Operators Manual Manual provides Installation and Operating Instructions Model MM1 Series Hood 1
General Description Halton s MM1 Series hood is designed to efficiently capture and remove the grease, smoke, and other effluents generated when cooking with pizza ovens. The hood is designed to mount close to the top of the pizza oven which provides an operational advantage of capturing the grease, smoke and other effluents directly above the pizza oven outlets. By localizing the capture area the hood can efficiently capture and effectively eliminate convective heat spillage to the store. The MM1 has a control panel that is designed to set the exhaust airflow based on the number of oven decks in operation to maximize energy savings potential. Exhaust airflow is monitored at all times via a T.A.B. (Test And Balance) Port installed in the hood plenum. A wiring harness connects between the pizza oven s blower motor control boxes and exhaust hood s control panel to report when the oven is on and how many oven decks are operating. Additionally, makeup air operation (on/off) is dictated by the control panel to maintain kitchen space air balance. An oven wiring harnesses and current switches to monitor the pizza ovens are included and are shipped inside the control panel for field installation. The control panel contains a terminal strip for field connection to the exhaust fan, the fire suppression system (if required) and the make up air fan (if used). All wiring must conform to local electrical and building codes. Field wiring instructions begin on page 19. The exhaust hood s control panel is recessed into the rear fascia panel of the hood, with status lights on the control panel face for troubleshooting purposes. The indicator lights show status for each oven deck, status of the exhaust fan and the makeup air unit. A manual override switch to drive the hood to full design airflow is incorporated as well. This switch should only be used if a problem occurs with the hoods control panel sensing the pizza oven s individual decks on/off status. Field wiring of the control panel interface with the pizza oven decks, using the oven wiring harness, should be performed before the oven/hood is placed in its final position, especially if the oven is to be positioned near a wall. Access to the pizza oven s blower motor control box for each deck is required to complete the oven wiring harness installation process. Make up air, if used, should operate any time the exhaust fan for the pizza hood is on to assure the proper air balance in the kitchen. The only exception to this is during a fire event in the pizza oven. In this case the exhaust fan will remain on and the make up air will shut off. Part of the Control Panel wiring is a provision to detect a dry contact (micro switch) closure in the fire suppression system when the fire suppression system activates. Two wires from the terminal strip contacts numbered 9A and 10 must be connected between the fire suppression system and the control panel for correct exhaust fan operation in the event of a fire event. Local fire codes typically require the exhaust fan to turn on during a fire event. See detailed field wiring instructions starting on page 19. Oven power (natural gas and electric) must be tied into the fire suppression dry contacts (micro switches) to ensure shutdown of cooking equipment in case of a fire. For electrical control, this is typically achieved by tying the oven power inlet to a shunt trip breaker connected to the fire 2
suppression dry contacts. For natural gas supply, an electronically actuated solenoid valve is tied to the fire suppression dry contacts. The control panel is only to be used with an EC (electronically commutated) equipped exhaust fan. Optional low voltage transformer must be factory installed when selecting the exhaust fan. For Installation and Control Wiring questions: call EVS at 586-779-0996. System Capabilities The hood system is ETL listed in both the United States and Canada for use with the Middleby- Marshall PS360G, 536, 540, 555, 570, 636, 640 and 670 model ovens, both gas and electric. The hood can be used with single, double or triple-stack configurations at the design exhaust airflows shown on the submittal drawings in Appendix 1. Optional side skirts (Model MMSS) can also be utilized with all oven configurations (single, double and triple stack) to reduce the required exhaust airflow. An optional eyebrow over the front loading window is available when desired or required by local codes. 3
System Overview Parts Identification 4
ITEMS SHIPPED INSIDE CONTROL PANEL 5
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Model MM1 INSTALLATION INSTRUCTIONS Suggested Sequence of Assembly 1) Uncrate hood and side skirts (if side skirts were ordered). Inspect the crating carefully. If there are signs of damage, call the freight carrier before uncrating the units. Uncrate the units carefully. ** Important note ** Do not leave units out in the weather for an extended time period. The protective PVC covering around the hood will become very difficult to remove if left exposed to the weather conditions for a long period of time. The hood will be hung from the ceiling support structure using ½ all thread rods and ½ - 13 nuts. Use the hanging brackets that are attached to the back of each hood pod section, 4 places, to anchor the all thread rods at the hood. For structural calculations assume the hood assembly weighs 500 lbs. The fascia panels between the pods are removable to facilitate assembly. Removing the front panel will allow easier access to the top of the hood and the ductwork assembly. Additional parts are shipped inside the control panel. Remove the shipping cover that protects the control panel face by removing the four screws that hold it in place. Save the four screws but the shipping cover may be discarded. Remove the four additional screws that hold the control panel face and inside you will find the oven wiring harness with an 8 pin connector on one end and three 2 pin connectors on the other end, three current switches in boxes and a wiring diagram in a packing list envelope. Do not lose these parts found inside the control panel; they are very important to the operation of the MM1 hood. The control panel will be replaced using all 8 screws after all field wiring is completed. 7
2. Add the oven wiring harness and current switches to interface between the oven s blower control boxes (one per oven deck) and the hood control panel. The harness interconnects each oven deck with the control panel on the MM1 hood. Adding this harness is easier to accomplish before the oven and hood are located near a wall or other obstruction that would complicate access to the blower control boxes. Oven Wiring Harness Installation Instructions (8 pin Connector) A. Ensure the power to the oven is disconnected prior to wiring the control panel and oven. B. Locate the control panel at the exhaust hood and wiring diagram for the system. Review the wiring diagram and all instructions prior to beginning the process. C. Install current switches on blower fan as shown in photos below. Locations vary among ovens; examples are shown for the 360G and 570/670. Remove necessary shrouding to access the blower fan wiring. The wire to the motor should be temporarily disconnected to allow the wire to pass through the provided current switch. After insertion of the wire through the switch, replace the wire to the terminal. Route the current switch wiring in such a manner that it is in a safe position away from any moving parts using zip ties as necessary and ensure that the Molex connector is easily accessible for connection. See examples below. Installation of Current Switch on 360G 8
Installation of Current Switch on 570/670 Alternate Installation of Current Switch on 570/670, wires routed into electrical access panel 9
Alternate 570/670 Installation of current switch D. Locate the wiring harness for connection between the oven and control panel. The harness consists of 3 pairs of cable to connect to each deck for operation status. For single and triple stack ovens, the remaining pairs will not be used and are to be stored in a neat, safe fashion in the lowest oven deck. E. It will be necessary to drill holes as shown in the photos below to allow for harness routing. Install grommets to avoid chafing of wires. Holes should 7/8 diameter to allow grommet insertion. Locations shown are approximate - red circles indicate hole location, yellow dashed line indicates proposed harness routing. Installed harness examples are shown as well. Note: On the 570/670 ovens if the wires are routed through the electrical access panel drilling the hole can be avoided. If wires are routed in this fashion ensure they are not pinched in any of the doors. See the alternate 570/670 examples below. 10
To Control Panel 360G Harness Routing, 2 Deck Example 360G Harness Installation Example 11
To Control Panel 670 Harness Routing, 3 Deck Example 670 Harness Installation Example 12
Alternate 570/670 Install Example with wires secured to thermostat line Alternate 570/670 Install Example Avoid attaching adhesive pads directly to areas that get hot during cooking. F. The 8 pin connector should be positioned near the control panel location with sufficient slack to allow for connection to the panel. Secure with fastener mount cable holders as necessary, see photo below. 13
Cable Holder Installation with Self Tapping Screw Example G. Route the 3 wire pairs from the harness along the paths shown and down into the first oven deck control cabinet. Each pair will be labeled to indicate appropriate oven deck. Locate Deck 1 2-pin connection and connect to the current switch. Ensure the all wires are safely installed using fastener mount cable holders and zip ties as necessary, see photo below. Current Switch Connection to Wiring Harness H. Repeat the process for the remaining oven decks. I. When an extra connection is present, safely store in the lowest cabinet, see photo below. The harness is designed to accommodate a triple stack oven. 14
Extra Plug Stored in Lowest Oven Cavity Example J. Upon installation of the harness and current switches, connect the 8 pin connection of the oven harness to the mating connector on the control panel. 3) Carefully position oven/hood combination in its final location. 4) Hang hood from ceiling support structure with all thread support rods (page 3). Check fit of side skirts to hood before completing attachment. 5) Assemble side skirts to oven/hood (page 16). Side skirts, when desired, may be installed on both pods or are sometimes only required on the intake end of the oven. See the job specific submittal drawings or cut sheets for guidance on the locations and number of the side skirts. Side skirts are installed, if desired, by fastening the upper edges of the side skirt to the lower edges of the hood pod end walls where holes are provided for this purpose. Plastic knob fasteners are included to attach the top of the side skirt to the bottom edge of the hood. Tabs are provided along the side skirt flange which runs down the oven body which allows the side skirt to be attached to the oven at predetermined points. These points are places where accessories are already fastened to the oven. Remove the screws holding the accessories in place and locate the side skirt tabs over the screw holes. The screw(s) are then reinstalled through the slotted tabs, and tightened to hold the side skirt in position. The rear side skirt may have holes to allow the photocell sensor to operate through the side skirt. Align these holes with the photocell feature when installing the rear side skirt. If the side skirts were ordered as an option but will not be used a jumper wire in the control panel must be removed from between terminals 1 and 2. Please see details; item seven on page 26 and wiring diagram page 29. 15
Side Skirt Attachment Side Skirt Knobs 16
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6) Assemble ductwork. The MM1 hood is ducted to the exhaust fan with NFPA 96 compliant ductwork. The hood is fabricated with a 14 X 14 exhaust collar. When the hood is used with 18
a triple stack oven the exhaust duct should be 14 X 14 to the exhaust fan. When the hood is used with a single or double stack oven the exhaust duct should be 11.5 X 11.5 to the exhaust fan. A transition from the 14 X 14 exhaust collar to 11.5 X 11.5 exhaust duct is included to make the connection to the exhaust ductwork. The exhaust collar and the transition have 1 flanges to facilitate connection to the exhaust ductwork. All duct connections must be 100% liquid tight welded per NFPA 96 requirements. The MM1 hood may also be connected to Metal Fab pre-engineered exhaust ducting. The hood would then be ordered with a 14 diameter round exhaust collar attached to the hood and comes with a 14 diameter by 9 tall round extension for the duct (Metal Fab part no. 14PSW9) and duct connector (Metal Fab part no. 14RHC, called a flange band in the following instructions) and a tube of caulk (P080 sealant) which is used in the assembly of the duct sections. Appendix 2 is an instruction sheet from Metal Fab which describes the assembly of the duct sections. These instructions must be followed carefully and completely. 7) Replace fascia panels if they have been removed. 8) Complete Ansul installation (page 22, Fire Suppression System) if required. A. Locate the hood control panel and remove and discard the shipping cover (keep the screws) and remove the control panel face plate. The control panel is located at the rear of the hood assembly, recessed into the rear fascia panel between the hood pods, see photo below. Control Panel Locations Wiring harness and Current switches shipped Inside Control Panel B. Field wire terminals F9A and F10 to an open set (when Ansul fire suppression system is cocked) of dry contacts on one of the Ansul system micro switches. The Ansul micro switches are found in the Ansul Automan Regulated Release assembly. 19
The contacts will close when the system discharges. This will send a signal to the control panel that the fire suppression system has actuated. Fire suppression systems may not be required in some jurisdictions. Skip this step if no fire suppression system for the ovens is in place. C. Terminals M98 and M99 are a normally open dry contact that must be field wired to complete a start circuit for a Make Up Air fan, if one is present. The dry contact (CR1) will close when a signal is sent to start the exhaust fan. Maximum voltage for this circuit is 24 volts. The control panel will close the normally open contacts of the 24 volt Control Relay 1 (located in the control panel) to which terminals M98 and M99 are connected, when the exhaust fan turns on. This circuit is optional dependent upon makeup air unit configuration. Please refer to site drawings to determine if required. The field wiring from Terminal Strip contacts M98 and M99 to the make up air start/stop contactor shall be 2 strands and 18 gauge minimum. D. Field wire terminals E34, E35 and SH (shield) to the exhaust fan control box on the exhaust fan. The wire from terminal E34 connects to the 0-10V termination on the exhaust fan control box, the wire from terminal E35 connects to the Common termination. At the exhaust fan, 0-10VDC and Common are noted as shown in the Exhaust Fan Control photo below. Terminate the wire shield to a chassis ground at the control panel. Suggested field installed connection for the exhaust fan is 2 strand, 18 gauge minimum, shielded, plenum rated cable. Terminal Strip 20
Exhaust Fan Control 21
9) Connect hood to 120V building power source. Connect a three wire 120V, 15A circuit to terminals L (Line), N (Neutral) and G (Ground) in the Power Supply Box. 10) Commission system (starting on page 25). Make sure grease filters and grease cups are installed in place before start-up. 11) Check airflow balance in store, and perform final inspection (page 26). For Installation and Control Wiring questions: call EVS at 586-779-0996. Downloadable manuals may be found at www.evsvent.com FIRE SUPPRESSION SYSTEM The MM1 hood may be ordered pre-piped with a fire suppression system. Local codes or a desire for enhanced fire safety may dictate the inclusion of fire protection in the hood. The hood, if ordered pre-piped, will come with the detector bracket and fire protection nozzles installed in the exhaust plenum of both hood pods to cover the requirements of the duct protection and exhaust plenum protection. The local Ansul fire system installer must supply the distribution piping, Ansul Automan and suppressant tanks, detector conduit and wire rope runs, fusible links, remote pull station, Ansulex liquid fire suppressant and all other supplies to complete the fire system installation. If appliance protection is required the local Ansul installer must also design and install the distribution piping and nozzles for this requirement. This work must be performed by the Ansul system installer. The side skirts on the rear of the hood require notches to be cut or holes to be punched to allow access for the appliance protection distribution piping. Notches would be used if the side skirts are to be removed for cleaning later. The illustrations below depict the typical layout for an MM1 hood fire system. The prepipe components supplied by Halton are shown in solid lines and the components supplied by others are shown in dashed lines. The complete fire system must satisfy the requirements of the National Fire Protection Association (NFPA), Underwriters Laboratories Standard 300 and all local codes and Authorities Having Jurisdiction. Please note: Maintain all clearances necessary for access, maintenance and cleaning when the oven is positioned for final assembly and installation of the fire suppression system. 22
MM1 Typical Fire Suppression System Isometric View 23
MM1 Typical Fire Suppression System Schematic 24
MM1 Field Commissioning Instructions Operation Notes 1. The Hood Control Panel is configured in such a manner that exhaust fan and makeup air unit will be on when any combination of ovens are powered. 2. In the event of a fire, the make up air fan start/stop signal will switch to off and exhaust fan will go to full speed. 3. When the manual override is activated, the exhaust fan will operate at full speed. Commissioning 1. Ensure that the oven wiring harness is installed, all field connections are made and power is applied to the control panel, exhaust fan and oven. 2. Locate the status indicator lights on the control panel face, see photo below. Control Panel Face 3. Turn on the top oven deck and verify that the Exhaust Fan, the Make Up Air and the Top Deck (Oven 1 Status) lights are illuminated. See the status designations in photo below. 25
Status Designation on Control Panel 4. Verify that the exhaust fan and the makeup air fan functions as they are intended to. 5. Repeat the process for the other oven decks. 6. When fire protection is required, consult with the Authority Having Jurisdiction on the required performance test. 7. If side skirts were ordered as an option but will not be used a jumper wire in the control panel circuitry must be removed. Remove the front cover of the control panel. Remove the wire jumper between terminals 1 and 2. This will initiate an override setting that will change the default exhaust fan airflows to a higher airflow setting for each of the three oven deck airflows. The higher airflows are necessary if the side skirts are not used. 26
AIR BALANCE 1) After installation is complete, it will be necessary to check and balance the airflows for the building. a. Note: Adjustments to the exhaust fan should not be made without consulting EVS. The control system varies the exhaust flow based on the number of decks in operation as determined by inputs from the oven wiring harness and T.A.B. Port. 2) To ensure proper hood performance, locate all makeup and supply air diffusers a minimum of 2 feet away from the exhaust hood perimeter. 3) To ensure that proper air balance is maintained, the makeup air unit shall be interlocked with the exhaust fan operation. a. Note: When a fire suppression system is installed, the makeup air unit is configured to be OFF in the event of a fire while the exhaust fan is to run at full design airflow. 4) After the system has been placed into service and the balancing of airflows has been accomplished, a final inspection should be made. Check for unusual noises, excess exhaust or supply rates and general operation of the system. HOOD MAINTENANCE 1) Clean the hood pods inside and out as needed with mild soap and water. Never use harsh or abrasive cleaners on Stainless Steel or Painted surfaces. 2) Clean the hoods grease filters and grease cups daily, first washing by hand, and then placing them into a dishwasher for cleaning or by steam cleaning them. Please Note: Handle the Grease filters carefully Standard Equipment 4 Aluminum Filters Exhaust Hood is Listed per UL710 Exposed Surfaces are 430 Stainless Steel Optional Equipment Side Skirts (Painted is Optional) Front Eyebrow Section Cool Front Modified End Panels 27
PARTS LIST Filter 12 x 16 Aluminum Baffle Halton part number - 10163 Filter - 12 x 20 Aluminum Baffle Halton part number 10164 14 x 14 to 11.5 x 11.5 transition Halton part number - 57443 9 Duct Collar Extension 14PSW9 (3AO) (Round Duct) Halton part number - 11461 Collar Connector 14PICRHC (3AO) (Round Duct) Halton part number 11462 28
Wiring Diagram 29
Wiring Diagram Detail Oven Wiring Harness, 8 Pin Connector 30
Wiring Diagram Detail Field wiring close up 31
Appendix 2 Pre-Fab Duct Installation 38
0-10VDC Common SHIELD PRESSURE TRANSMITTER 0-0.5"WC +24DC -24DC NOTE: 120V/1PH REQUIRED FOR CONTROL PANEL. LOW VOLTAGE WIRING (0-10VDC PLUS SHIELD) MUST BE BE FIELD INSTALLED FROM CONTROL PANEL TO THE EXHAUST FAN AND TERMINATED AT BOTH ENDS. 2 STRANDS, 18 GAUGE MINIMUM SHIELDED, PLENUM RATED CABLE IS SUGGESTED. MM1 EXHAUST HOOD CONSTRUCTED OF 18 GA. 430 STAINLESS STEEL WHERE EXPOSED INCLUDES (2) 12X16 AND (2) 12X20 ALUMINUM BAFFLE STYLE GREASE FILTERS LISTED PER UL710 XRUD-141-VG EXHAUST FAN ALUMINUM HOUSING BACKWARD INCLINED ALUMINUM WHEEL ALUMINUM CURB CAP WITH PRE-PUNCHED MOUNTING HOLES DRAIN TROUGH MOTOR ISOLATED ON SHOCK MOUNTS CORROSION RESISTANT FASTENERS Exhaust Duct 16.0 SQ 18.5 SQ Suggested Roof Opening TOP VIEW 28.9 Dia. 19.4 1.8 29.8 Hinged Base 22.0 43.4 24.0 Flat Roof Curb ANSUL FRONT VIEW EQUIPMENT SCHEDULE Direct Drive Upblast Centrifugal Roof Exhaust Fan MARK: EF-875 SP Accurex Volume Operating Weight Motor Information Qty Total SP FRPM Model (CFM) Power (hp) (Lb.) (in wg) Size (hp) V/C/P Encl: Motor Windings RPM FLA 1 1 XRUD-141-VG 875 1,261 0.29 126 0.75 115/60/1 OP 1550 1 13.8 1 UL/cUL 762 Listed - "Power Ventilators for Rest. Exh. Appliances" Switch, NEMA-3R, Toggle, Junction Box Mounted & Wired Hinged Base (Attached) Curb Seal (Attached) Grease Trap (PN 475538) OPTIONS AND ACCESSORIES 20.5 20.5 24.0 30.5 30.5 ISOMETRIC VIEW GPF ROOF CURB WELDED 18 GA. GALVANIZED CONSTRUCTION ROOF OPENING - THE MAXIMUM ROOF OPENING DIMENSION SHOULD NOT BE GREATER THAN THE ACTUAL TOP OUTSIDE DIMENSION MINUS 2". THE ROOF OPENING MAY NOT BE THE STRUCTURAL OPENING DIMENSION. NOTE: CONTROL PANEL ON REAR OF OVEN APPROXIMATELY 68" FROM WALL TO FRONT OF HOOD INSTALLATION SUSPEND HOOD 1/2" ABOVE OVEN HEIGHT USING HANGER RODS. MOVE OVEN INTO PLACE. MAKE FINAL EXHAUST DUCT CONNECTIONS. GENERAL NOTES: 1. DO NOT SCALE DRAWING, USE DIMENSIONS AS INDICATED. 2. IT IS THE RESPONSIBILITY OF THE INSTALLING CONTRACTOR TO OBTAIN ALL PERMITS AND APPROVALS FROM ALL STATE AND LOCAL OFFICIALS PRIOR TO PROCEEDING WITH INSTALLATION. THESE DRAWINGS ARE TO SERVE AS BASIC DESIGN ONLY AND ANY STATE OR LOCAL ORDINANCE WHICH IS MORE RESTRICTIVE SHALL PREVAIL. 3. IT IS THE RESPONSIBILITY OF THE INSTALLING CONTRACTOR TO CHECK BUILDING ACCESS AND FIELD CONDITIONS TO ALLOW FOR ADEQUATE CLEARANCES FOR THE EQUIPMENT TO BE BROUGHT IN AND INSTALLED. 4. AIR INTAKES MUST BE NO CLOSER THAN 10 FEET FROM ANY EXHAUST OR VENT OUTLET. 5. EXHAUST DUCTWORK TO BE CONSTRUCTED OF 16 GA. B.I. OR 18 GA STAINLESS STEEL AND CONTINUOUSLY WELDED. DUCT CLEAN OUTS SHALL BE PROVIDED AT EVERY CHANGE IN DIRECTION. INSTALLING CONTRACTOR SHALL VERIFY ANY REQUIREMENTS FOR INSULATION OF THE EXHAUST DUCT. 6. EXHAUST FAN(S) SHALL EXTEND A MINIMUM OF 40 INCHES ABOVE ROOF SURFACE AND BE PROPERLY FLASHED TO ADJOINING MATERIAL. 7. VERIFY ALL STRUCTURAL LOADS WITH ARCHITECT OF RECORD. 8. THESE DRAWINGS ARE TO SERVE AS A BASIC DESIGN ONLY AND ANY STATE OR LOCAL ORDINANCE WHICH IS MORE RESTRICTIVE SHALL PREVAIL. 9. IT IS THE RESPONSIBILITY OF THE OWNER/ARCHITECT TO ENSURE THE HOOD CLEARANCE FROM COMBUSTIBLES (AND NON OR LIMITED COMBUSTIBLES) IS IN COMPLIANCE WITH THE LATEST EDITION OF THE NATIONAL FIRE PROTECTION ASSOCIATION BULLETIN #96. 10. FIRE SUPPRESSION SYSTEM, IF REQUIRED, PROVIDED AND INSTALLED BY OTHERS. ROOF DECK EXHAUST DUCT INSULATION BY OTHERS IF REQUIRED FIELD DUCTWORK BY OTHERS COLLAR FACTORY MOUNTED HOOD TRANSITION DUCT PROJECT NAME: MIDDLEBY MARSHALL PS-570 / PS-670 DOUBLE DECK 1419 S. MILFORD ROAD HIGHLAND, MI 48357 P: 248-887-8600 F: 248-887-8611
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WARRANTY Halton Company warrants all MM1 hoods for a period of 12 months from date of shipment to be without defects in workmanship and material. Omissions or defects will be re- placed or repaired at Halton s option. Halton will not accept labor charges without prior approval. GENERAL INSTALLATION Upon receipt of the Halton hood, inspect it immediately for any shipping damage and notify carrier immediately if damage is found. Halton will not accept responsibility for any shipping damage, but will assist with getting a claim filed if needed. There are no instructions contained within this manual for installation or maintenance of fan packages. See appropriate manufacturer s manual for detailed instructions. It is the responsibility of the installing contractor to see that the system installation is completed in accordance with the project plans and specifications and that it meets all specific requirements of local code officials. The local authority having jurisdiction could overrule some of the installation details written in this manual. The installation shall be in accordance with NFPA-96. All electrical systems shall be installed following local and national codes. It is very important that the system be turned over to the owner in the best condition possible. The owner and/or operator should be instructed in the proper operation, care and maintenance of the system. If questions or complications should arise during the installation of the Halton hood that cannot be solved using the instructions, please contact EVS at 586-779-0996. For Warranty questions or issues please contact the Halton office at 1-800-442-5866. Continuous product improvement is a Halton policy, therefore specifications and design are subject to change without notice. For Warranty issues: 101 Industrial Drive Scottsville, KY 42164 800-442-5866 (800-4-HALTON) For Installation and Control Wiring questions: call EVS at 586-779-0996. 40