtration System In August 1997, Frymaster began producing a redesigned FootPrint III Filtration System for the H50 Series Gas Fryer. This new FPIII system is being phased in to the other product lines. The following chart details the major differences between the previous version of the FPIII and the redesign: For FootPrint III systems built before September 1999, all heater tapes are wired directly into the line VAC source. They remain energized as long as the unit is plugged in. In systems built in September 1999 and later, oil return line heater tapes have been eliminated. In these units, the only heater tape used is on the suction tube and pump. This tape is still wired directly into the line voltage. A pair of vacuum-breaking solenoids is wired into the 4 VAC circuit. Solenoid vents on pump motor and oil return plumbing. The redesigned FPIII is distinguished from the original design by the absence of casters on the filter base assembly. The redesign incorporates an improved oil return system that allows oil/shortening to drain back to the filter pan when the filter system is turned off, eliminating the need for most heated oil-return components. ORIGINAL VS REDESIGNED FP-III FILTRATION SYSTEM Original System Return lines and manifolds wrapped with silicone strip heaters and aluminum tape. Filter base assembly connected to unit with a black, heated return hose beneath the filter. Filter base assembly equipped with swivel casters. Operator-removable filter base assembly. (Filter base assembly stoplocks in cabinet can be rotated to remove tray.) Oil/shortening remains in return lines when filter system is turned off. Return drain-manifolds are constructed with pipe nipples, elbows and other plumbing components. Redesigned System No heater strips or aluminum tape on return lines. Non-heated Teflon hose with a swivel joint connects the filter base assembly to the unit above the filter. Filter base assembly has no casters. Filter base assembly is not removable except by a qualified service technician. (Filter base assembly stoplocks fitted with a screw and nut to prevent filter removal.) Oil/shortening drains back to the filter pan when filter system is turned off, leaving no oil or shortening in return lines. Return drain manifolds are one-piece with an in-line solenoid valve to facilitate drain to filter pan. 5-8

122 Filtration Systems Square Drain The only change is the addition of a ¼ NPT vent coupling to the leftmost end sections to allow attachment to a vacuum-breaking solenoid. Power Shower One-piece, welded front and rear manifolds and Dormont stainless steel flexlines replace the various pieces of ½ NPT piping, flexline, and heater-strips used on the original-design filtration system. A solenoid vent valve, designed to prevent vacuum-lock of the system as oil/shortening drains back to the filter pan when the unit is turned off, is mounted on the left end of front the manifold. Filter Base Casters are not present on the new-design filter base. The filter base is secured to the cabinet, but the filter pan is removable. The return hose is fitted with a swivel attachment to prevent kinking. 5-9

123 Filtration Systems FPIII and FMII Square Drain Components Gas and Electric Two types of clamp assemblies are used to connect square drain assemblies in gas and electric fryers. In H50-series gas fryers, both types are used. All H5-series and H50 fryers with FootPrint filtration systems incorporate clamp assemblies comprised of a rubber boot that connects two square drainpipes together. Square drainpipes used with this type of clamp do not have flanges. Clamp assemblies incorporating boots allow drain-components to be removed and reinstalled with minimal labor when frypots are changed and/or serviced. Because the boots are somewhat flexible, they are less apt to leak when square drain assemblies are reassembled after removal. Clamps securing boot. Rubber boot. In H14/17/-series electric fryers and Filter Magic-equipped H50-series gas fryers are equipped with a flange-clamp assembly. A gasket is inserted between two flanged square drainpipes, then metal clamps are inserted over the joined flanges and connected with bolts and nuts. Because of frypot drain-valve nipple orientation on Filter Magic-equipped gas fryers and all electric fryers, clamp assemblies incorporating flange clamps are used to increase rigidity of the connected square drains. The frypot drain-valve nipples also support the square drain assembly. Clamp assemblies used in electric and Filter Magic-equipped H50-series fryers. 5-10

124 Filtration Systems Filter Magic-equipped gas and electric frypot drain-valve nipples pass through rubber grommets and are secured to the square drain section with conduit nuts. Drain valve nipples supply support to the square drain assembly. Conduit nut securing square drain assembly to drain valve. H5- and FootPrint-equipped H50-series frypot drain valve nipples are inserted into the square drain section through an O-ring in the valve body, and do not require additional connecting hardware. Braces on the drainvalve, not the frypot drain-valve nipple, support the square drain assembly. A drain section is fitted to a drain valve on an H50/5 fryer. Brace securing square drain assembly to drain-valve. 5-11

125 Filtration Systems Filtration Diagnostics Operator error is by far the most common cause of filtration failure. Although three forms of operator instructions are included with each system, filtration failure continues to originate from improper filter operation. The number one operator error is failure to place the filter screen in the filter pan prior to installing filter paper. The filter screen must be properly placed prior to paper installation or the system will malfunction. Operator errors include: Filter Paper: Improper size Incompatible generic paper Paper towels, coffee filters used Filter Set-up: Paper not used Paper incorrectly installed Pan screen not present Screen improperly placed Pan not cleaned Crumb tray not used Operation: Oil below set-point temperature Frequency of filtration Shortening solidified in pan or suction tube 5-1

126 Filtration Systems Filter Pan Blockage Incorrectly sized or installed paper will also allow food particles and sediment to pass through and clog the suction tube on the bottom of the outer pan. Items large enough to block the pan suction tube can indicate that the crumb tray is not being used. The crumb tray will prevent larger items from entering the filter pan. Blockage can also occur if shortening is left in the pan and allowed to solidify. The heater strip on the suction tube is designed to prevent solidification of residual shortening left in the tube. It will not melt or prevent solidification of the heel. Blockage removal can be accomplished by forcing the item out with an auger or drain snake. Compressed air and other pressurized gases should not be used to force out blockage. Later versions of the pan include a clean-out plug located at the top of the female pick-up tube. The current design routes the tube through the interior of the pan, reducing blockage occurrence and eliminating heater tapes. Previous style Clean-out access Blockage Clean-out access Current style The redesigned pan incorporates a drainline inside the pan, eliminating the need for heater tapes. Blockages are also reduced with this design. 5-13

127 Filtration Systems Pump Blockage Incorrectly sized or installed filter paper will allow food particles and sediment to pass through the filter pan and into the pump. When sediment enters the pump, the gears can bind up causing the motor to over heat. The thermal overload then trips and protects the motor from further damage. Remember, sediment can not enter the pump when the correct filter paper is used properly. A pump seized by debris or hard shortening can usually be freed up by manually moving the gears with a screwdriver or other instrument. To free sediment: Sediment Particle Oil Flow 1. Disconnect power to filter system.. Remove the input plumbing from the pump. 3. Use a screwdriver to manually turn the pump gears. Turning the pump gears backwards will release a hard particle and allow removal. Turning the gears forward will push softer objects and solid shortening through the pump and allow free movement of the gears. Sediment Particle Up for reverse Down for forward If it is not possible to remove the blockage by manually turning the pump gears, it will be necessary to remove and disassemble the pump. A seal and gasket kit is available and required to properly reassemble the pump. Filter pump assembly. 5-14

128 Filtration Systems Electrical Theory Filter Magic II (prior to April, 1999) and FootPrint II The pump/motor receives power through the contacts of the pump relay. Microswitches, wired in parallel, provide the 4VAC required to activate the coil of the pump relay. The outer filter pan's heater is connected to the 4VAC source via bullet contacts on the rear of the pan. The green "ready" light indicates when the pan heater is engaged. A resistor in parallel with the 4VAC-relay light limits the voltage drop across the bulb and should prevent premature bulb failure. Transformer 4VAC Resistor Pan Heater Light Pump Control Switches Relay Coil Relay Contacts Pump Motor M Pump Heater Filter Magic II (prior to April 1999) and FootPrint II Simplified Wiring Diagram. 5-15

129 Filtration Systems FootPrint III On FootPrint III systems before August 1999, the pump/motor received power through the contacts of the pump relay. Microswitches, wired in parallel, provided the 4 VAC required to activate the pump relay coil. Since August 1997, FootPrint III filter systems have been redesigned to eliminate the need of oil return-line heater tapes. In these units, the only heater tape used is on the suction tube and pump. This tape is wired directly into the line voltage. A pair of vacuum-breaking solenoids is wired into the 4 VAC circuit. Line VAC All Heater Tapes (Original and Redesigned Models) (Heater Tapes have been removed from oil return lines in Redesigned Models) 4VAC Solenoids (Redesigned Models Only) Microswitches Pump Relay Coil Pump Motor M Relay Contacts FootPrint III Simplified Wiring Diagram 5-16

130 Filter Magic II (after April, 1999) Filtration Systems Since April 1999, the Filter Magic II one-piece pan assembly has eliminated the need for the suction-tube heater tape and green "filter ready" indicator light. Line VAC Transformer 4VAC Microswitches Pump Relay Coil Relay Contacts Pump Motor M Pump Heater Filter Magic II (after April 1999) Simplified Wiring Diagram. 5-17

131 Dean Dean Equipment Fryer Serial Numbers Model Number Identification Model Prefixes 6-1

132 Dean Dean Fryer Serial Numbers W SS Model Number Serial Number D95 Month Year Not Applicable for I.D. Purposes Construction 971GA0001 Sales Order Number Manufacture Order Number Month Built Year Built Month/Year Series Code Manufacture Sequence Original Style (Upper Left): Model numbers precede a series of four or five numbers in original Dean serial numbers. This serial number format ended in late-1988, and fryers with these serial numbers are no longer under warranty. "W" Prefix Style (Upper Right): In early-1989, Dean Industries changed the serial number format to a series of numbers preceded by a "W", and ending with a suffix of either "SS" or "MS". The model number is not referenced and must be determined. As illustrated below, the first two numbers (shaded dark-gray) represent the month of production. The next two numbers indicate the year of manufacture. The remaining series of numbers denote the manufacturing sequence and are not significant. The last two letters (shaded light gray) denotes the material used in frypot construction (SS = Stainless Steel and MS = Mild Steel). Single-Letter Style (Lower Left): From early-1994 through mid-1997, Dean Industries used another type of serial number. Serial numbers in this period include a letter after the eighth or ninth number. As illustrated below, the first set of five or six numbers (shaded dark-gray) are the sales order number. The next three numbers denote the manufacture order for each individual unit (e.g. 001, 00, etc.). The letter (A L) preceding the unit number is the month of production, followed by the year of manufacture (shaded light gray). The model number is required to determine material used in construction. An "S" at the end of the model number denotes stainless steel construction; no "S" denotes mild steel construction. No information about filtration systems, computer configurations, basket lifts, etc., is contained in the previously discussed serial-number formats. Field service-technicians or store personnel must determine what options are present at the time of service. In some cases, Frymaster/Dean Technical Service card files will indicate fryer configuration, but not always. Configuration options must be confirmed at the fryer location as files in the Frymaster/Dean Technical Service Department only cover a limited range of serial numbers. 6-

133 Dean Current Style (Lower Right): Beginning in mid-1997 (current production), Dean revised their serial number format to resemble the Frymaster serial-number system. As illustrated below, the first four digits (shaded dark-gray) indicate the year and month of manufacture (98=1998; 07=July). The two letters in the fifth and sixth position (shaded light gray) denote the class code by fryer. The last four numbers denote the manufacturing sequence for that month. Model Number Identification Oil capacity (pounds):0, 35, 50, 60, 80 G = Gas E = Electric SM50G M S SR = Super Runner SM = Super Marathon D = Decathlon TC = Counter Top T = Electronic Thermostat M = Millivolt I = Electronic Ignition (4V) DI = Drop In S= Stainless Steel No "S"= Mild Steel 44G TI Frypot dimensions, ( i.e. 4" x 4"). G = Gas E = Electric T = Electronic Thermostat Controller I = Electronic Ignition (4V) Dean Model Prefixes (SR) Super Runner (SM) Super Marathon (D) Decathlon Single fryers only; no filter; millivolt only; no basket lifts. Can be single or multiple fryers; optional built-in filtration; usually millivolt; optionally equipped with basket lifts. Can be single or multiple fryers; optionally equipped with electronic controls (electronic thermostat or computer); optional built-in filtration; optionally equipped with basket lifts. (TC) Triathlon Countertop fryer; millivolt only. 6-3

134 Dean Millivolt Fryers Super Runner, Super Marathon & Triathlon General Information Components Troubleshooting Super Runner 4 Gas Fryer Triathlon TC-5 Millivolt Fryer 6-4

135 Dean GENERAL INFORMATION The most basic of the Dean fryers are millivolt-operated and thermostat-controlled models. The Super Runner (SR) and Super Marathon (SM) models are essentially alike in operation, with the primary difference being oil capacity and physical size. The table below covers current production units (SR38G fryer production was discontinued in May 00). MODEL OIL CAPACITY BTU. FRYING AREA CONTROLS SM0G 0-3 lb. 50,000 6 ½" x 14" Millivolt SM35(40)G lb. 90,000 14" x 14" Millivolt SM50G lb. 115,000 14" x 14" Millivolt SM60G lb. 150,000 18" x 18" Millivolt SM80G lb. 165,000 0" x 0" Millivolt SR38G* lb. 90,000 1" x 14" Millivolt SR4G lb. 105,000 14" x 14" Millivolt SR5G lb. 10,000 14" x 14" Millivolt * Discontinued Model The Dean line of countertop fryers consists of two fryers, the TC5 and TC35. The models are very similar in appearance and in operation. The TC35 has five burner tubes, and the TC5 has four burner tubes. Both are millivolt fryers. TC35 fryer production was discontinued in May 00. MODEL OIL BTU. FRYING COMMENTS CAPACITY AREA TC5 5 lb. 7, " x 14" Millivolt- 4 Burners TC35* 35 lb. 90,000 14" x 17" Millivolt- 5 Burners * Discontinued model. 6-5

136 Dean COMPONENTS Gas Valves Millivolt units are equipped with a Robertshaw or Honeywell gas valve. Both valves are powered by a thermopile (or pilot generator) and do not require an external electrical source to operate. The thermopile is also part of the pilot safety circuit. Beginning in March 1994, the Honeywell millivolt gas valve was phased into the Super Marathon Fryer line. Some units (i.e. SM0G) may still incorporate a Robertshaw gas valve. The SR38G fryer was manufactured with the Honeywell gas valve from its inception, up until discontinued in May 00. Honeywell Millivolt Gas-valve Robertshaw Millivolt Gas-valve Pilot Assembly The pilot assembly consists of a pilot orifice, pilot hood, thermopile and mounting bracket. The pilot serves two functions: 1. Lights the main burners. Heats thermopile. Pilot Hood Thermopile Mounting Bracket 6-6

137 Dean Thermostats The Robertshaw or Sunne operating-thermostats used in Dean millivolt fryers are accurate to within approximately ±15 F. The manually operated thermostat operates in a range of F and is used in all Dean millivolt fryers. The high-limit thermostat acts as a safety switch to protect from extremely high oil temperatures. If the oil temperature exceeds the manufacturer s pre-set temperature of F, the high-limit will open and de-energize the gas valve. The high-limit thermostat is wired into the pilot-valve coil circuit. When the high-limit switch is open, the gas valve loses power, and both pilot and main burners are extinguished. Gas Pressure Dean millivolt fryers all operate on the same gas pressure, depending on gas type. For natural gas, the valve supplies 4" WC to the burners. For LP (including butane and butane mixtures) the valve is set at 10" WC to the burners. These fryers all require incoming gas pressure in the range of 6-14" WC for natural gas, and 10-14" WC for LP. The burner flame should be a rich, blue color, turning yellow/orange as it goes through the diffusers in each burner tube. Millivolt Function The thermopile voltage output powers the coil of a millivolt gas valve. This output is measured in millivolts or 1/1000 of one volt. The high-limit thermostat acts as a safety switch. The high-limit de-energizes the gas valve when frypot oil temperature climbs from 45 F to 450 F. An operating thermostat controls the main coil actuation and acts as the burner control. Thermopile High-Limit Operating Thermostat Pilot Gas Valve Pilot Magnet Main Valve Magnet Millivolt Circuit: Functional Diagram 6-7

138 Dean White Combination Gas Valve Red Thermopile Combination Gas Valve Pilot Knob Black ROBERTSHAW TH TP TH Vent Operating Thermostat Red Red Black Black Red Safety Valve Red Red T P High-Limit Black Operating Thermostat Red Hi-Limit Black Red Yellow (Braided) Orange (Braided) Thermopile Red Black Red Black Honeywell Millivolt Gas Valve Wiring (Old-Style) Robertshaw Millivolt Gas Valve Wiring Although different in wiring and appearance, both types of gas valves operate similarly in their function. It is also important to note that older Dean fryers (fryers built prior to May 00) using Honeywell millivolt gas valves were wired differently than Frymaster Honeywell millivolt gas valves. Although the valves are similar in appearance, the two systems will not work properly unless the correct wiring schematics are followed. Current production Dean fryers (fryers built after May 00) are wired the same as Frymaster Honeywell millivolt gas valves (see illustration below). Robertshaw millivolt gas-valve wiring remains unchanged. White Combination Gas Valve Red THERMOPILE Red Red TH PP High-Limit TH Black PP Operating Thermostat Black Honeywell Millivolt Gas Valve Wiring (Current Production) 6-8

139 Dean Troubleshooting Millivolt Electrical Circuit Troubleshooting There are some basic troubleshooting procedures that will help solve many millivolt fryer problems. Some of the most frequent problems are: 1. Pilot light will not light. Probable causes: no gas supplied to fryer, bad gas valve, or clogged pilot orifice.. The pilot light lights, but doesn t stay lit when gas valve button is released. Probable causes: open high-limit thermostat, low output from thermopile, or bad wire/wiring connections. 3. Main burner will not cycle on as oil cools below setpoint. Probable causes: bad thermostat or poor connections/terminal crimps on wires between gas valve and/or other components. Replace crimped-on wire terminals with soldered-on terminals to ensure optimum connections. Corrosion or loose connections in a millivolt system will cause a loss of voltage, which directly affects the thermostat and main gas-valve coil operation. 4. Some of the burners don t ignite. Probable causes: pilot flame-holes in the sides of the burner heads are clogged, or the burners may be installed in the wrong position (for example, the right burner only has a flame hole on the left side). 5. Flame rolls out the front of the burners. Probable causes: flue blockage or collapsed flame-diffusers restrict airflow through the heat tubes. 6-9

140 Dean Cool Zone Fryers Decathlon (D0, D35, D50, D60 D80) General Information Components Troubleshooting SCFUD60 with optional Compu-Fry Computer 6-10

141 Dean GENERAL INFORMATION Dean Decathlon gas fryers are manufactured in a variety of different sizes and capacities. There are also significant differences in ignition and control systems. The Decathlon Cool Zone fryers are tube-type fryers, and may incorporate many combinations of multiple-fryer options (possibly different models in the same battery), automatic basket lifts, and built-in oil filtration systems. Major Decathlon models are listed in the table below: MODEL OIL BTU FRYING # BURNERS CAPACITY RATING AREA D0G 0-3 lbs. 50,000 6 ½" x 14" burners D35G lbs. 90,000 14" x 14" 3 burners D50G lbs. 10,000 14" x 14" 4 burners D50GDD lbs. 115,000 14" x 14" 4 burners (Frypot is designed to battery to D60 fryers.) D60G lbs. 150,000 18" x 18" 5 burners D80G lbs. 165,000 0" x 0" 5 burners COMPONENTS Temperature Control Systems Basic operating-thermostat Electronic Thermostat Controller Electronic Thermostat primary with optional operating-thermostat backup Computer (either Dean/Frymaster or Fast computer) Computer with either electronic or operating thermostat backup Ignition System Standing pilot with 10-volt gas valve 4-volt electronic ignition (Pilot lights first, then main burners light after the pilot flame is proved.) Gas Valves Decathlon fryers are currently equipped with a Honeywell or Robertshaw gas valve, but older units may be equipped with a White Rogers gas valve. 6-11

142 Dean Gas Pressure Dean Decathlon fryers require incoming gas pressure in the range of 6-14" WC for natural gas, and 10-14" WC for LP. For natural gas, the valve supplies 4" WC to the burners. For LP (including butane and butane mixtures) the valve is set at 10" WC to the burners. The burner flame should be a rich, blue color, turning yellow/orange as it goes through the diffusers in each burner tube. Burners The easiest way to differentiate between models of Decathlon fryers is to check the dimensions of the cooking area and/or the number of burners/tubes. As seen in the table on the previous page (there are exceptions), most models are different in size and the number of burner/tubes contained. The burners, which are similar in appearance in a given model, are actually manufactured as either left, right or center versions. For example, a D0 will have a left and a right burner. A D60 with five burners will have a left burner, three center burners and a right burner. It is essential that the burners be installed in the correct location. If more than one is removed at a time, they should be marked appropriately for re-installation. Failure to install the burners correctly will result in some burners failing to light properly, or not at all. Pilot Assembly The pilot assembly for the 10-volt gas valve unit is constructed the same as that used in millivolt fryers and accomplishes the same function. Electronic Ignition The ignitor for the 4-volt ignition system is slightly different from the standard pilot assembly. A flame-sense rod replaces the thermopile in electronic ignition assemblies. Cool Zone Ignitor Cool Zone Flame-Sense Rod D0 Pilot Assembly 6-1

143 Dean Temperature Controls The Robertshaw or Sunne operatingthermostat and high-limit thermostat used in these fryers are the same components used in the Super Marathon millivolt fryers. In the Decathlon series however, the highlimit thermostat is normally wired in series with the gas valve main coil, instead of the pilot coil. When the high-limit switch opens, it cuts power to the gas valve, and extinguishes the main burners. High-Limit Operating-Thermostat Operating Thermostat ON/OFF Switch 4VAC Transformer Line Voltage Gas Valve Main Valve Magnet High-Limit Thermopile Pilot Magnet Pilot Decathlon 4V Circuit: Functional Diagram Many Decathlon fryers use an electronic thermostat controller instead of the basic operating thermostat. An electronic thermostat system incorporates a temperature-control circuit board, a potentiometer, and a temperature probe. This system is more accurate and more reliable than a standard thermostat, but is also more expensive to purchase, repair or replace. The electronic thermostat temperature probe is different from the operating thermostat in that it is much thinner, and is the same diameter its whole length. Unlike a standard operating thermostat, an electronic thermostat probe works by comparing resistance through the probe circuit to the resistance set in the potentiometer (which corresponds to desired temperature). To check controller and probe accuracy, it is necessary to measure the probe circuit resistance with an ohmmeter and measure the actual oil temperature. 6-13

144 Dean Dean has used two different styles of electronic thermostat controllers, an old style and the current style. Old-style electronic thermostat interface board. Old-style electronic thermostat control panel. Current-style electronic thermostat interface board. Current-style electronic thermostat control panel. The old-style electronic thermostat system (discontinued in 1989) can be easily identified by a push-button test switch on the control panel (probe test button). The probe wires, one black and one white wire, are also indicators of old-style systems (current systems have two black or two brown wires). A replacement temperature-sensor probe is available for old-style systems, but the interface board is not. If the old-style interface board fails, the complete system must be retrofitted with the current-style electronic thermostat system. 6-14

145 Dean The current-style electronic thermostat system can be identified by the absence of a test button on the controller. Also, both wires connected to the probe are either dark brown or black. None of the parts for the two systems are interchangeable. The temperature/resistance characteristics are very different for each probe and the corresponding circuit board. Some Cool Zone series fryers, especially for some major restaurant chains like Chili s, may use a computer control system. It replaces the electronic thermostat controller, and functions similarly while adding cook cycle timing and temperature/timing sensitivity. The computer temperature probe looks similar to the electronic thermostat probe, but is much different in resistance. Confirm the system type installed into the unit when servicing or ordering parts. For the temperature versus resistance readings on the probes, refer to the charts at the end of this section. Dean electronic ignition fryers incorporate a variety of ignition modules. Decathlon fryers have been manufactured with Robertshaw ignition modules, which sense flame through a separate flame-sensing wire. The Honeywell module senses flame through the high-voltage wire. Either of these Robertshaw modules is acceptable for use in Decathlon fryer systems. The Honeywell ignition module senses flame through the highvoltage wire. The modules above are examples of the "dual-stage" ignition module. An electronic spark lights the pilot, then the main valve opens after the pilot flame is "proved". The Robertshaw dual-stage ignition module is currently the only module used. The Honeywell dual-stage module should not be used at this time due to occasional problems with inconsistent ignition. 6-15

146 Dean Wiring Diagram: Decathlon Dual-Vat with Electronic Thermostat Controls BLK To Right Fryer AMP FUSE LEFT FRYER WHT GRD WHT GRN POWER SUPPLY 115 V POWER SWITCH SPST LIGHT BRN WHT To Right Fryer HI-LIMIT THERMOSTAT BLU WHT N.C. C. ORG WHT BLU 115V IGNITION MODULE IGNITOR HI TENSION RED 4V SENSOR WHT RED IGN TR SEN. TH BRN GAS VALVE BLUE BRN WHT GRN PV MV MV/PV CND WHT GRN OPTIONAL BOIL OUT SWITCH ORG BRN WHT GRN POT ORG YEL PUR PUR BLU YEL C RED BLK 9 PIN AMP CONNECTOR RED BRN WHT GRN 4 PIN AMP CONNECTOR PIN CONNECTOR-AMP PUR BLK 6 48 OHMS RESISTOR YEL BLU WHT BRN PUR YEL ORG BLK WHT RED BRN 10VAC ELECTRONIC THERMOSTAT CONTROLLER TEMP. SENSOR BLK WHT Part 1 of 6-16

147 Dean Wiring Diagram: Decathlon Dual-Vat with Electronic Thermostat Controls (cont.) To Left Fryer BLK BLK AMP FUSE LIGHT To Left Fryer WHT HI-LIMIT THERMOSTAT WHT ORG BRN RIGHT FRYER BLU WHT N.C. C. ORG WHT BLU 115V IGNITION MODULE IGNITOR HI TENSION IGN RED TR 4V SENSOR WHT SEN. RED TH GAS VALVE BLUE BRN WHT GRN PV MV MV/PV CND WHT BRN 115V 4V ALTERNATE IGNITION MODULE 4V 4V MV MV/PV PV GND GRN HI TENSION LEAD BLUE WHT BRN GRN IGNITOR GAS VALVE POT PUR BLU YEL OPTIONAL BOIL OUT SWITCH C RED BLK 9 PIN AMP CONNECTOR ORG BRN WHT GRN RED BRN WHT GRN ALTERNATE GAS VALVE GAS VALVE 4 PIN AMP CONNECTOR 1 ORG YEL PUR PIN CONNECTOR-AMP PUR BLK 48 OHMS RESISTOR YEL BLU PUR YEL ORG BLK WHT WHT RED BRN BRN 10VAC ELECTRONIC THERMOSTAT CONTROLLER 10 VAC TEMP. SENSOR 1 BLK WHT Part of 6-17

148 Dean TROUBLESHOOTING Pilot Malfunctions 1. Pilot fails to light. a. Ensure the gas valve is on. b. Check pilot burner adjustment. Adjust pilot flame to extend about 1/" above the top of the pilot burner. c. Check pilot gas line and pilot burner orifice for blockage.. Pilot will not stay lit after gas valve knob is released. a. Check that thermopile wires are tightly attached at gas valve. b. Pilot flame adjustment too low. c. Pilot flame not in good contact with thermopile due to drafts or make-up airflow. d. Thermopile defective. 3. Pilot flame goes out when burners come on. a. Pilot flame is too low even though it looks OK. Adjust higher. b. Incoming gas volume may be low. Check incoming gas connection and supply. 4. Pilot flame is proper size but unstable. Flame waivers or does not envelop the thermocouple completely. a. Check for drafts caused by air conditioning equipment or make-up air. Main Burner Malfunctions 1. Main burner will not come on no gas present at main burner. a. Gas valve open? b. Check pilot light. c. Bad gas valve? d. Defective high-limit? e. Drain valve closed completely? Check reset switch also. f. Check probe if electronic thermostat-equipped.. Main burner flames are small and lazy oil heats slowly. a. Gas pressure below specifications. (4" W.C. for natural gas, 11" W.C. for LP). b. Restriction in flue. 6-18

149 Dean Main Burner Malfunctions (cont.) 3. Signs of excessive temperature - oil scorched/discolored. a. Check thermostat calibration. b. Gas pressure above specifications. c. Shortening is of inferior quality or used too long. d. Short circuit. Check wiring and harnesses. 4. Fryer fails to reach setpoint or runs erratic. a. Incorrect location of sensor probe or defective probe. b. Operating-thermostat or electronic thermostat controller defective. 5. Fryer comes on when reset switch on drain valve is pressed, but instantly goes out when reset switch is released. a. Drain-valve microswitch is not positioned properly or is defective. 6. Fryer temperature cannot be controlled - runs to high limit temperature. a. Defective electronic thermostat controller or operating-thermostat. 6-19

150 Dean Dean Electronic Thermostat Probe Resistance Charts Below are resistance charts applicable to Dean fryers equipped with electronic thermostat controllers. Old-style electronic thermostat resistance values are included to troubleshoot systems built prior to Current-style electronic thermostat resistance values are included to troubleshoot systems built after 1990 through current production. Old-Style Electronic Thermostat Systems (Probe wire color: One Black Wire; One White Wire) Current-Style Electronic Thermostat Systems (Probe wire color: Two Black Wires or Two Brown Wires) Celsius Fahrenheit Ohms (± 3%) Celsius Fahrenheit Ohms (± 3%)

151 Dean Flatbottom Fryers 184G 44G General Information Components Troubleshooting Dean 44 Flatbottom gas fryer with optional crumb dump, marine edge and casters. 6-1

152 Dean GENERAL INFORMATION MODEL OIL BTU FRYING CONTROLS CAPACITY AREA 184G (T) lb. 10,000 18" x 4" Operating Thermostat or Electronic Thermostat 44G (T) lb. 10,000 4" x 4" Operating Thermostat or Electronic Thermostat Dean Flatbottom fryers are unique in the Dean line. They are the only units that incorporate draft-inducers, or blowers to move combustion air over the burners. The blower is mounted in the exhaust flue area and operates by pulling air over the burners, which directs the combustion products back and forth across the underside of the frypot, through a series of baffles, thus facilitating even heat transfer. Because the draft-inducer operates only during the combustion cycle, cold air is prevented from entering the combustion chamber and cooling the oil during the coasting or non-heating cycle. Temperature Control Options Standard operating thermostat. Electronic thermostat controller. Electronic thermostat primary controller with operating thermostat backup. Ignition System Options Standing pilot with 10VAC gas valve. Direct spark ignition with 4VAC gas valve. Direct Spark Ignition Ignitor 6-

153 Dean The Honeywell direct-spark ignition module is used in Dean flatbottom 184 and 44 gas fryers with direct-spark ignition. This module operates differently from the dual-stage modules previously discussed, and cannot be used to replace faulty dual-stage modules. Although similar to the Frymaster ignition module, the Dean Honeywell direct-spark module lacks an "Alarm" terminal. The Dean Honeywell module should have stickers on the top or bottom identifying it as an 11- second module. The Frymaster Honeywell module can be used in Dean flatbottom systems, but Dean Honeywell modules cannot be used in Frymaster systems. Honeywell Direct-Spark ignition module COMPONENTS Pilot Assembly The pilot assembly is constructed the same as pilot assemblies covered in the Millivolt Fryer section. Gas Valves Flatbottom fryers may use either a Robertshaw or Honeywell gas valve. Normally, the 10VAC version uses a Robertshaw valve, and the 4VAC electronic ignition version uses a Honeywell valve. In the 4VAC version, the temperature-control circuit powers a 10/4VAC transformer, which powers the module and gas valve. Although there is no actual pilot assembly, the ignitor and flame sensor assembly is often mistaken for a pilot assembly. The 10VAC valves use a thermopile as part of a safety circuit much like a millivolt valve. If the pilot is not lit, the gas valve will not open. 6-3

154 Dean Burners Dean flatbottom fryers each have three burner tubes. Each burner has its own orifice, but all three burners go into a single burner/heat diffuser area under the frypot. The flame is drawn through the diffuser/baffle area where the heat is transferred to the bottom of the frypot, thus heating the oil. Front view of burner area Front Oil Drain Flame Baffles Temperature Control Systems The electronic thermostat controller system is the standard temperature-control system and may be used with either the standard 10VAC-gas valve or 4VAC electronic ignition. See the Decathlon Fryers section for a detailed description of the electronic thermostat controller system. The standard Robertshaw or Sunne operating-thermostat and the high-limit thermostat used in these fryers are the same components used in the Super Marathon millivolt fryers. The operating-thermostat control system is not very common, and is usually found in older fryers. In Dean Flatbottom fryers, the high-limit thermostat is wired in series with the gas valve main coil in a 10VAC system or on the primary side of the 10/4VAC transformer in a 4VAC ignition system. When the high-limit switch opens, the gas valve or the 4VAC transformer loses power and shuts off the main burners. 6-4

155 Dean Gas Pressure Dean Flatbottom fryers require incoming gas pressure in the range of 6-14" WC for natural gas, and 10-14" WC for LP. For natural gas, the valve supplies 4" WC to the burners. For LP (including butane and butane mixtures) the valve is set at 10" WC to the burners. Wiring Schematic 10V BLK GRN WHT RED LIGHT HIGH-LIMIT THERMOSTAT POWER SWITCH AMP FUSE LIGHT BLK BLK WHT BOIL OUT SWITCH LIGHT BOIL OUT RELAY NC NO C ORG RED MOTOR BLU AIR PROVER GREEN LIGHT WHT WHT WHT WHT BLU TRANSFORMER VAC 4V AC LIGHT 7 PUR YEL RESET SWITCH BRN RED RELAY BRN 9 PIN CONNECTOR MOLEX GRN WHT A BLK 115V A DSI IGNITION MODULE RED 4V RED GRN BRN VALVE SWITCH OPTIONAL SAFETY SWITCH HIGH TENSION LEAD WHT WHT BRN SPARK IGNITOR FLAME SENSOR GAS VALVE POT TEMPERATURE SENSOR BLK BLK AMP -PIN CONNECTOR 1 1 BLK BLK ORG YEL PUR PUR YEL ORG 48 OHMS RESISTOR RED WHT BRN BRN GRN 10VAC ELECTRONIC THERMOSTAT CONTROLLER OPTION A GAS VALVE THERMOCOUPLE A 10VAC P/N NAT P/N LP LINE VOLTAGE BURNER GND TO IGNITOR 4 VAC SIGNAL & PROBE CIRCUITS In the 4VAC electric-ignition models, 10VAC from the control circuit passes through the sail switch, the high-limit thermostat, and the 10/4VAC transformer to the spark module. The module opens the gas control valve and causes the ignitor to spark for a predetermined time. The spark will stop at the end of the predetermined time regardless of burner ignition. 6-5

156 Dean Wiring Schematic (cont.) The electronic thermostat controller or the operating-thermostat controls the system as long as the flame sensor detects the flame. In the 10VAC models, a similar power flow occurs. The main difference, other than the standing pilot, is that the control circuit voltage energizes the 10VAC gas-valve main-coil directly after passing through the blower, the sail-switch, and the high-limit thermostat. The Dean Flatbottom fryers may be controlled in a variety of ways. Because models 44G and 184G look almost the same in any configuration, it is essential to determine the type of ignition and temperature control system for proper troubleshooting and repair. TROUBLESHOOTING Pilot Malfunctions 1. Pilot will not come on at all. a. Gas valve on? b. Check pilot gas line and pilot burner orifice for blockage.. Pilot will not stay lit after gas valve knob is released. a. Check that thermopile wires are tightly attached at gas valve. b. Pilot flame adjustment too low. c. Pilot flame not in good contact with thermopile due to drafts or make-up airflow. d. Thermopile defective. 3. Pilot flame goes out when burners come on. a. Pilot flame is too low even though it looks OK. Adjust higher. b. Exhaust blower airflow is blowing out flame. Adjust higher. c. Incoming gas volume may be low. Check incoming gas connection and supply. 6-6

157 Dean Main Burner Malfunctions 1. Main burner will not come on blower running. a. Gas valve open? b. Bad gas valve? c. Defective high limit? d. Blower sail (air-prover) switch defective or not actuating?. Blower not operating, although oil temperature is below setpoint. a. Defective electronic thermostat controller temperature probe. b. Foreign material blocking fan wheel. c. Defective safety circuit component (if so equipped) or circuit not properly reset. d. Blower motor overheated and tripped thermal overload (auto-resets in approx. 30 minutes). 3. Main burner flames are small and lazy oil heats slowly. a. Gas pressure below specifications. (4" W.C. for natural gas, 10" W.C. for LP). b. Restriction in flue. 6-7

158 Dean Electric Fryers 18UE/18E/14E, EH171 General Information Components Troubleshooting EH171 3-Battery System With Holding Cabinet and Built-In Filtration 6-8

159 Dean GENERAL INFORMATION Dean electric fryers are divided into two main categories, Cool Zone Electric and Flatbottom Electric. Cool Zone models are all essentially alike in design, with the primary differences being size, power usage, and oil capacity. Although 08VAC is the standard voltage, Cool Zone fryers are also available in 40 VAC, 480 VAC, and other voltages used internationally. Flatbottom electric fryers are essentially the same operationally as the Cool Zone fryers, but are structurally different because they are designed to cook a different kind of product. COMPONENTS Ultimate Electric Models Ultimate Electric fryers use a tilt-element system similar to Frymaster's electric fryers. The Dean 18UE fryer is a new style fryer manufactured by Dean. Originally built for KFC, it is now being sold to other restaurants. It is a high-volume fryer with a built-in filtration system. The frypot design differs from all other Dean designs. Production began in October 1998, with several prototypes put into service in various parts of the world. Ultimate Electric fryers incorporate a combination of Dean and Frymaster technology, including Frymaster components such as elements and controllers. Dean has built other tilt element fryers based on the 18UE prototype. KFC and Taco Bell use the 18E and 14E fryers. The 18E is essentially an 18UE fryer with a KFC-1 Computer and KFC-style drain/filter system. KSCFH18E Electric Fryer The 14E has a 14" x 14" cooking area, while the 18E has an 18" x 18" cooking area. A third 18UE variant is the Frymaster EH171 fryer that shares many common components with the original 18UE. 6-9

160 Dean Internal Operations and Systems Two contactors, one latching and one heating, control power to the elements. The latching contactor engages when the main power switch is turned on. Power is also supplied to the electronic thermostat controller. The heating (or cycling) contactor energizes as the electronic/operating thermostat calls for heat. If the high-limit thermostat opens, power is cut to the coil of the latching relay and to the electronic/operating thermostat controller. Most flatbottom electric fryers with built-in oil filtration incorporate a safety-reset system (this does not apply to 18UE/EH171 fryers). It consists of a power switch, a momentary reset switch, a drain-valve-mounted microswitch and a relay. When the drain valve is opened, the microswitch opens, de-energizing the relay and shutting off power to the electronic/operating thermostat. For morning start-up, or to reset the system, turn the power switch on, then ensure that the drain valve is fully closed (microswitch activated). Press the reset switch momentarily to the "ON" position, which will energize the relay and route voltage to the temperature controller, heat light and heating contactor-coil. In addition, KFC 14E and 18E fryers are equipped with a float safety switch, which deenergizes the system if the oil level drops below a safe level. Wiring Diagrams 08V OR 40V ELEMENTS L R BRN BRN BLU BLK# BLK# LATCH CONTACTOR K1 K HEAT CONTACTOR WHT# WHT# BLK# T T1 WHT BLK# FUSE FUSE WHT BLK# 40V (08V) WHT BLK# 40V (08V) WHT# GROUND TERMINAL BLK# BLK# 4V 1V WHT# YEL# HI-LIMIT THERMOSTAT C NC BLK C6 RED BLU RED DRAIN MICROSWITCH 6 4 WIRE 3 PHASE WHT WHT RED 4,4,6 L4 BLK BLK RED RED 5 5 L3 TERMINAL RED RED BLOCK 3 3 L 40V ONLY RED WHT L1 TEMP PROBE J WIRE GND COMPUTER INTERFACE BOARD PHASE 3,6 L ,5 L , L1 TERMINAL BLOCK 1 TO COMPUTER 18UE Electric Fryer with Computer 6-30

161 LIGHT Dean Wiring Diagrams (cont.) OPTIONAL RESET SWITCH POWER SWITCH RED LIGHT POWER SWITCH SPDT 8 7 OPTIONAL BOILOUT SWITCH DPDT HEATING ELEMENTS (08 OR 40V) HIGH LIMIT THERMOSTAT GREEN LIGHT CONTACTORS K1=40/08V COIL K=40/08V COIL WHT RED LIGHT BRN PUR 30 VAC TRANS- FORMER 4V AC BRN WHT WHT 1 BLK 3 BLUE 4 RED C NC 40VAC PURP PURP BLK BLUE WHT K1 BLK K 5 AMP FUSE BRN YEL RESET SWITCH RED VALVE SWITCH RELAY 6 POT MOLEX PLUG 40 SHOWN PIN 8 08V MOLEX SOCKET OPTIONAL THERMOSTAT TEMP. SENSOR MOLEX PLUG MOLEX SOCKET 1 1 AMP PLUG SOCKET 48 OHMS RESISTOR BRN ,6 L3,5 1,3 L L1 TERMINAL BLOCK GROUND TERMINAL THREE PHASE 3 WIRE LINE VOLTAGE 4 VAC SIGNAL & PROBE CIRCUITS Flatbottom Electric with Electronic Thermostat Controller 6-31

162 Dean TROUBLESHOOTING 1. The most frequent problem is that the fryer will not heat at all. First, ask these questions: a. Is the fryer plugged in (three-phase plug)? b. Is the three-phase circuit breaker tripped? c. Is the drain valve microswitch activated (if so equipped)? If so, reset safety switch.. If those are OK, next check the temperature control circuit. a. With unit calling for heat, is there power going into the thermostat/thermatron board? b. If there is no power going into the Thermatron or thermostat, check the safety circuit for defects in the microswitch and relay. c. Power in but not out usually indicates a defective thermostat or temperature probe if the device is set for a temperature higher than the actual oil temp. Check for continuity/resistance through thermostat or temperature probe. (See applicable resistance chart for Thermatron.) d. If the Thermatron probe checks OK, the difficulty is probably in the solid-state G0 board. 3. If the fryer heats, but somewhat more slowly than it should, the most probable causes are: a. Improper incoming voltage. b. You may not have all three phases of power to fryer (if three-phase unit). c. One or more elements may be defective. d. Heat contactor may not be closing properly on all three contacts. 4. The fryer heats OK sometimes, but occasionally won t come back on, and the oil cools below setpoint. a. If unit is thermostatically controlled, probable cause is a defective thermostat. b. On Thermatron-controlled fryers, probable cause is the solid-state circuit board. 6-3

163 Dean Filtration Super Cascade; Under Fryer Filter (UFF); Cascade; Single Under Fryer Filter (SUFF); MF90 Built-In Series and MF90 Portable Series Filters General Information Systems/Components Troubleshooting Dean Under Fryer Filter (UFF) Filtration System 6-33

164 Dean General Information Since the early 1980s, Dean has manufactured five major types of oil/shortening filtration systems. Each system is unique in design and appearance, but all accomplish the same job. The filtration systems, with a couple of notable exceptions, have the same basic components for the filtration process. Each incorporates a main filter pan, with a filter screen or grid on the bottom of the filter pan. On top of the filter screen, filter paper and filter powder are placed. The paper is held in place by a clamp or hold-down ring. Many units have a crumb basket to catch the larger pieces of sediment (not shown). It is important that the filter pan cover be installed before operating the filter system. All systems except MF90 Built-in have pan covers to prevent oil from splashing during the filtering process. Filter Paper Hold-down Ring Filter Pan Cover Filter Screen (always ensure that screen is present before inserting filter paper) Filter Paper Filter Pan Assembly Typical Filtration System Components 6-34

165 Dean Super Cascade Filter (SCF) Super Cascade filter systems were built through 1998, and are installed in batteries of two or more fryers. Super Cascade systems fit under two fryers and do not take up any additional floor space. If there are more than two fryers in the battery, the filter system is normally under the outermost fryers on either end. On old-style systems, the pump and motor are built into the fryer, and the filter unit couples onto the pump with a quick-connect coupling. Super Cascade systems are commonly seen in restaurant chains such as Chili s, IHOP, and some Long John Silver s restaurants. Magnum Filter Leaf Assembly Old-style Super Cascade Filter System An optional "Magnum Filter Leaf Assembly" is available for use on Super Cascade filter systems. It replaces the normal bottom grid, filter paper, hold-down ring, and regular quickconnect with a permanent double-screen filter and standpipe system. The screen assembly is removable for cleaning, and does not use standard filter paper and powder. This option s benefits include the elimination of the cost and problems often associated with paper and powder systems. 6-35

166 Dean Cascade Filter (CF) The Cascade filter system is designed to fit under single fryers, either in a battery or as a stand-alone fryer-filter unit. Cascade filter units do not require additional floor space. If the filter is part of a battery, it always is installed under the fryer on the right end. The filter pump and motor are built into the front of the filter assembly. The unit is selfcontained, just requiring a power receptacle. A "CF-ready" fryer has a receptacle for the filtration built into the fryer. The filter unit can be moved from one "CF-ready" fryer to another, allowing the user to filter several fryers with one filter unit. The CF unit can also function as a portable filter unit when used with the optional hose and nozzle assembly. Under Fryer Filter (UFF) Beginning in 1999, Dean introduced a new Super Cascade Filter model, often referred to as the Under Fryer Filter (UFF). The design incorporates a new oil return system modeled after Frymaster's FootPrint III. Oil is returned to the fryer by an oil pickup tube (mounted on the fryer's front channel) inserted into a filter pan connector. The filter-pump motor is activated by either a yellow pull-handle (similar to the old system), or by a red handle located under the fryer control panel. Oil Pickup Tube Filter Pan Coupler New-style Filter Pan Connection Under Fryer Filter systems may have a blue pull-handle, which operates an optional drain flush or hose/wand system. Optional blue pull-handle on UFF systems. 6-36

167 Dean Single Under Fryer Filter (SUFF) Single Under Fryer Filters (SUFF) are designed differently from earlier Cascade Filters (built until early 00). The new design couples to the oil return system similarly to the new Under Fryer Filter system. Also, the filter pump and motor are in the fryer cabinet. Micro-Flo Filters (MF-90 Series) BUILT-IN FILTER SYSTEMS (BI) Micro-Flo filter systems are very similar to the Frymaster Filter Magic system. Micro-Flo built-in filter systems are built into a cabinet matching fryer size and appearance, and are normally attached to either side of a single or multiple-battery (up to five) fryer. The filter system cabinet may also be installed between fryers in a battery. The MF90 BI designation was changed to "BFC" (Built-in Filter Cabinet) in early 000, and production was scaled back to two models: 75BFC (formerly MF90-BI 1A) and 85BFC (formerly MF90-BI 18A). Production of Micro-Flo built-in filtration systems ceased in May 00. The motor and pump are mounted in the fryer, and the filter pan slides in on rails under the motor/pump assembly. The holddown ring normally has latching handles to secure the ring to the filter pan. Built-in filter systems come in a variety of sizes, and are available attached to almost any model. Usually the filter cabinet has a food warmer and dump station built into it above the filter portion. Micro-Flo Filter System (MF-90) MODEL NUMBERS Micro-Flo Built-In Filter Systems APPLICATIONS MF90-1A/15MC (75BFC) SM0G, SM35G, SM50G, D0G, D50G, 714E, 1414E MF90-1B/15MC (Low Profile) SM0G, SM35G, SM50G, D0G, D50G, 714E, 1414E MF90-18A/0MC (85BFC) 184G, 44G, 184E, 44E MF90-0A/0MC SM60G, SM80G, D60G, D80G, 1818E, 00E, 18UE 6-37

168 Dean Portable Filtration Systems Portable filters are manufactured as suction/return or suction-only models. The more common type is the "suction/return" unit. The motor/pump is reversible and allows use of the filter with all fryers with or without a front oil drain. The control switch has three positions: IN OFF OUT. FRYPOT WAND OIL-RETURN HOSE "Return-only" models are exclusively for gravity-draining fryers. The control switch has two positions: OFF RETURN. Portable filtration units are designed as standalone equipment and may be used with non- Dean fryers. Many restaurants, including Burger King restaurants, use Dean portable filtration systems, but do not use Dean cooking equipment. In 1999, Dean began building the PF95-LP as a replacement for Frymaster's model PF90 filter. DRAIN VALVE WITH EXTENSION FILTER PAN QUICK-DISCONNECT COUPLING Portable Filter System Oil Flow PUMP LOCKING REAR CASTERS Micro-Flo Portable Filtration Systems Suction / Return Models MODEL NUMBER CAPACITY MF90AU/65* 65 lbs. MF90AU/80 80 lbs. MF90AU/ lbs. *Discontinued Models Micro-Flo Portable Filtration Systems Return-Only Models MODEL NUMBER CAPACITY MF90U/65* 65 lbs. MF90U/80 80 lbs. MF90U/80 LP 110 lbs. (Low profile filter tank) PF95-LP 110 lbs. (Low profile filter tank) (Replaced Frymaster PF90 filter) MF90U/ lbs. MF90U/160* 160 lbs. MF90U/17* 17 lbs. *Discontinued Models 6-38

169 Dean Portable filter systems employ a hose/wand assembly to return filtered oil to the frypot. It is also used to rinse remaining sediment out the drain valve to prevent clogging and filtered-oil contamination. Suction/Return units also use the hose to suck the oil out of the frypot. When using the suction feature of a portable filter system, it is essential to keep the tip of the filter hose wand out of the sediment in the bottom of the fryer. Although there is usually a filter screen on the tip of the wand (ensure that there is), sediment may be sucked into the unit and clog the pump. If this occurs, the pump must be taken apart and cleaned. With either version, it is best to gravity drain the oil into the filter pan if possible, then use the return hose/wand assembly to flush remaining sediment out the drain valve and into the filter unit. It is essential to know which model of filter system you are servicing, especially when requesting parts. Usually, MF90 is the model number on the data plate, regardless of type of filtration system. The TYPE number, which is normally in a separate block on the data plate, is extremely important in obtaining the correct replacement parts and filter paper. For example, a given model number might be MF90AU/80. AU/80 is the TYPE. If the TYPE is unavailable, get the model/capacity of the associated fryer(s), and the dimensions of the filter tank. Sometimes, the size of the filter paper being used, or the dimensions of the filter grid/channel assembly is enough to establish the model/type of filter. PROPER FILTRATION SYSTEM USE Correct installation and proper use of the filter paper is essential. When filtering, observe the following basic steps: 1. Start with a clean filter pan assembly.. For units using the standard paper and powder system, follow instructions below. If the Magnum Leaf Filter is in use, follow the instructions accompanying the filter system. 3. When using filter paper: a. With paper support screen/grid assembly on the bottom, install one sheet of filter paper. b. Install the hold-down ring assembly. c. Sprinkle 8 oz. of filter powder evenly over the filter paper. 5. If time permits, dampen the powder with hot oil (either by draining some out of the first frypot or by scooping some out of a frypot) and turn the filter pump on momentarily. This ensures a good seal between the paper and the filter screen/grid. 6. Proceed with normal filtration operation. 7. If filtration seems slow after filtering two or three vats, inspect the paper. Clean off excess sediment build-up, or replace filter paper if necessary. 6-39

170 Dean Troubleshooting 1. Filter-pump motor stopped suddenly or doesn t run at all. a. Turn unit OFF. b. Reset wall circuit breaker. c. Press filter reset button. d. If motor repeatedly stops, check for blockages in filter pump.. Motor fails to run after blockages have been cleared. a. Reset internal filter pump circuit breaker. b. Faulty pump-motor. 3. Rate of oil return to the fryer is slowing. a. Filter paper not secured properly by hold-down ring; air is seeping around faulty seal made by the filter paper and hold-down ring. b. Improper use of filter paper and filter powder. c. Sediment is blocking oil-pickup tube in the filter pan bottom. d. Blockage between the filter pan bottom and oil-return valve. 4. Filter pump motor has suction. No oil is returning to the fryer. a. Check flexible oil-return hose for blockage. Remove blockage by immersing hose in hot water to melt shortening. Ensure that the ends of the hose are kept out of water. b. Blockage is between filter pan and pump. Remove line and clear blockage by running a cable through the line. 6-40

171 UHC Universal Holding Cabinet Introduction Diagnostics Calibration Wiring Diagram 7-1

172 UHC The Universal Holding Cabinet Production on the Universal Holding Cabinet (UHC) began in August of 1996 for McDonald s restaurants. The UHC, a shortterm holding station, is designed to extend the freshness of a wide variety of items. Among it attributes: Food items retain moisture and flavor. The unit is accessible from front and back. Easy to program. Easy to clean. No water required in holding trays. Each cabinet has four slots. Each slot is heated, top and bottom, by Heatron heater plates, pads vulcanized to an anodized aluminum surface. A heater probe (RTD) is in the center of each heater plate to ensure accurate temperature measurements. Motherboard, transformer and cooling fans under the UHC top cover. Driver Boards Heater plate with RTD 7-

173 UHC The UHC is controlled and programmed by the front membrane panels above each slot. There are two membranes, front and rear, for each slot. A ribbon cable carries inputs from the membrane to a driver board mounted on the side of the cabinet. The driver board (one per slot) translates information between the motherboard and displays. UHC motherboard. The motherboard caches all the programming for the unit and directs all functions. All programming is entered through the front keypad (illustrated below). Left Timer Key Center Timer Key Menu Key Right Timer Key ENTER SAUS SAUS MENU SAUS PAGE Left Display Center Display Right Display UP/DOWN Arrow Keys Temperature/Enter/Page Key Detailed programming instructions are provided in the manual along with suggested setups for placement of product. Following is an exploration of a common operator error and instructions for a display diagnostic procedure and calibration. Other service and maintenance procedures are detailed in the manual. A slot can be configured to hold as many as three items. However, the required holding temperature of the items sharing the slot must be within ±5 F of the item in the left slot. For example, if the left slot is programmed to hold burritos, which have a setpoint of 180 F, and the next two slots are programmed for folded eggs, which have a setpoint of 155 F, the display above the eggs disappears. The same is true if the product under the left display requires a cooler holding temperature than the neighboring products. The left display rules a slot and temperatures greater than ±5 F simply cannot be entered in the displays to its right. This can confuse operators and generate service calls. 7-3

174 UHC Diagnostics 1. With the cabinet s sides off, disconnect CN connector from the display driver(s) to be tested. Plug unit in and turn on power switch. The selected display will show Disp Test Mode. Press each function button on the selected membrane switch, starting with the timer key at the left front. Each button must be pressed in sequential order, starting at the left on the front display and continuing to the rear display. After all buttons have been pressed, each LED display should illuminate sequentially. CN connectors are disconnected from the driver board to test new displays. * * * * * * ENTER PAGE MENU In the test mode, asterisk-like symbols will illuminate in the displays, appearing to march from display to display from left to right. In units with rear displays, this light motion is repeated on the rear displays. Note: The rear display is differentiated from the front by the absence of UP/DOWN arrows and a MENU switch. If the display fails to perform in this manner, check connection between ribbon cable and display driver, ribbon cable and display assembly and non-terminated ribbon cable and membrane switch.. Turn off power. Reconnect CN connector. Install sides and return unit to operation. Calibration Calibrate the top and bottom plates in all four UHC slots by performing the following procedure with the slots clean, empty and at operating temperature for at least 30 minutes. The procedure should be done once a week. 1. Press the temperature key to ensure the setpoint temperature was held consistently for the 30-minute minimum. 7-4

175 UHC. Slide the Atkins sensor into a slot with the sensor facing upward to measure the top heater plate or downward to measure the bottom heater plate. Move the sensor to the center of the plate. To get an accurate reading, the sensor must be within ± 1 inch of the center of the plate. 3. Allow three minutes for the sensor to stabilize. 4. Read the temperature on the pyrometer. The temperature on the pyrometer should be within ± 5 F (± 3 C) of the temperature on the UHC display. Press the temperature key once to get the slot top plate within tolerance ± 5 F (± 3 C), check the next plate/slot. If the reading is out of tolerance, perform the following procedure: Enter the program mode by pressing the Menu key for at least five seconds. Press the page key until View _ PAGE appears in the slot controller display. Press the Menu key until SECR Lock is displayed. Enter Service Code 47 using the UP and Down arrow keys. Press the Page key to display the slot to be corrected. (For slot 1, the display will read SLOT _ 1.) Press the Menu key until you get to the top or bottom plate for correction. (For a top plate the display should read TOP OFST 0). Press the Up or Down arrow key to enter 1 F/C at a time until the correct offset is achieved. Example: If the temperature readout displays 150 F (65 C) and you measure 155 F (68 C), enter +5 F (+3 C) to achieve the offset. If you measure 145 F (63 C) and the temperature readout displays 150 F (66 C), enter 5 F (-3 C) to achieve the offset. Diagnostic Tests Transformer 1. Disconnect power to cabinet. Remove side and top panels, unless stacked. If stacked, see the service procedures for access instructions.. Mark for re-assembly, then remove the two bottom leads. Connect an AC meter across the outside terminals of the secondary. Apply power and note the voltage. If voltage is approximately 16 VAC, the transformer is operating normally. If zero or incorrect voltage is measured, measure the input voltage at the top two terminals (primary). The acceptable input voltage range is 177 to 64 VAC. 7-5

176 UHC Master Control Board Input Power 1. Disconnect power to the cabinet. Remove side and top panels unless stacked. If stacked, see the service procedures for access instructions.. Visually check all terminals and connections for loose or disconnected wires. 3. Apply power and measure AC voltage to board on connector CN1. Correct measurement is 16 volts across the two outside connectors and 8 volts from either outside connector to the center connector. RTD/Master Board 1. Normally only one or two plates will be suspect. To isolate between a defective RTD, bad wiring connection or defective master board, first perform the heater plate test described on page If the plate tests OK (heater and RTD), isolate further by swapping the leads (heater and RTD) from the suspect slot with a slot that operates correctly. 3. If both slots operate correctly after swapping, a poor wire connection is the probable cause of the malfunction. (Reconnect the wires to their original slots and retest.) 4. If the original slot continues to malfunction with swapped leads, the master board is defective. 5. If the malfunction moves to the other slot, the heater plate/rtd assembly is defective. NOTE: After testing, reconnect all leads to their original positions. Master Board/Display Driver 1. To isolate between a defective master board or display driver, disconnect the front and rear ribbon cables (FC1 and FC) and the CN connector on the suspect display driver. Disconnect the front and rear ribbon cables and the CN connector on the nearest display driver, which operates correctly.. Connect the connectors from the suspect display driver to a known good display driver and test the operation. If the malfunction continues, replace the master board. If the malfunction is corrected, replace the defective display driver. NOTE: After testing, reconnect all connections to their original positions. 7-6

177 UHC Shorted Triac 1. Turn the suspect slot off and measure voltage from the white terminal block to the top (black lead) heater plate. Also, measure voltage to the bottom heater plate. With slot off, there should be no line voltage. If the triac is shorted, you will measure AC line voltage. If the triac is half waving, you will get DC voltage of approximately one-half the line AC voltage. Also, with the slot off, measure the slot temperature. If the slot is heating, it is miswired or the master control board is defective (shorted triac). Display Driver/Display Isolation Test 1. On stand-alone units, disconnect power to the cabinet and remove side and top panels. If unit is stacked, see service procedures for instructions on accessing the top panel.. Disconnect CN connector on the suspect display driver. Apply power. The selected display will indicate Disp Test Mode. (Note: All slots below the selected slot will not operate.) Press each functional button on the selected display, starting with the timer key at the left. Each button must be pressed in sequential order, starting at the left on the front display and continuing to the rear display on all slots. After all buttons have been pressed, each LED display segment should illuminate sequentially. 3. If the unit does not perform as described in step, isolate between a bad display or display driver by connecting the ribbon connector from the suspect display to one of the known good display drivers and repeat the test. NOTE: There is no output from the master control board during this test. If the unit does not operate as described in step, the problem cannot be the master control board. Heater Plate 1. Disconnect power to the cabinet. On stand-alone units, remove side and top panels. On stacked units, see Service Procedures for instructions on accessing the top panel.. Disconnect the black heater lead and the two RTD leads (brown and red) of the suspect plate from the master board. Measure resistance of the heater from the black lead to any terminal on the white terminal block. Resistance should be ohms. 3. Measure resistance across the brown and red RTD leads. Resistance must be within a range of ohms. Resistance at room temperature is approximately 107 ohms. See chart in Section 1 for resistance at different temperatures. If either resistance is incorrect, replace the heater plate. 7-7

178 UHC Display Meanings 1. SLOT TEMP HIGH OR SLOT TEMP LOW and no audible alarm. This is normal when the slot is changing temperature in association with a menu change.. LLLL means the RTD indicates a temperature below 50 F (10 C). Unit will automatically heat until temperature is above 50 F (10 C), then operate normally. 3. HHHH means RTD indicates the temperature is above 55 F (14 C), but below "Open" circuit resistance, which causes SENS ALARM. 4. UHC VERSION _ (version number will vary) appears for five seconds when the unit is turned on. This is normal. If the UHC VERSION _ stays in the display, the normal cause is 10 VAC is applied instead of the nominal 00 to 50 VAC. 7-8

179 UHC Wiring Diagram (Units Built Prior To 3/01) Exhaust Blowers Metal Oxide Varistor Fuse, 0A Fuse Block Fuse, 0A Power Line Filter Rocker Switch Fuse, 0A Metal Oxide Varistor Fuse Block Fuse, 0A Terminal Block Transformer Circuit Board Display Driver Wiring Harness 7-9

180 UHC Wiring Diagram (Units Built After 3/01) 18C 59C 0 L WH 10C F GND FH MOV SW L1 BK 101C 1 F 7C 16C FH 4 PR 8 6 F F MOV WHITE RTD COMMONS L GND BU GR/YW 31C PF L1 BR SB 30C TUV APPROVED UNITS ONLY 11C MF 19C 0C MF 13C 1C 1C 14C 63C TB TR 17C 1C C TOP SLOT 1 DISPLAY SLOT DISPLAY SLOT 3 DISPLAY SLOT 4 DISPLAY BOTTOM CB COLOR LEGEND BK = BLACK BR = BROWN BU = BLUE OR = ORANGE VI = VIOLET WH = WHITE YW = YELLOW GR = GREEN RTD'S RED 1 TOP RTD 1 TOP 1 BOTTOM RTD 1 BOTTOM TOP RTD TOP BOTTOM RTD BOTTOM 3 TOP RTD 3 TOP 3 BOTTOM RTD 3 BOTTOM 4 TOP RTD 4 TOP BROWN 4 BOTTOM RTD 4 BOTTOM 1C 0C +V LINE LINE 5C 1 TOP 1 BOTTOM TOP BOTTOM 3 TOP COMMON 3 BOTTOM -V 4 TOP DH BLACK 4 BOTTOM HEATERS DISPLAY DRIVER VI RD SLOT 1 RD FD TOP SLOT 1 DISPLAY YW BU VI RD DISPLAY DRIVER SLOT VI RD FD SLOT DISPLAY WH OR DISPLAY DRIVER SLOT 3 DISPLAY VI RD SLOT 3 RD FD YW BR RD DISPLAY DRIVER SLOT 4 VI RD FD SLOT 4 DISPLAY BOTTOM A 7-10

181 Sinbad Sinbad French Fry Dispenser The Sinbad was introduced in The unit, made initially in two configurations, holds about 39 pounds of frozen fries and dispenses them in programmable increments. The Sinbad frees restaurants of slacking baskets. It holds fries in an insulated hopper prior to dumping them in a basket for transfer to the fryer. The units employ a load cell, which measures out fries, a proximity switch, which detects the fry basket and Hall-effect sensors, which sense the motion of the dispensing chute door. A computer is used to program the dispensing weights. Dispense weights are programmable. The load chute must be in place when the batch weights are programmed. In operation, fries fall from the hopper into a chute, which is suspended from a load cell. The weight of the chute, motor and other components on the load cell are zeroed out when the unit is setup and only the weight of dispensed fries is detected as resistance. Batch weights are programmed into the computer, which allows it to dispense exact amounts. Original Sinbad unit. The health of the load cell is critical to the proper operation of a Sinbad. The unit ships with a bolt and shim locking the load cell in place. Although marked with a red tag for removal upon startup, malfunctions of the unit have often been attributed to failure to remove the bolt. Failure to remove the shipping bolt and shim in the load cell can lead to early service calls. 8-1

182 Sinbad The bolt, shim and red tag should be removed after the unit is installed. The unit will operate incorrectly if the bolt and shim are not removed. Other user related problems are often associated with programming and setting up the machine prior to programming. The gap between the load cell and the load cell arm (shown with arrow) should be.015" or about the thickness of a credit card when the protective bolt and shim are removed. 8-

183 Sinbad Deflector shield attaches here Hopper Sight Glass Dispensing Chute Controller ON/OFF Switch Proximity Sensor Basket Locator Rack Second generation Sinbad with smaller footprint. Run Switch Check Hopper Indicator Clean Switch Program Switch Batch Weight Selections 8-3

184 Sinbad Components A top down look into the Sinbad II. The cover over the dispense motor has been removed. Motor interface board Line Filter Transformer A Sinbad II with the back removed. 8-4

185 Sinbad 1VDC to computer 4VDC to dispense motor 4V LED 4VAC from transformer Motor logic cable from computer Motor interface board 4VDC to drum motor Motor Interface Indicator Lights Bright Red: (-) 4VDC, Door Closing Dim Red: (-) 1.5 VDC, Brake Voltage Bright Green: (+) 4VDC, Door Opening Dim Green: (+) 1.5 VDC, Brake Voltage An LED on the motor interface board changes color during operation, indicating the activity of the door. 8-5

186 Sinbad Dispense Motor and Hall-Effect Computer Data Cable J Pin 1, ground Pin Pin 3 Pin 4 Pin 5 During the dispensing of fries, the motions of the dispense motor are monitored by Hall-effect sensors. When the door on the dispense chute reaches the full open position, a flag on the dispense motor shaft is detected by a Halleffect sensor, which signals the controller. The controller reverses current to the motor, closing the door. When the door is fully closed, another Hall-effect sensor detects its position and signals the controller. Power is reduced to the dispense motor to approximately 1VDC, a braking current, which keeps the door closed. Computer Data Cable Analysis for the Dispensing Motor Condition Pin 5 Pin 4 Pin 3 Door Open +5 VDC +5 VDC 0V Door Closed 0V +5VDC +5VDC All readings are relative to Pin 1, ground. Hall Effect flag Electronic switch Permanent magnet When the flag on the dispense motor enters the Hall-effect sensor, it interrupts the magnetic field. A change in voltage is sensed by the computer. Magnetic field 1 VDC V-Sense 5VDC 8-6

187 Sinbad Hall-effect sensor, closed Sensor flag Hall-effect sensor, open Dispense motor Closed Sensor Open Sensor Placement of the Hall-effect senors on the dispense motor. 8-7

188 Sinbad Closed Hall-Effect Testing Hall-Effect V-Sense 1VDC Ground Condition Circuit measured Reading Door Open Between 4-5 1VDC Door Open Between 4-6 5VDC 3 1 J-8 Door Closed Between 1-1VDC Door Closed Between 1-3 5VDC V-Sense 1VDC Ground Open Hall-Effect Computer data plug. Drum Motor Testing Computer Data Cable Analysis for the Drum Motor Condition Circuit Reading Drum Motor On Pin 0V Drum Motor Off Pin +5VDC Readings are relative to Pin 1, ground. See J plug photo on page VDC Drum Motor 8-8

189 Sinbad Proximity Sensor The proximity sensor detects the presence of a basket under the load chute of the Sinbad. It signals the controller, which activates the dispense motor, dropping the fries into the basket. Testing Proximity Switch Condition Circuit measured Reading Switch Activated Between Pins 1-3 1VDC Switch Activated Between Pins -3 0V Proximity switch viewed from the front of the Sinbad. Switch Deactivated Between Pins V Switch Deactivated Between Pins -3 1VDC J5 Blue 1 Proximity Switch Brown Black 3 R The proximity switch, shown here in the interior of the sinbad cabinet, glows when it is activated. 8-9

190 Sinbad Load Cell Load cell arms are suspended from the load cell. The dispense motor and the dispense chute are suspended from the load cell arms. During startup, the load cell sees this weight as electrical resistance and registers the heft of the components as an empty dispense chute. When fries are added to the chute, the additional weight is seen as additional resistance, the weight of the batch being dispensed from the Sinbad. Load cell Compression strain gauge Strain gauge patch Tension strain gauge The load cell's interior components sense weight as resistance. The load cell arms, which the dispensing chute is suspended from. 8-10

191 Sinbad Drum Motor Drum motors on the early Sinbads lacked a depression near the base of the drive shaft. This depression (shown in the illustration at left) serves as a stress relief. Early units without the stress relief suffered from shaft failure. Stress relief Shaft without stress relief. 8-11

192 Sinbad Operation and Troubleshooting Place ON/OFF switch in ON position. Run switch Drum motor will run for two to three seconds. If drum motor continues to run, check 1VDC to computer. The computer is in stand-by mode. When placed in operation (by pressing the ON/OFF button on the computer) the dispense door opens and the unit begins a self-calibration. The batch selector lights flash sequentially. Calibration takes about 0 seconds. When complete, the dispense door closes and only the Run mode indicator is lit. If the unit fails to self-calibrate, or zero, the program and run switch alternately light. Probable causes include: Presence of shipping hardware. Improper gap between load cell and load cell brace. Use a credit card to check for proper gap. Batch selection switches Check impediments to the movement of the load cell. The computer or load cell is defective. A load cell simulator is available to isolate problems between the computer and the load cell. Placed in the load cell port of the computer, the device simulates a properly operating load cell. A unit exhibiting problems self zeroing, which properly zeros with the simulator in place, has a defective load cell. If the troubled unit still fails to self zero with the simulator in place, the problem is likely the computer. A load cell simulator is shown plugged into the load cell port of the Sinbad computer. 8-1

193 Sinbad Operation Fries are loaded into the hopper. A batch size is selected and the hopper motor turns and fries drop into the load chute until the weight requirement for the selected size is met. If the load cell is not satisfied within 30 seconds, the check hopper light flashes. Check for fries in the hopper. Check for a bridge of fries in the hopper, which prevents fries from dropping onto the drum. A proximity sensor detects a basket as it is placed under the load chute. A look into the hopper of a Sinbad. The load chute releases a batch of fries when the required weight is sensed by the load cell. Programming Batch Weight Selectors Turn ON/OFF switch ON. (Computer is in stand-by mode.) Press checkmark switch and then press quickly (within 5 seconds) the #1 button four times. The clean switch will blink. Press the clean switch. The unit will perform a selfcalibration. With a proper batch weight in place in the dispense chute, the door is opened when a basket is detected by the proximity switch. With the dispense chute s door closed, place a calibrated weight on the door. Press the batch selector switch for the weight on the dispense door. Repeat for additional weights. Press the checkmark to exit programming. 8-13

194 Sinbad Wiring Diagrams, Simplified NOTE: PROXIMITY SENSOR AND HALL EFFECT SENSORS SHOWN AS FUNCTIONAL SWITCHES FOR SIMPLICITY. (LOAD CELL CIRCUITRY NOT ILLUSTRATED FOR CLARITY.) MOTOR INTERFACE BOARD 1 DISPENSE MOTOR R/G LINE FILTER LINE VOLTAGE 4V R/G R LEDS J5 3 4VDC 1 4V FROM J 1 J1 DOOR OPEN HALL EFFECT SENSOR DOOR CLOSED HALL EFFECT SENSOR BOARD TRACINGS DRUM MOTOR 1 AND 4VDC 1VDC FROM J 1 SOURCE J4 J3 PROXIMITY SENSOR TO J4 TO J5 LOAD CELL R J FUSE (CE MODELS ONLY) 3 J3 3 1 J J J J7 PROCESSING CIRCUITS AND TRACINGS J1 CONTROLLER 1 1VDC SIMPLIFIED WIRING DIAGRAM (ORIGINAL DESIGN) 8-14

195 Sinbad Wiring Diagrams, Simplified (cont.) NOTE: PROXIMITY SENSOR AND HALL EFFECT SENSORS SHOWN AS FUNCTIONAL SWITCHES FOR SIMPLICITY. (LOAD CELL CIRCUITRY NOT ILLUSTRATED FOR CLARITY.) MOTOR INTERFACE BOARD 1 DISPENSE MOTOR LINE FILTER LINE VOLTAGE R/G 4V R/G R LEDS J5 3 4VDC 4V FROM J 1 1 J1 DOOR CLOSED HALL EFFECT SENSOR DOOR OPEN HALL EFFECT SENSOR BOARD TRACINGS DRUM MOTOR 1 AND 4VDC 1VDC FROM J 1 SOURCE J3 J4 PROXIMITY SENSOR TO J4 TO J5 LOAD CELL R J BLACK WHITE GREEN RED FUSE (CE MODELS ONLY) J8 3 1 J J J PROCESSING CIRCUITS AND TRACINGS J1 1 COMPUTER 1VDC SIMPLIFIED WIRING DIAGRAM (CURRENT PRODUCTION) 8-15

196 HLZ Heated Landing Zone The McDonald s Heated Landing Zone was designed to complement the restaurant s Made For You program. Prepared, wrapped sandwiches rest in the unit while a food order is completed. A combination of heated air and a hot plate warm the products. The temperature of the air heater and the heater plate are adjustable with the HLZ s computer. The default setting for the heater plate is 160 F (71 C). The default setting for the air heater is 0 F (104 C). The components of the HLZ are simple: heater plate, air heater, RTD, relays, blowers and a motor. A look at the flow of heated air around the HLZ Blower Assembly Heater plate Heater Plate Air Heater 9-1

197 HLZ Hi-limit (left above) and air thermocouple (bottom right above) and air RTD. HLZ with heater plate elevated. Solid state relays Transformer and fuses. Component specs: Plate heater resistance: 18-inch, 30 ohms ±15; -inch, 165 ohms ±15 Air heater resistance: 08V, ohms ±4; 40V, 9 ohms ±4 Plate heater range and default setting: F (60-8 C), default 160 F (71 C) Air heater range and default setting: F (76-8 C), default: 0 F (104 C) Plate heater relay: 5 amp Air heater relay: 18 amp 9-

198 HLZ The setpoint for the plate and air heater can be changed. With the unit off, press the checkmark button and then buttons 1,,3,3 in that sequence. Set will be displayed. Press 1 and an Up () or Down (3) button to adjust the heater plate temperature. Press 4 and an UP or Down button to adjust the air temperature. Press the checkmark to lock in the changes. The default setting for the heaters are: Air, 0 F; plate, 160 F. Air heater and heater plate test ports are on the left side of the unit. The meter is plugged into the air heater. The accuracy of the HLZ s temperature display can be checked using the ports on the front of the unit and a meter. A variance of 5 F between the meter and the unit s display is allowable. To change from Fahrenheit to Celsius display, unplug the power cord. Press and hold either temperature bulb button while plugging the unit back in to the wall socket. 9-3

199 HLZ Wiring Diagram /40V FUSE BLOCK 1V Load POWER CORD Hi-Limit HZ BLOWER 08V OPTION 00V/50 HZ PLATE THERMOCOUPLE (TYPE K) AIR THERMOCOUPLE (TYPE K) AIR HEAT RELAY (TOP) TEST PLUGS (BOTTOM) AIR RTD PLATE RTD PLATE RELAY HYPOT TEST POINT 9-4

200 VT McDonald s Vertical Toaster The Vertical Toaster was introduced in It produces toasted buns in just over 11 seconds and complements McDonald s Made For You program. The countertop-mounted unit consists of a cabinet, computer, heating element and a pair of conveyor assemblies. When the unit is turned on, a motor, which drives the conveyors, and an electric heating element or platen are energized. The platen heats to setpoint, about 540 F. Buns placed in the top of the toaster are carried downward, with the cut face of the bun passing over the heating element. Adjustable, spring-loaded pressure plates press the buns onto the platen as they pass through the toaster. The bun exits the toaster and falls onto a holding tray, which is heated with a separate heating element. Both the setpoint of the main heating element and the amount of pressure applied to the buns during toasting are adjustable. Safety Switch Relays Motor Heater Plate The toaster was originally equipped with a Molon motor (shown at left). It was replaced with a Saia motor (shown at right). 10-1

201 VT In troubleshooting a Vertical Toaster, areas of critical concern are chain tension and alignment, condition of drive sprockets, positioning of the motor, clearance around drive rollers and the condition of the bushings which support the drive rollers. The toaster is easily disassembled. The front cover lifts off, which provides access to the conveyor assemblies. Removing the left side of the toaster exposes the drive gear, relays and computer. The motor is accessible by removing the panel covering the bottom of the unit. The drive chain (right) on a Vertical Toaster, which needs ¼-inch slack, must run in a flat plane. The idler was pinned on later model toasters (left) to ensure the chain is properly tensioned. Use a ruler to set the drive sprockets in the same position when reassembling a toaster. In-store preventive maintenance usually involves cleaning and replacement of the belts, which are tensioned by spring-loaded plungers at the top of the assembly. Pressing down and back locks the upper rollers into down position and the belts can be removed. It is very important to clean the rollers of crumbs, sesame seeds and other particulate matter while the belts are removed. Rollers should be cleaned on a regular basis to prevent belt slippage and premature service calls. Removing the belts is also where most servicing begins, as it provides access to the conveyor assembly. 10-

202 VT Wiring Diagram Drive Motor For 40 Volt operation, connect to proper transformer tap. High-Limit Cover Lock-out Main Heater Probe Main Heater Cartridge Heater Tray Probe Tray Heater 1V SEC Transformer Power In GRN/YEL 1 LOAD 3+ INPUT 4 1 OUTPUT INPUT E

203 VT Simplified Schematic LINE VOLTAGE (08VAC) Transformer 1Volt Secondary COM NO Cover Interlock High Limit COMPUTER 1 7 Latch Relay Main Heater Probe Tray Heater Probe Main Heater Relay Tray Heater Relay Main Heater 1 Cartridge Heater 1 Tray Heater DriveMotor M 10-4

204 Cookers Pasta Cookers, Water Baths and Rethermalizers Spaghetti Magic Water Baths Rethermalizers 11-1

205 Cookers Spaghetti Magic The Frymaster Spaghetti Magic System (SMS) was introduced in 1973 and began with the 6SMS and 7SMS. Spaghetti Magic II 8SMS was introduced in mid-199 and provided customers with features such as: Digital Controls Auto-Fill Auto-Skim Auto-Water Level Control Single- or Three-Phase Systems Low-Water Sensor Spaghetti Magic II (8SMS) Other features include large 1-¼" (3 mm) drain which reduces the time needed to drain the system. Clogs, common in cookers with smaller drain openings, are virtually eliminated. The unit delivers 8 kw of power, meaning faster preheat and recovery performance, which saves time and allows the operator to turn pasta orders faster. Incoming water pressure must be monitored and inline reducers must be installed to reduce excessive pressure on systems with Auto-Fill. All valves used with Spaghetti Magic systems should be rated for hot water. A temperature probe monitors water temperature, and water level sensors (rod-type) protect the cookpot against minimum/maximum water levels (see illustration). Temperature Probe Rear Low-water sensor Front Temperature Probe High-water sensor Low-water sensor High-water sensor 11-

206 Cookers Wiring Diagram, 8SMS 11-3

207 Charts Electrical Formulas P I P X R P R P V I X R V I V R V I R P I X V V I X R P P I V R V = Voltage (Volts) I = Current (Amps) R= Resistance (Ohms) P = Power (Watts) MICRO = 1/1,000,000 (one millionth) e.g., microamps MILLI = 1/1,000 (one thousandth) e.g., millivolts KILO = 1000 X (one thousand times) e.g., kilowatts MEGA = 1,000,000 X (one million times) e.g., megaohms 1-1

208 Charts Pressure Conversion Table Inches PSI Inches mm bar mbar Pa kpa H O Hg Hg

209 Charts Pressure Conversion Table (cont.) Inches PSI Inches mm bar mbar Pa kpa H O Hg Hg Conversion Formulas PSI = Inches H O/7.71 PSI x 7.71 = Inches H O PSI x.036 = Inches Hg PSI x = Millimeters of Hg PSI x.0689 = Bars PSI x = Millibars PSI x 6895 = Pa PSI x = kpa 1-3

210 Charts Orifice Chart for Common Models ( Feet/0-609 Meters Above Sea Level Only) Model Gas Type BTUs Manifold Gas Pressure (Inches H O) Orifice Size (Drill/mm) Part Number J1C-MJ15 Natural 45, / Propane 45, / Butane 45, / Series Natural 110, / Propane 110, / Series Natural 1, / Propane 1, / Series Natural 1, / Propane 1, / CF/J3C Series Natural 150, / Propane 150, / G18- G4FB/FBR Natural 90, / Propane 90, / GF14 Series Natural 100, / Propane 100, / GF40 Series Natural 1, / Propane 1, / H50/H5 Series Natural 80, / Propane 80, / TCF Series Natural 11, / Propane 11, /

211 Charts Probe Resistance Chart For use with Minco or Hycal Thermistor Probes only (fryer equipped). Not for use with Spaghetti Magic System Probes. F OHMS C F OHMS C F OHMS C F OHMS C F OHMS C

212 Charts Probe Resistance Chart (cont.) For use with Minco or Hycal Thermistor Probes only (fryer equipped). Not for use with Spaghetti Magic System Probes. F OHMS C F OHMS C F OHMS C F OHMS C F OHMS C

213 Charts UHC RTD Probe Resistance Chart Sensor Temp ( F) R Sensor Sensor Temp ( C)

214 Charts Dean Electronic Thermostat Probe Resistance Charts Below are resistance charts applicable to Dean fryers equipped with electronic thermostat controllers. Old-style electronic thermostat resistance values are included to troubleshoot systems built prior to Current-style electronic thermostat resistance values are included to troubleshoot systems built after 1990 through current production. Old-Style Electronic Thermostat Systems (Probe wire color: One Black Wire; One White Wire) Current-Style Electronic Thermostat Systems (Probe wire color: Two Black Wires or Two Brown Wires) Celsius Fahrenheit Ohms (± 3%) Celsius Fahrenheit Ohms (± 3%)

215 Component Standard McDonald's Burger King Hardee's H.E. Gas Frypots Frymaster Domestic Warranty Summary Matrix * Unless specified otherwise, each component listed has a one year parts and labor warranty. This document applies to fryers purchased and used in the United States only. International warranty information is available on request. Through Apr 1998: Lifetime on pot. Manufactured after Apr 1998: 7 years parts and labor, incl. combustion chamber. Through Dec 1988: Second through the fifth year, 100% pot. Through Aug 1995: Lifetime After fifth year customer pays 50% of list price for pot assembly and on pot only. service agency receives published handling charge. After Aug 1995: ** Option of Jan 1989 to Oct 31, 1994: Lifetime on pot only. (No labor) lifetime on pot only, or seven After Oct 1994: Seven years parts and labor, including years parts and labor, combustion chamber. including combustion Starting July 001 includes probes, etc.,if necessitated by frypot chambers. change. Same as standard. H.E. Electric Frypots Lifetime on pot only. Through Dec 1988: Second through fifth year 100% pot. After fifth year, 50% of list price for pot assembly and service agency receives published handling charge. Jan 1989 through Dec 1994: Lifetime on pot. (No labor) After Dec 1994: Seven years parts and labor on pot. Second and third year parts only on elements. Lifetime on pot. EPRI units manufactured after Apr 1997: Three years parts and labor on elements and triacs. Bulletin 5-98) (See Same as standard. EF & Mac11/17 Electric Frypots Open Burner Gas Frypots (except GF Series) {after 1967} GF14 & GF 40 Frypots Lifetime on pot only. Second through third year, parts only on complete frypot assembly. After third year, parts only on bare pot. Stainless steel pots: second through fifth year, bare pot only. Second through the fifth year 100% pot only (bare pot). After the fifth year, customer pays 50% of list price for pot assembly and servicer receives published handling charge. Second through the fifth year 100% pot only (bare pot). After the fifth year, customer pays 50% of list price for pot assembly and servicer receives published handling charge. (1974 Mac50 has 100% pot only) Lifetime on pot only. Same as Standard. Lifetime on pot only. Second through fifth year, complete fryot assembly, parts only. After fifth year, parts only on bare pot. Tube Fryer Frypots Ten years, pot only. Ten years, pot only. Flatbottom Fryer Frypots Gas Pasta Cooker Pots Electric Pasta Cooker Pots Rethermalizer Pots Five years, pot only. Ten years, pot only. Through Dec 199: After Dec 199: Ten years, pot only. Five years, pot only. Fenwal Thermostat Second year, part only. Same as Standard. Same as Standard. Same as Standard. Computers Full price after first year. M100B, second and third year, $75 exchange price on parts only. M000 has nd years parts only, 3rd year $70 exchange. Second and third year, parts only. Same as Standard. Analog Controllers Price includes core charge after first year. Price includes core charge after first year. Same as Standard. Shortening/Oil Disposal Units UHC 90 days parts and labor. One year parts on pump only. One year parts only. One year parts only. Same as Standard. After July 7, 1998, two years parts and labor. * This document is only a summary. Warranty agreements are subject to change. For details, see the warranty statement provided with the equipment, or call Frymaster. ** Fryer rating plate indicates pot warranty as 7-YEAR or LIFETIME. Warranty Summary Matrix (Domestic).xls DEC 98

216 Frymaster, L.L.C Line Avenue, Shreveport, Louisiana USA Service Center (800) or (318) Printed in the United States of America English 1/0

Service Bulletin. (This bulletin and all other active bulletins are downloadable from our website at

Service Bulletin. (This bulletin and all other active bulletins are downloadable from our website at Bulletin 00--ABDE Service Bulletin (This bulletin and all other active bulletins are downloadable from our website at www.frymaster.com/parts_service.) Bulletin 00--ABDE Page of + Worksheets Date: 0//00

More information

TECHNICAL SERVICE DEPARTMENT Technical Service Bulletin LowNOx Commercial Gas Electronic Spark Ignition Sequence

TECHNICAL SERVICE DEPARTMENT Technical Service Bulletin LowNOx Commercial Gas Electronic Spark Ignition Sequence The Universal TM gas LowNOx series water heaters contain an electronic spark ignition system. The heater is connected to a 120VAC power source required by the transformer. The transformer steps down the

More information

47 SERIES GAS FRYERS PARTS LIST

47 SERIES GAS FRYERS PARTS LIST 8. Accessories 80-00 Basket, Twin 80-008 Basket Hanger (for Non-Basket Lift Fryers) 80-0 Basket Support Rack 8- Drain Extension Pipe (for use on units w/o built-in filtration systems) 80-009 Frypot Cleanout

More information

LOV-T FRYER COMMISSION AND DEMONSTRATION FORM 8700 LINE AVENUE SHREVEPORT, LA (800) Date

LOV-T FRYER COMMISSION AND DEMONSTRATION FORM 8700 LINE AVENUE SHREVEPORT, LA (800) Date LOV-T FRYER COMMISSION AND DEMONSTRATION FORM 8700 LINE AVENUE SHREVEPORT, LA 71106 (800) 551-8633 Date Store Technician Store # (if applicable) Service Agency Address Address City/State City/State Store

More information

6HUYLFH%XOOHWLQ. Bulletin: A Date: 06/04/99 SUBJECT: 1999 Prescribed Minimum Inventory of Frymaster Parts

6HUYLFH%XOOHWLQ. Bulletin: A Date: 06/04/99 SUBJECT: 1999 Prescribed Minimum Inventory of Frymaster Parts Bulletin A-28-99 6HUYLFH%XOOHWLQ Bulletin: A-28-99 Date: 06/04/99 SUBJECT: 1999 Prescribed Minimum Inventory of Frymaster Parts This bulletin supersedes bulletin A-02-94. Remove A-02-94 from your active

More information

BIGLA30-T/BIELA14-T Event Codes Quick Reference EXPLANATION CORRECTIVE ACTION PARTS TO CARRY ON SERVICE CALL

BIGLA30-T/BIELA14-T Event Codes Quick Reference EXPLANATION CORRECTIVE ACTION PARTS TO CARRY ON SERVICE CALL E13 TEMPERATURE PROBE FAILURE E16 HIGH LIMIT 1 EXCEEDED A. TEMP Probe reading out of range. B. Bad Connection. C. Problem with the temperatur e measuring circuitry including the probe. High limit temperature

More information

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power. Technical Information Gas Slide-In Range JGS8750ADB/S/W JGS8850ADB/Q/S/W Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this

More information

Modulating Furnace Information. Warning on Meter Setting - Read First!

Modulating Furnace Information. Warning on Meter Setting - Read First! Modulating Furnace Information Pressure Transducer Pressure DC Volts 0.00" 0.25 0.20" 0.63 0.25" 0.72 0.30" 0.82 0.35" 0.91 0.40" 1.00 0.45" 1.09 0.50" 1.19 0.55" 1.28 0.60" 1.38 0.65" 1.47 0.70" 1.56

More information

SERVICE MANUAL (INTERNATIONAL)

SERVICE MANUAL (INTERNATIONAL) SERVICE MANUAL (INTERNATIONAL) IMPINGER CONVEYOR OVENS MODEL 1433-000-E, 1434-000-E, 1456, 1457 WITH PUSH BUTTON CONTROLS Lincoln Foodservice Products, LLC 1111 North Hadley Road Fort Wayne, Indiana 46804

More information

BLOWER VACUUM SWITCH FAILED OPEN

BLOWER VACUUM SWITCH FAILED OPEN F1 F1 AC BLOWER VACUUM SWITCH FAILED CLOSED AC BLOWER VACUUM SWITCH FAILED CLOSED UHS If the blower vacuum switch is closed before blower start-up, the control module will not start the blower. Pre-check

More information

SAVANNAH EI & DELUXE SYSTEM TROUBLE SHOOTING GUIDE

SAVANNAH EI & DELUXE SYSTEM TROUBLE SHOOTING GUIDE SAVANNAH EI & DELUXE SYSTEM TROUBLE SHOOTING GUIDE ***PLEASE MAKE SURE TO LEARN THE REMOTE TO THE SYSTEM (REFER TO PG 6) AND CHECK THE BATTERIES FIRST!!! (American Flame AF-4000 Series) Intermittent Pilot

More information

(For serial numbers before w/ analog control)

(For serial numbers before w/ analog control) SEQUENCE OF OPERATIONS (For serial numbers before 2038616 w/ analog control) MODEL 1154-000-EA NAT. GAS 230 VAC 50 HZ. 1 PHASE MODEL 1155-000-EA LP GAS 230 VAC 50 HZ. 1 PHASE POWER SUPPLY Electrical power

More information

Service & Parts Manual

Service & Parts Manual Service & Parts Manual Frymaster, a member of the Commercial Food Equipment Service Association, recommends using CFESA Certified Technicians. Price: $.00 -Hour Service Hotline -800-55-86 89-58 MAY 00

More information

SERVICE MANUAL (INTERNATIONAL)

SERVICE MANUAL (INTERNATIONAL) SERVICE MANUAL (INTERNATIONAL) IMPINGER CONVEYOR OVEN MODEL 1100-000-A SERIES (SN 2038615 & BELOW) SERVICE MANUAL Lincoln Foodservice Products, LLC 1111 North Hadley Road Fort Wayne, Indiana 46804 United

More information

X4 Installation and Operation Manual - POWER FLAME INCORPORATED

X4 Installation and Operation Manual - POWER FLAME INCORPORATED 7.13.2 Set the burner s combustion air inlet damper to the approximate setting as shown in this manual for the desired firing rate. Also, verify that the correct main orifice is installed in the main orifice

More information

24-Hour Service Hotline JUNE 2005

24-Hour Service Hotline JUNE 2005 Service and Parts Manual Frymaster, a member of the Commercial Food Equipment Service Association, recommends using CFESA Certified Technicians. -Hour Service Hotline -00-- JUNE 00 *000* NOTICE IF, DURING

More information

E Series CE Approved Intermittent Pilot Ignition Control

E Series CE Approved Intermittent Pilot Ignition Control Installation Instructions Issue Date January 11, 2013 E Series CE Approved Intermittent Pilot Ignition Control Application The E Series CE Approved Intermittent Pilot Ignition Control is a safety control

More information

G72x Series Direct Spark Ignition Controls

G72x Series Direct Spark Ignition Controls Installation Sheets Manual 121 Gas Combustion Combination Controls and Systems Section G Technical Bulletin G72x Issue Date 1299 G72x Series Direct Spark Ignition Controls Figure 1: G72x Direct Spark Ignition

More information

SERVICE MANUAL (DOMESTIC)

SERVICE MANUAL (DOMESTIC) SERVICE MANUAL (DOMESTIC) IMPINGER CONVEYOR OVENS IMPINGER II - ADVANTAGE SERIES Lincoln Foodservice Products, LLC 1111 North Hadley Road Fort Wayne, Indiana 46804 United States of America Phone : (800)

More information

Solstice Electric Fryers SE Series Service Manual

Solstice Electric Fryers SE Series Service Manual Solstice Electric Fryers SE Series Service Manual L22-330 R1 (10/12) Notice In the event of problems or questions about your order, contact the Pitco Frialator factory at (603) 225-6684. In the event of

More information

Solstice and Solstice Supreme High Efficiency Gas Fryers SG/SSH Series Service Manual

Solstice and Solstice Supreme High Efficiency Gas Fryers SG/SSH Series Service Manual Solstice and Solstice Supreme High Efficiency Gas Fryers SG/SSH Series Service Manual Notice In the event of problems or questions about your order, contact the Pitco Frialator factory at (603) 225-6684.

More information

American Flame AF-4000 Series Intermittent Pilot Ignition System Trouble Shooting Guide

American Flame AF-4000 Series Intermittent Pilot Ignition System Trouble Shooting Guide American Flame AF-4000 Series Intermittent Pilot Ignition System Trouble Shooting Guide Contents IPI System Overview Pgs. 2-5 Module Audible Alerts Pgs. 6-7 Module Error Codes Pgs. 8-9 Extension Module

More information

SERVICE MANUAL (DOMESTIC & INTERNATIONAL)

SERVICE MANUAL (DOMESTIC & INTERNATIONAL) SERVICE MANUAL (DOMESTIC & INTERNATIONAL) DUAL TECHNOLOGY FINISHER MODEL 1960 & 1980 SERIES Lincoln Foodservice Products, LLC 1111 North Hadley Road Fort Wayne, Indiana 46804 United States of America Telephone:

More information

Frymaster FRYER. Model numbers BIELA14 & BIGLA30 LOV Low Oil Volume. Frymaster Fryer Model BIELA14 & BIGLA30 - LOV FR 3

Frymaster FRYER. Model numbers BIELA14 & BIGLA30 LOV Low Oil Volume. Frymaster Fryer Model BIELA14 & BIGLA30 - LOV FR 3 FRYER FR 3 Frymaster Model numbers BIELA14 & BIGLA30 LOV Low Oil Volume Daily maintenance tasks FR 3 D1 Cleaning fryer (Electric fryers only) Weekly maintenance tasks FR 3 W1 Clean Behind Fryer Bi-weekly

More information

Pro H50/55-Series Gas Fryers

Pro H50/55-Series Gas Fryers Pro H50/55-Series Gas Fryers Service and Parts Manual Frymaster, a member of the Commercial Food Equipment Service Association, recommends using CFESA Certified Technicians. 4-Hour Service Hotline -800-55-8633

More information

f i r e - p a r t s. c o m

f i r e - p a r t s. c o m System Overview: The primary components that are included in the SIT Proflame II GTMFS System Gas Valve Integrated Fireplace Control (IFC) SIT Pilot Assembly Transmitter (remote control) (GTMF model) 2

More information

100% OUTSIDE AIR MAKE-UP UNITS WITH DISCHARGE TEMPERATURE CONTROL & c.pco DIRECT DIGITAL CONTROL MODULE

100% OUTSIDE AIR MAKE-UP UNITS WITH DISCHARGE TEMPERATURE CONTROL & c.pco DIRECT DIGITAL CONTROL MODULE 100% OUTSIDE AIR MAKE-UP UNITS WITH DISCHARGE TEMPERATURE CONTROL & c.pco DIRECT DIGITAL CONTROL MODULE Start-up must be performed by a trained, experienced service person. The following general start-up

More information

G76x Direct Spark Ignition Controls

G76x Direct Spark Ignition Controls Installation Sheets Manual 121 Gas Combustion Combination Controls and Systems Section G Technical Bulletin G76x Issue Date 0400 G76x Direct Spark Ignition Controls Figure 1: G76x Direct Spark Ignition

More information

Frymaster FRYER. Model numbers BIEL14 & BIGL30 MANUAL LOV Low Oil Volume. Frymaster Fryer Model BIEL14 & BIGL30 MANUAL LOV FR 4

Frymaster FRYER. Model numbers BIEL14 & BIGL30 MANUAL LOV Low Oil Volume. Frymaster Fryer Model BIEL14 & BIGL30 MANUAL LOV FR 4 FRYER FR 4 Frymaster Model numbers BIEL14 & BIGL30 MANUAL LOV Low Oil Volume Daily maintenance tasks FR 4 D1 Cleaning fryer FR 4 D2 Maintenance Filter Weekly maintenance tasks FR 4 W1 Clean Behind Fryer

More information

ETP-5G & ETP-10G ECO-TECH PLUS GAS CONVECTION STEAMER PARTS AND SERVICE MANUAL

ETP-5G & ETP-10G ECO-TECH PLUS GAS CONVECTION STEAMER PARTS AND SERVICE MANUAL ETP-5G & ETP-10G ECO-TECH PLUS GAS CONVECTION STEAMER PARTS AND SERVICE MANUAL EFFECTIVE JANUARY 10, 2018 Superseding All Previous Parts Lists. The Company reserves the right to make substitution in the

More information

Hayward error codes and troubleshooting

Hayward error codes and troubleshooting http://waterheatertimer.org/intermatic-trippers-and-parts.html#pool 50 Hayward error codes and troubleshooting Section V. TROUBLESHOOTING http://www.hayward-pool.com/prd/in-ground-pool-manuals_10201_10551_14502_-1

More information

PAGE 1. TES Operation & Testing Guidelines: Tes Trouble shooting

PAGE 1. TES Operation & Testing Guidelines: Tes Trouble shooting PAGE 1 This document outlines questions to ask and components to check during TES troubleshooting. More detailed troubleshooting procedures are available in the TES Troubleshooting Guide. 1. Flow Light

More information

User Manual. T6 Tachometer. Online: Telephone: P.O. Box St. Petersburg, Florida 33736

User Manual. T6 Tachometer. Online:   Telephone: P.O. Box St. Petersburg, Florida 33736 User Manual T6 Tachometer Online: www.phareselectronics.com Telephone: 727-623-0894 P.O. Box 67251 St. Petersburg, Florida 33736 Table of Contents Overview... 1 Description... 1 Wiring... 1 T6 Tachometer

More information

MD10. Engine Controller. Installation and User Manual for the MD10 Engine Controller. Full Version

MD10. Engine Controller. Installation and User Manual for the MD10 Engine Controller. Full Version MD10 Engine Controller Installation and User Manual for the MD10 Engine Controller. Full Version File: MartinMD10rev1.4.doc May 16, 2002 2 READ MANUAL BEFORE INSTALLING UNIT Receipt of shipment and warranty

More information

PARTS & SERVICE MANUAL

PARTS & SERVICE MANUAL PARTS & SERVICE MANUAL Impinger Low Profile Advantage Digital Series (Electric) International Models MODELS: Please note that the model numbering system changed March 2007. The chart below shows the old

More information

Troubleshooting Manual

Troubleshooting Manual Troubleshooting Manual NOTICE: DO NOT DISCARD THIS MANUAL Models: LEGACY42-IFT PHOENIX42-IFT 1 TABLE OF CONTENTS A. Normal Operation...3 B. Wiring Diagram...4 C. Troubleshooting IntelliFire Touch...5 D.

More information

SERIES VAC Microprocessor Based Direct Spark Ignition Control FEATURES DESCRIPTION APPLICATIONS THE TOTAL SOLUTION FOR GAS IGNITION CONTROL

SERIES VAC Microprocessor Based Direct Spark Ignition Control FEATURES DESCRIPTION APPLICATIONS THE TOTAL SOLUTION FOR GAS IGNITION CONTROL SERIES 35-72 120 VAC Microprocessor Based Direct Spark Ignition Control 35.72.03 FEATURES Two Mounting Configurations Open Board With Stand-Off's - saves space and cost Potted - protection for washdown

More information

Series 20 Installation Instructions

Series 20 Installation Instructions Series 20 Installation Instructions Installation Instructions and field service checklist Read these instructions carefully. Failure to follow them could result in a fire or explosion causing property

More information

SERVICE MANUAL RRG SERIES HEAVY DUTY GAS GRIDDLE - NOTICE - ML ML ML RRG Shown

SERVICE MANUAL RRG SERIES HEAVY DUTY GAS GRIDDLE - NOTICE - ML ML ML RRG Shown SERVICE MANUAL RRG SERIES HEAVY DUTY GAS GRIDDLE 24RRG 36RRG 48RRG 60RRG ML-135339-00024 ML-135340-00036 ML-135341-00048 ML-135342-00060 24RRG Shown - NOTICE - This Manual is prepared for the use of trained

More information

Heater Troubleshooting Guides

Heater Troubleshooting Guides Heater Troubleshooting Guides Table Of Contents LRZE, 3 LRZM.. 4, 5 LXi.. 6, 7 LITE LD.. 8, 9 LITE LJ.. 10, 11 LITE LG. 1, 13 LX or LT STANDARD BURNERS 14, 15 LX or LT LOW x BURNERS. 16, 17 HiE 18, 19

More information

Applies to: Models F, B, FE, and BE with spark pilot

Applies to: Models F, B, FE, and BE with spark pilot Form CP-F/B-GC (11/17) R8 Obsoletes Form CP-F/B-GC (Version A.2) Gas Conversion Kits and Instructions Applies to: Models F, B, FE, and BE with spark pilot NOTE: Units with standing (match - lit) pilots

More information

Decathlon Series Gas Fryers

Decathlon Series Gas Fryers D, CFD, SCFD, FPD Models Decathlon Series Gas Fryers Service & Parts Manual NON-CE & Dean, a member of the Commercial Food Equipment Service Association, recommends using CFESA Certified Technicians. 07/2017

More information

This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly qualified.

This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly qualified. SERVICE MANUAL GRA SERIES GAS FRYERS WITH KLEENSCREEN PLUS FILTRATION SYSTEMS 2GR45AF KLEENSCREEN FRYER BATTERY MODEL ML MODEL ML 1GR45A 136647 3GR85AF 136655 1GR65A 136648 4GR45AF 136656 1GR85A 136649

More information

G821L/G822L Series Integrated Function Direct Spark Ignition Controls

G821L/G822L Series Integrated Function Direct Spark Ignition Controls Installation Sheets Manual 121 Gas Combustion Combination Controls and Systems Section G Technical Bulletin G821L/G822L Issue Date 1199 G821L/G822L Series Integrated Function Direct Spark Ignition Controls

More information

G600 Series Replacement Intermittent Pilot Ignition Controls

G600 Series Replacement Intermittent Pilot Ignition Controls Installation Instructions G600 Issue Date 0601 G600 Series ment Intermittent Pilot Ignition Controls Installation IMPORTANT: These instructions are intended as a guide for qualified personnel installing

More information

2.0 Burner Operating Parameters and Requirements

2.0 Burner Operating Parameters and Requirements ECLIPSE INFORMATION GUIDE Silicon Carbide Radiant Auto-Recupes Info 322 2/99 WARNING Handle silicon carbide tubes carefully. Do not drop them or hammer on them. Although they feature excellent mechanical

More information

FilterQuick FQGLA-T Gas Fryer

FilterQuick FQGLA-T Gas Fryer FilterQuick FQGLA-T Gas Fryer Service Manual This manual is updated as new information and models are released. Visit our website for the latest manual. FOR YOUR SAFETY Do Not Store or use gasoline or

More information

Troubleshooting Guide

Troubleshooting Guide Troubleshooting Guide This guide contains information for identifying and correcting issues that may arise. Applicable Models: i200 i200p i250 i250p i200x i201x i250x i251x iq251 iq251d iq751 iq1001 iq1501

More information

TROUBLESHOOTING GUIDE FOR HEAT PUMP BOOSTERS MODELS: HPB11, HPB15, & HPB22

TROUBLESHOOTING GUIDE FOR HEAT PUMP BOOSTERS MODELS: HPB11, HPB15, & HPB22 V3 TROUBLESHOOTING GUIDE FOR HEAT PUMP BOOSTERS MODELS: HPB11, HPB15, & HPB22 PREFACE This guide contains instructions for troubleshooting the Steffes Corporation room heating units: Models HPB 11, HPB

More information

Subject Underhood G System Error Codes and Symptoms System or Parts affected

Subject Underhood G System Error Codes and Symptoms System or Parts affected System or Parts affected Index Underhood70G (V90Gxxx) System or Parts affected... 1 Overview... 1 Identifying your System... 1 Retrieving Logged Error Messages... 1 Error Messages... 3 Error Message Table...

More information

High Efficiency Decathlon (HD) Series Gas Fryers * * Service & Parts Manual HDC, CFHDC, SCFHDC, FPHDC, LHDC, Y/KSCF/C/HC, BK1814

High Efficiency Decathlon (HD) Series Gas Fryers * * Service & Parts Manual HDC, CFHDC, SCFHDC, FPHDC, LHDC, Y/KSCF/C/HC, BK1814 HDC, CFHDC, SCFHDC, FPHDC, LHDC, Y/KSCF/C/HC, BK1814 (High Efficiency Common Cabinet Decathlon Fryers) Series Gas Fryers Service & Parts Manual High Efficiency Decathlon (HD) PRINTED IN THE UNITED STATES

More information

Frymaster FRYER. Model numbers BIELA14 & BIGLA30 LOV Low Oil Volume. Frymaster Fryer Model BIELA14 & BIGLA30 - LOV FR 3

Frymaster FRYER. Model numbers BIELA14 & BIGLA30 LOV Low Oil Volume. Frymaster Fryer Model BIELA14 & BIGLA30 - LOV FR 3 FRYER FR 3 Frymaster Model numbers BIELA14 & BIGLA30 LOV Low Oil Volume Daily maintenance tasks FR 3 D1 Cleaning fryer FR 3 D2 Maintenance Filter Weekly maintenance tasks FR 3 W1 Clean Behind Fryer Bi-weekly

More information

The Mark V Air/Fuel Controller - Technical Manual -

The Mark V Air/Fuel Controller - Technical Manual - Neutronics Enterprises Inc. The Mark V Air/Fuel Controller - Technical Manual - For Technical Information contact: Neutronics Enterprises Inc. 11421 West Bernardo Court. San Diego, CA. 92127 (858) 674-2250

More information

Replacement Parts List. Armor Condensing Water Heater. AW 151 thru 801. AWII-RP_ _ _Rev V

Replacement Parts List. Armor Condensing Water Heater. AW 151 thru 801. AWII-RP_ _ _Rev V Replacement Parts List PARTS & SERVICE DEPARTMENT Nashville, Tennessee 615-889-8900 Fax: 615-882-2918 parts_team@lochinvar.com www.lochinvar.com Armor Condensing Water Heater AW 151 thru 801 41 4 10 38

More information

Decathlon Series Gas Fryers

Decathlon Series Gas Fryers D0, D50, D60 & D80 Series Decathlon Series Gas Fryers Service & Parts Manual NON-CE & Dean, a member of the Commercial Food Equipment Service Association, recommends using CFESA Certified Technicians.

More information

Introduction. System Components

Introduction. System Components The Selectra SERIES 94 is for use with either direct or indirect gas fired units (furnaces, ovens, etc.). The system may be field installed on existing equipment or specified for new equipment installation.

More information

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power. Technical Information Electric Slide-In Range JES9750AAB/S/W JES9800AAB/Q/S/W JES9860AAB/S/W Due to possibility of personal injury or property damage, always contact an authorized technician for servicing

More information

Section 7 - Troubleshooting Guide

Section 7 - Troubleshooting Guide Section 7 - Troubleshooting Guide Section 7 - Troubleshooting Guide IMPORTANT While this troubleshooting guide provides information to aid in troubleshooting problems with the range, it does not contain

More information

High Efficiency Decathlon (HD) Series Gas Fryers * * Service & Parts Manual. Dean HD & SCFHD, Frymaster FPHD Models

High Efficiency Decathlon (HD) Series Gas Fryers * * Service & Parts Manual. Dean HD & SCFHD, Frymaster FPHD Models Dean HD & SCFHD, Frymaster FPHD Models (Includes HD63/Red Robin and Common Cabinetry) Series Gas Fryers Service & Parts Manual High Efficiency Decathlon (HD) PRINTED IN THE UNITED STATES OF AMERICA Dean,

More information

BG1600M Intermittent Pilot Ignition Control

BG1600M Intermittent Pilot Ignition Control Installation Instructions Issue Date March, 00 BG600M Intermittent Pilot Ignition Control Application The BG600M Intermittent Pilot Ignition Control is a safety control designed for indirect burner ignition

More information

36H Gas Control Product Information

36H Gas Control Product Information Single Stage 36H Two Stage 36H 36H Gas Control Product Information The 36H combination gas control valve is a versatile multifunction control designed to meet the requirements for use with intermittent

More information

2-Fryer Battery Wiring Restraint Kit Fryer Battery Wiring Restraint Kit Fryer Battery Wiring Restraint Kit

2-Fryer Battery Wiring Restraint Kit Fryer Battery Wiring Restraint Kit Fryer Battery Wiring Restraint Kit McDonald s Common Electric Enhancement Instructions IMPORTANT: Before beginning this work, ensure the coverage acknowledgement and prework checklist have been completed and signed by the owner/store manager

More information

CAUTION All safety information must be followed as provided in Service Manual

CAUTION All safety information must be followed as provided in Service Manual Double Oven Gas Range Technical Information MGR6875AD* Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit. Refer to Service

More information

36/60/160/260 L Series Gas Ranges

36/60/160/260 L Series Gas Ranges VULCAN L Series Gas Ranges 36/60/160/260 L Series Gas Ranges 34 THRU 41 1 5 51 52 26 42 THRU 49 55-56-57 2-3-4 33 31-32 25 29-30 27 15 PL-53065 14 13 12 28 24 23 22 21 20 19 18 16 17 52 11 10 9 8 7 6 632

More information

PRODUCT INFORMATION BULLETIN

PRODUCT INFORMATION BULLETIN 724-283-4681 724-283-5939 (fax) PRODUCT INFORMATION BULLETIN DESCRIPTION The, Model 10-7100 is one in a series of critical speed switches that monitor speed and detect motion in all types of machinery

More information

NSGV PT-1000 PORTABLE WELDING STATION I, O & M MANUAL

NSGV PT-1000 PORTABLE WELDING STATION I, O & M MANUAL APPLICATION OF DUST CONTROL EQUIPMENT: CAUTION - Warning Improper operation of dust control system may contribute to conditions in the work area or facility that could result in severe personal injury

More information

Troubleshooting Electronic Ignition

Troubleshooting Electronic Ignition Troubleshooting Electronic Ignition Bob Wise CVC Coaching This session is designed to provide a broad approach to troubleshooting electronic ignition systems. Various hearth electronic systems will be

More information

Replacement Parts List. Armor Condensing Water Heater. AW 151 thru 801. AWII-RP_ _ _Rev W

Replacement Parts List. Armor Condensing Water Heater. AW 151 thru 801. AWII-RP_ _ _Rev W Replacement Parts List PARTS & SERVICE DEPARTMENT Nashville, Tennessee 877-554-5544 Fax: 615-882-2918 parts_team@lochinvar.com www.lochinvar.com Armor Condensing Water Heater AW 151 thru 801 41 4 10 38

More information

MODEL ELC-12/40-CVM-D BATTERY CHARGER

MODEL ELC-12/40-CVM-D BATTERY CHARGER NATIONAL RAILWAY SUPPLY MODEL ELC-12/40-CVM-D BATTERY CHARGER Installing, Operating and Service Instructions for the ELC-12/40-CVM-D Solid State Charger PLEASE SAVE THESE IMPORTANT SAFETY AND OPERATING

More information

ELECTRICAL. Contents - Wiring Diagrams

ELECTRICAL. Contents - Wiring Diagrams Contents - Wiring Diagrams T-Bar (Floating Deck - Hydro)............................................ 8-16 T-Bar (Fixed Deck - Gear)............................................... 8-17 T-Bar (Fixed Deck

More information

PowerLevel s e r i e s

PowerLevel s e r i e s Owner s Manual Hydraulic Leveling CONTENTS Introduction Operation Control Panel Automatic Leveling Manual Leveling Retracting Jacks Remote Operation Care & Maintenance Troubleshooting Error Codes 1 2 2

More information

TC62D Installation Instructions

TC62D Installation Instructions TC62D Installation Instructions January 2007 This TC62D has a return water low temperature limit option. Using the low limit precludes using a room sensor because both sensors plug into the same port.

More information

INSTALLATION MANUAL ACL 5500 COMBUSTION SAFETY CONTROLLER

INSTALLATION MANUAL ACL 5500 COMBUSTION SAFETY CONTROLLER 5500 COMBUSTION SAFETY CONTROL INSTALLATION MANUAL FOR 5500 COMBUSTION SAFETY CONTROLLER WARNING This manual must be read in its entirety before installation of this controller. Installation must be performed

More information

SERVICE MANUAL. K Series Gas Kettles 2/3 Jacketed Stationary and Tilting - NOTICE - K40GL Shown

SERVICE MANUAL. K Series Gas Kettles 2/3 Jacketed Stationary and Tilting - NOTICE - K40GL Shown SERVICE MANUAL K Series Gas Kettles 2/3 Jacketed Stationary and Tilting K20GL K40GL K60GL K20GLT K40GLT K60GLT ML-136090 ML-136091 ML-136092 ML-136094 ML-136095 ML-136096 K40GL Shown - NOTICE - This Manual

More information

OnCommand Troubleshooting Guide Hayward Industries

OnCommand Troubleshooting Guide Hayward Industries OnCommand Troubleshooting Guide 2010 Hayward Industries Table of Contents Safety Precautions Page 1 Overview Pages 2-5 Software Troubleshooting Page 6 Local Display Pages 7-8 Relays Pages 9-10 Heaters

More information

Troubleshooting Guide

Troubleshooting Guide Troubleshooting Guide P/N 0153180 July 1999 P.O. Box 1160 St. Joseph, MO 64502-1160 1-800-255-0317 Fax: 816-360-9379 www.snorkelusa.com GENERAL INFORMATION This manual contains procedures for locating

More information

The Combustex Pilot Pro 800 Pilot Burner Assembly with Ignition & Flame Failure Monitor

The Combustex Pilot Pro 800 Pilot Burner Assembly with Ignition & Flame Failure Monitor OPERATIONS MANUAL The Combustex Pilot Pro 800 Pilot Burner Assembly with Ignition & Flame Failure Monitor Safe, reliable ignition and flame failure protection combined with a proven, completely self-powered

More information

Gas Convection Ovens UP TO

Gas Convection Ovens UP TO Gas Convection Ovens models SDG-, SDG-2 UP TO (serial#) 2052300xxxxx (date) 3-May-2 Phone (US & Canada): 800 427 6668 Fax (US & Canada): 800 36 7745 www.garland-group.com U_GO_PL_SUNFIRE_SDGSDG2 (Rev 8)

More information

ETP-5E & ETP-10E ECO-TECH PLUS ELECTRIC CONVECTION STEAMER PARTS AND SERVICE MANUAL

ETP-5E & ETP-10E ECO-TECH PLUS ELECTRIC CONVECTION STEAMER PARTS AND SERVICE MANUAL ETP-5E & ETP-10E ECO-TECH PLUS ELECTRIC CONVECTION STEAMER PARTS AND SERVICE MANUAL EFFECTIVE JANUARY 10, 2018 Superseding All Previous Parts Lists. The Company reserves the right to make substitution

More information

DESCRIPTION AND OPERATION

DESCRIPTION AND OPERATION Page 1 of 10 DESCRIPTION AND OPERATION AIR DELIVERY DESCRIPTION AND OPERATION The air delivery description and operation is divided into five areas: HVAC Control Components Air Speed Air Delivery Recirculation

More information

Oil Conserving Fryer (OCF30) GAS FRYERS * * Service & Parts Manual. 24-Hour Service Hotline /2017

Oil Conserving Fryer (OCF30) GAS FRYERS * * Service & Parts Manual. 24-Hour Service Hotline /2017 Oil Conserving Fryer (OCF30) GAS FRYERS Service & Parts Manual Frymaster, a member of the Commercial Food Equipment Service Association, recommends using CFESA Certified Technicians. www.frymaster.com

More information

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power. Technical Information Double Oven Dual Fuel Range JDR8895AAB/S/W Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

More information

Reproduction or other use of this Manual, without the express written consent of Vulcan, is prohibited.

Reproduction or other use of this Manual, without the express written consent of Vulcan, is prohibited. SERVICE MANUAL GAS BRAISING PANS (30 & 40 GALLON) VG30 VG40 ML-126847 ML-126848 VG40 SHOWN - NOTICE - This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by

More information

Troubleshooting Guide

Troubleshooting Guide Troubleshooting Guide IntelliFire Plus Ignition System *For authorized gas technicians use only. 9/15/2011 Hearth & Home Technologies Page1 Guide Table of Contents Introduction. 3 Tools and Instruments...

More information

H50 SERIES GAS FRYERS Exploded Parts Views

H50 SERIES GAS FRYERS Exploded Parts Views Exploded Parts Views INDEX ACCESSORIES... AIR PRESSURE SWITCH... ANCHOR STRAPS... BASKET HANGERS... BASKET LIFT ASSEMBLIES AND ASSOCIATED COMPONENTS... BASKET LIFT ROLLER BRACKETS AND ASSOCIATED COMPONENTS...

More information

Advantage-D. Operating Instructions and Maintenance Manual. Central Vacuum Systems (Expandable/Modular Models) (Ver.

Advantage-D. Operating Instructions and Maintenance Manual. Central Vacuum Systems (Expandable/Modular Models) (Ver. Advantage-D Series 3 Central Vacuum Systems (Expandable/Modular Models) (Ver. 8/05) Operating Instructions and Maintenance Manual DESCRIPTION The Becker Advantage-D and Advantage-L central vacuum systems

More information

Gas Conversion Kits and Instructions

Gas Conversion Kits and Instructions General and Warnings FOR YOUR SAFETY WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance. Do not touch any electrical switch; do not use any phone in your building. Leave the building immediately.

More information

INSTALLATION DATA 712 Series Pilot

INSTALLATION DATA 712 Series Pilot INSTALLATION DATA 712 Series Pilot Ignition Systems (FLAME RECTIFICATION) LOCKOUT MODEL 712-005 712-006 712-008 712-009 NON-LOCKOUT MODELS 712-005 712-016 712-017 712-019 712-022 CSA DESIGN CERTIFIED TO

More information

R & D SPECIALTIES ROTROL I USER'S MANUAL

R & D SPECIALTIES ROTROL I USER'S MANUAL R & D SPECIALTIES ROTROL I USER'S MANUAL TABLE OF CONTENTS INTRODUCTION...2 SPECIFICATIONS...2 CONTROLS AND INDICATORS...3 TIME DELAYS...4 INSTALLATION...5 SYSTEM OPERATION...9 TROUBLESHOOTING...13 OPTIONAL

More information

MT3270 & MT3255 SERIES CONVEYOR OVEN REPLACEMENT PARTS LIST

MT3270 & MT3255 SERIES CONVEYOR OVEN REPLACEMENT PARTS LIST APRIL 1999 MT3270 & MT3255 SERIES CONVEYOR OVEN REPLACEMENT PARTS LIST MT3255 A Division of G.S. Blodgett Corporation Superseding All Previous s Lists. The Company reserves the right to make substitution

More information

Section 3 Technical Information

Section 3 Technical Information Section 3 Technical Information In this Module: Engine identification Modes of operation Battery charging and heat manage operation Service and repair procedures Maintenance requirements Engine Identification

More information

Table of Contents. Parts Overview 1-3. Tools Needed 4. Recommended Service Parts 4. Gas Fire-Up Check List 5. Troubleshooting Flow Chart 6-9

Table of Contents. Parts Overview 1-3. Tools Needed 4. Recommended Service Parts 4. Gas Fire-Up Check List 5. Troubleshooting Flow Chart 6-9 GreenSmart TM 2 Parts Overview & Troubleshooting 6/13/2014 Table of Contents Section Page Number(s) Parts Overview 1-3 Tools Needed 4 Recommended Service Parts 4 Gas Fire-Up Check List 5 Troubleshooting

More information

Start Up Instructions for the Kiln, Page 1 of 2

Start Up Instructions for the Kiln, Page 1 of 2 Start Up Instructions for the Kiln, Page 1 of 2 1. Turn the Main Breaker at the right side of the panel on. 2. Press the orange [Control Power On] push button. It will light up when pressed. 3. If the

More information

SECOND GENERATION Use this guide with unit serial number prefix beginning with BWF using Terra Power separator.

SECOND GENERATION Use this guide with unit serial number prefix beginning with BWF using Terra Power separator. Technical Information and Diagnostic Guide for SECOND GENERATION Use this guide with unit serial number prefix beginning with BWF using Terra Power separator. This guide will assist you in becoming more

More information

General Description. Product Specification. Document Digital Temperature Interlock

General Description. Product Specification. Document Digital Temperature Interlock Document 474751 Installation, Operation and Maintenance Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the

More information

HP21 SERVICE SUPPLEMENT UNIT INFORMATION. TSC6 Two-Speed Control

HP21 SERVICE SUPPLEMENT UNIT INFORMATION. TSC6 Two-Speed Control SERVICE UNIT INFORMATION SUPPLEMENT HP21 Corp. 9426 L10 Litho U.S.A. All HP21-4 and -5 units (single and three phase) are equipped with a TSC6 two-speed control. The TSC6 (A14) two-speed control contains

More information

SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION

SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION Troubleshooting SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION WILL NOT RUN RUNS BUT WON'T SPRAY LOW SPRAY AT NOZZLE UNEVEN SPRAY PATTERN WILL NOT PRODUCE HOT WATER Pump switch in OFF position Place switch

More information

Spray Height Controller

Spray Height Controller Spray Height Controller UC5 SERVICE MANUAL 2012 Printed in Canada Copyright 2012 by NORAC Systems International Inc. Reorder P/N: UC5 SERVICE MANUAL 2012 Rev B NOTICE: NORAC Systems International Inc.

More information

TECHNICAL MANUAL WENDY'S RANGE MODEL: C0300HT AND C0301 HT

TECHNICAL MANUAL WENDY'S RANGE MODEL: C0300HT AND C0301 HT southbend TECHNICAL MANUAL A MIDDLEBY COMPANY WENDY'S RANGE MODEL: C0300HT AND C0301 HT This manual is intended for the use of Southbend Authorized Service Agencies and their associates. Service work should

More information

Order Number MOP C2. Microwave Oven

Order Number MOP C2. Microwave Oven Order Number MOP0107026C2 Microwave Oven 2 2001 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. 1 Inverter Warning The inverter

More information