Service Manual. for the turbochef 3240 high h conveyor oven TurboChef Technologies, Inc.

Transcription

1 TM Service Mnul for the turbochef 3240 high h conveyor oven TurboChef Techlogies, Inc.

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3 For further informtion, cll TURBO or

4 The informtion contined in this mnul is importnt for the proper instlltion, use, mintennce, nd repir of this oven. Follow these procedures nd instructions to help ensure stisfctory bking results nd yers of trouble-free service. Errors descriptive, typogrphic, or pictoril re subject to correction. Specifictions re subject to chnge without tice. PLEASE CAREFULLY READ THIS MANUAL AND RETAIN IT FOR FUTURE REFERENCE.

5 Tble of Contents Sfety Instructions Importnt Sfety Informtion - Plese Red First Generl Sfety Informtion Preventing Oven Dmge Reducing Fire Risk Grounding Instructions Power Cord Replcement Specifictions nd Strtup Oven Overview 1 Certifictions 2 Dimensions 2 Oven Construction 2 Theory of Opertion 2 Power Specifictions 2 Ventiltion Requirements 3 Gs Derting 3 Gs Setup 3 Reding the Incoming Gs Pressure (Sttic) 3 Reding the Gs Pressure t 100% Flme 3 Reding the Gs Pressure t Minimum Flme 4 Reding the Operting Gs Pressure 4 Confirming Proper Closure of ll Tps 4 Clening Clening the Oven 5 Supplies nd Equipment 5 Dily Clening Procedures 5 Deep Clening Procedures 6-8 Stndrd Oven Opertion Oven Controls 9 Cooking Product 10 Editing Cooking Profile 12 Chnging Cooking Profile s Nme 12 Adjusting the Belt Speed 13 Adjusting the Temperture 13 Adjusting the Top nd Bottom Air 13 i i i ii ii ii tble of contents

6 Tble of contents Oven Modes Config Mode 15 Smrt Crd Screen 15 Updting the Firmwre 15 Accessing the Fult Count Screen 16 Accessing the Setup Mode 16 Accessing the Test Mode 16 Setup Mode 16 Chnging the Disply Temperture 16 Chnging the Displyed Belt Direction 16 Edit Option Screen 16 Chnging the Disply Lnguge 17 Chnging the Speker Volume 17 Info Screen 17 Test Mode 17 Accessing the Het Control Screen 18 Mnipulting the Top nd Bottom Blowers 18 Viewing the Sttus Indictors 18 Entering New Seril Number 19 Inititing Burn-In Test 20 Ersing ll Oven Settings 20 Clering the Fult Counts 20 Viewing the Seril Number 20 Oven Systems The Control System 21 Control Bord 21 Disply 21 EMI Filter 21 Fuses 21 High-Limit Thermostt 21 Idle Button 21 Keypd 21 Power Supply - 24VDC (Domestic) 21 Power Supply - 24VDC (Interntionl) 22 K3 Rely - Gs 22 K4 Rely - Ignition 22 RTD 23 Smrt Crd Reder 23 Speker 23 Thermostt - 120F (Close on Rise) 23 Wire Hrness 23 The Conveyor System 23 Ger Drive (Conveyor Motor) 23 Ger Drive (Conveyor Motor) Speed Controller (CMSC) 24

7 The Blower System 25 Blower Motor 25 Blower Motor Speed Controller (BMSC) 25 The Burner System 26 Air Pressure Switch 26 Burner Trnsformer 26 Combustion Blower 27 Modulting Gs Vlve 27 Ignition Module 27 Troubleshooting Overview of Troubleshooting 29 Fult Code Descriptions 29 Fult Code Troubleshooting 31 F1: Blower Fult 31 F2: Low Cook Temp 32 F3: No Flme 34 F5: CC Over Temp 36 F6: EC Over Temp 37 F7: RTD Fult 38 F8: High Limit Tripped 38 F9: Belt Fult 39 F10: Air Pressure Switch Fult 40 Non-Fult Code Troubleshooting 41 Cooling System Issue 41 Food Not Cooking Properly 42 No Disply 43 No Keypd Input 43 Schemtics Schemtic - US/Cnd 45 Control Piuts - US/Cnd 46 Controller Codes - US/Cnd 47 Schemtic - Austrli/New Zelnd 48 Control Piuts - Austrli/New Zelnd 49 Controller Codes - Austrli/New Zelnd 50 Appendix A - Replcing Oven Components Comprehensive Prt List A-1 - A-4 Replcing Items - No Pnel Removl Required A-6 Replcing Items - Right End Bell A-8 Replcing Items - Left End Bell A-12 Replcing Items - Burner Comprtment Cover A-14 tble of contents

8 i sfety instructions Importnt Sfety Informtion Plese Red First Improper instlltion, djustment, ltertion, service, or mintennce of this equipment cn cuse property dmge, injury, or deth. Thoroughly red the instlltion, operting, nd mintennce instructions before instlling or servicing this equipment. Strictly dhere to the following sfety informtion to reduce the risk of: - Dmge to the oven or property ner the oven - Personl injury including burns, fire, nd electric shock Generl Sfety Informtion This pplince is only for professionl use by qulified people. Use this pplince only for its intended uses s described in this mnul. This pplince shll be instlled s per AS Prt 1, nd ny locl codes nd sttutory regultions. See the instlltion mnul for instructions. Only qulified service personnel should service this pplince. Contct the nerest uthorized service fcility for exmintion, repir, or djustment. Alwys ensure the oven is disconnected from the power supply before servicing, repiring, or djusting ny components or prts. X Do t plce the cord ner heted surfces. X Do t store or use flmmble vpors or liquids (e.g., gsoline) in the vicinity of this pplince. X Do t llow children to use this pplince. X Do t plce corrosive chemicls or vpors in this pplince. It is t designed for industril or lbortory use. X Do t operte this pplince if it: -Hs dmged cord, plug, or gs hose -Is t working properly -Hs been dmged or dropped X Do t cover or block ny openings on this pplince. X Do t store this pplince outdoors. X Do t use this pplince ner wter. X Do t immerse this pplince or ny of its components (e.g., cord, plug, etc.) in wter. X Do t let the cord hng over the edge of tble or counter. X Do t work ner the pplince with long hir, loose clothing, or dngling jewelry. X DO NOT spry erosols in the vicinity of this pplince while it is in opertion. Preventing Oven Dmge TurboChef does t recommend periodic preventtive mintennce for this pplince, other thn regulr clening (see pges 5-8) nd servicing when fult code or other problem is present. When servicing this pplince, do t ter insultion to get to components. Rther, find the edge of the insultion nd remove the tpe tht holds it in plce. Clen the oven dily (pge 5). Clen the oven only with TurboChef pproved clener. X Do t clen with wter jet. X Do t slm or mishndle the oven window. X Do t frequently open nd close the window to check the cook sttus of the food. X Do t llow clening solution or wter to remin in the cook cvity longer thn necessry.

9 ii Reducing Fire Risk If mterils inside the oven ignite or if smoke is observed, 1. Keep the oven window closed. 2. Turn off the oven. 3. Disconnect the power cord or shut off power t the fuse/circuit breker pnel. Crefully ttend the oven if pper, plstic, or other combustible mterils re plced inside the oven to fcilitte cooking. X Do t leve items in the cook cvity when the oven is t in use. X Do t cook items wrpped in cling wrp or plstic film. X Do t overcook food. X Do t store (or use) gsoline or ny other flmmble vpors or liquids ner this pplince. X DO NOT spry erosols in the vicinity of this pplince while it is in opertion. If gs lek is ticed, X Do t ttempt to light or operte ny pplince. X Do t operte ny electronic device. Immeditely use n exterior phone to contct your gs supplier. If you cnt contct your gs supplier, contct your locl fire deprtment. Grounding Instructions Wrning: Improper grounding increses the risk of electric shock. This pplince must be grounded. The cord is equipped with grounding wire nd plug, which in the event of n electricl short circuit, reduce the risk of electric shock by providing n escpe wire for the electric current. The wire must be plugged into n outlet tht is properly instlled nd grounded. Consult qulified electricin or servicemn to determine whether or t the pplince is properly grounded. X Do t use n extension cord. If the power supply cord is too short, request qulified electricin or servicemn to instll n outlet ner the pplince. Power Cord Replcement To void potentil hzrds, only the mnufcturer, its service gent, or similrly-qulified person should replce dmged power cord. sfety instructions

10 iii sfety instructions This pge intentionlly left blnk.

11 Specifictions nd Strtup

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13 1 Overview Figures 1 nd 2. For prt numbers, see the ppendix. 1. Air filter, x 7.5 (298 mm x 190 mm) 2. Idle button (pge 21) 3. Left end bell (pge A-12) 4. Right end bell (pge A-8) 5. VFD disply nd keypd (pge 21 nd A-8) 6. Chin gurd 7. Conveyor belt 8. Window (optionl feture) 9. Hi-limit reset switch 10. Burner comprtment cover 11. Cooling fn tube 12. Air filter, 9 x 3.25 (228 mm x 83 mm) 13. Cooling fn tube ccess thumb screw 14. Burner comprtment cover ccess screws 15. Power cord nd plug (pge ii) 16. Rting plte Figure 1: Oven Overview, Front Figure 2: Oven Overview, Rer 12 specifictions nd strtup

14 2 Specifictions nd strtup Certifictions culus GAS FIRED LISTED, UL EPH, FCC, SAI Gs Sfety Certified AS4563 Certifiction No. GSCS20216 Dimensions With End Bells Closed - Width: (1832 mm) - Depth: w/ window: (1403 mm) - Depth: w/o window: (1342 mm) - Height: (483 mm) With End Bells Open - Width: (2223 mm) - Depth: w/ window: (1504 mm) - Depth: w/o window: (1443 mm) - Height: (483 mm) Wll Clernce - Bck: 0 (0 mm) - Left Side: 0 (0 mm) - Right Side: 0 (0mm) Oven Construction stinless steel exterior stinless steel interior - Powder coted steel legs Theory of Opertion The HhC3240 conveyor oven uses two independently-controlled blower motors to precisely distribute impinged ir into the cook cvity from the top nd bottom, creting highly-customizble cooking environment nd more throughput thn ny other oven its size. Power Specifictions Electricl North Americ EU / Asi Phse 1 Phse 1 Phse Voltge 208/240 VAC VAC Frequency 50/60 Hz 50/60 Hz Current Drw 8 Amp 8 Amp Supply 3 Wire (L+L+G) 3 Wire (L+L+G) Brekers 20 mp 16 mp Plug NEMA L620 IEC, PIN Gs - Volume: Mximum input per cvity 85k BTU (25kW [Gross]) - Min. Pressure (Nt, LP, I 2H, I 2E, I 2E+, I 2L, nd I 3P ): 6 W.C. (152.4 mm H 2 O / mb) - Mx. Pressure (Nt, LP, I 2H, I 2E, I 2E+, I 2L, nd I 3P ): 14 W.C. (350.6 mm H 2 O / mb) - Burner Pressure (Nt, LP, I 2H, I 2E, I 2E+, nd I 3P ): 3.5 W.C. (88.9 mm H 2 O / 8.71 mb) - Burner Pressure (I 2L ): 4.0 W.C. (101.6 mm H 2 O / 9.96 mb) Gs Type nd Applicble Country Supply Mnifold (mbar) (mbar) KW (gross) I 2H (20): AT, CH, CZ, DK, EE, ES, FI, GB, GR, IE, IS, IT, LT, LV, NO, PT, SE, SI, SK, HR & TR I 2L (25): NL I 2E (20): DE, LU & PL I 2E+ (20/25): FR, BE I 3P (37): BE, CH, CZ, ES, FR, GB, GR, IE, PT, SI, SK & PL I 3P (50): AT, BE, CH, CZ, DE, ES, FR, HU, NL & SK I 3P (30): HU, NO in (1832mm) 55.25in (1403mm) 52.85in (1342mm) 19.00in (483mm) (483mm) 19.00in (483mm) 87.53in (2223mm) 59.20in (1503mm) 56.80in (1443mm) 19.00in (483mm) (483mm) 19.00in (483mm) Figure 3: Dimensions

15 3 Ventiltion Requirements The TurboChef model HhC3240 conveyor oven must be operted underneth Type I or II hood. Alwys dhere to locl building nd gs codes. Locl code is the previling uthority for determining hood size nd CFM. Gs Derting Contct TurboChef with questions regrding elevtions nd necessry djustments. Gs Setup A digitl mmeter tht will red 0.10 WC (2.54 mmh 2 O, mb) must be used to properly set ll pressures. If the minimum pressure is t set correctly, the oven temperture will slowly rise in stnd-by mode nd eventully cuse cooking issues s well s trip the high limit temperture switch. Digitl mmeters (HHC-3001) re vilble through TurboChef; cll turbo ( ) for pricing nd vilbility. For informtion on ccessing the burner control, see pge 18. Reding the Incoming Gs Pressure (Sttic) 1. Ensure the oven nd ll the equipment in the piping system re off (pilot lights re cceptble). 2. Remove the burner comprtment cover nd cooling fn tube (refer to pge 1). 3. Remove the screw from the upper tp of the gs vlve. 4. Attch the digitl mmeter to the upper tp of the gs vlve (Figure 4). This tp will show the incoming pressure before the internl regultor of the gs vlve. 5. The pressures must be less thn 6 W.C. (152.4 mmh 2 O, mb) nd more thn 14 W.C. (350.6 mmh 2 O, mb). Otherwise, severe dmge to the equipment cn occur. 6. Rettch the screw to the upper tp of the gs vlve. Reding the Gs Pressure t 100% Flme 1. Ensure the oven is on. 2. Select cooking profile. 3. Remove the screw from the lower tp of the gs vlve. 4. During wrmup (both fn speeds re t 65% nd the oven is t 100% flme), ttch the mmeter to the lower tp of the gs vlve (Figure 4). 5. Verify tht the mximum operting pressure is 3.5 W.C. (88.9 mmh 2 O, 8.71 mb), unless operting I 2L gs. NOTE: I 2L gs requires pressure of 4 W.C. (101.6 mmh 2 O, 9.96 mb). 6. If t, use n 8mm nut driver to djust the 8mm nut (Figure 4) until the mmeter reds 3.5 W.C. (88.9 mmh 2 O, 8.71 mb), unless operting I 2L gs, s ted bove (turn clockwise to increse the pressure, counterclockwise to decrese the pressure). 7. Rettch the screw to the lower tp of the gs vlve. Figure 4: Gs Vlve Red/White Wires Upper Tp Lower Tp 8mm nut 5mm nut SPECIFICATIONS AND STARTUP

16 4 specifications AND STARTUP Reding the Gs Pressure t Minimum Flme 1. Remove either the red or white wire (Figure 4). 2. Attch the electric mmeter to the lower tp of the gs vlve (Figure 4). 3. Verify tht the minimum operting pressure is 0.10 W.C. (2.54 mmh 2 O, mb). 4. If t, use 5mm nut driver to djust the 5mm nut until the electric mmeter reds 0.10 W.C. (2.54 mmh 2 O, mb) (turn clockwise to increse the pressure, counterclockwise to decrese the pressure). 5. Reconnect the wire you removed. 6. If djustments were mde, re-check 100% flme pressure (see djcent procedure). Confirming Proper Closure of ll Tps Additionl testing my be required - lwys dhere to locl gs codes nd required methods of lekge testing in the immedite loction (refer to the regultions in force in the country in which the pplince is being instlled). The previling uthority is the locl code (or regultions). 1. Turn on the gs supply. 2. Spry ll gs connections with sop solution. -If growing sop bubbles re observed, lek -is present. Immeditely shut off the gs -supply. -If growth occurs, the connections re -intct. Turn off the gs supply. Reding the Operting Gs Pressure 1. Ensure the oven is on. 2. Select cooking profile (pge 10). 3. Remove the screw from the upper tp of the gs vlve. 4. During wrmup (both fn speeds re t 65% nd the oven is t 100% flme), ttch the digitl mmeter to the upper tp of the gs vlve (Figure 4). 5. Ensure tht the pressure is less thn 6 W.C. (152.4 mmh 2 O, mb)nd more thn 14 W.C. (350.6 mmh 2 O, mb). 6. Rettch the screw to the upper tp of the gs vlve.

17 Clening

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19 5 Clening the Oven Follow the steps below dily to help mintin your HhC oven. Supplies nd Equipment TurboChef-pproved oven clener, nylon scrub pd, clening towels, disposble gloves Dily Clening Procedures Step 1: Prepre the Oven -Press the bck/off key (pge 9) to turn the oven off. -Ensure cooling down hs completed. Step 1 CAUTION: Injury cn occur if oven is t llowed to cool properly before clening. DO NOT ttempt to clen until the cooling down messge hs disppered. Step 2: Remove nd Clen the End Trys -Remove both end trys. -Wsh nd rinse both end trys, then dry them with clen towel. Step 2 -Reinstll the end trys. Step 3: Remove nd Clen the Crumb Trys -Slide out nd remove both crumb trys. -Wsh nd rinse both crumb trys, then dry them with clen towel. Step 3 -Reinstll the crumb trys. Step 4: Remove nd Clen the Filters -Remove the filters, both of which re locted on the left side of the oven. -Wsh nd rinse both filters, then dry them with clen towel. Step 4 + If filter is torn or dmged, replce with new filter (pge A-2 for prt number). CAUTION: DO NOT operte the oven without the filters in plce. Step 5 Step 5: Clen the Oven Exterior -Wipe the oven exterior nd window with clen, dmp towel. -The oven is redy to turn on. clening

20 6 clening Deep Clening Procedures TurboChef recommends deep clening the oven once month (or more frequently depending on use) to ensure optiml performnce. Use only TurboChef-pproved clener. Using ny other clening product cn dmge criticl prts nd my void the oven s wrrnty. Step 1: Prepre the Oven -Press the bck/off key (pge 9) to turn the oven off. -Ensure cooling down hs completed. Step 1 CAUTION: Injury cn occur if oven is t llowed to cool properly before clening. DO NOT ttempt to clen until the cooling down messge hs disppered. Step 2: Remove nd Clen the End Trys -Remove both end trys. -Wsh nd rinse the end trys, then dry them with clen towel. Step 2 Step 3: Remove nd Clen the Crumb Trys -Slide out nd remove both crumb trys. -Wsh nd rinse both crumb trys, then dry them with clen towel. Step 3 Step 4: Remove nd Clen the Filters -Remove the filters, both of which re locted on the left side of the oven. -Wsh nd rinse both filters, then dry them with clen towel. + If filter is torn or dmged, replce with new filter (pge A-2 for prt number). Step 4 CAUTION: DO NOT operte the oven without the filters in plce. Step 5: Remove nd Clen the Chin Gurd -Remove the gurd tht covers the conveyor drive chin. -Wsh nd rinse the chin gurd, then dry it with clen towel. Step 5 Step 6 Step 6: Remove nd Clen the Upper End Pnels -Remove both upper end pnels from ech end of the oven. -Wsh nd rinse the upper end pnels, then dry them with clen towel. WARNING: Lock ll four csters before removing the conveyor, lower plenum ssembly, nd upper zzle plte. Physicl injury or dmge to equipment cn occur if the csters re t locked.

21 7 Step 7: Remove nd Clen the Conveyor (requires TWO people) Step 7 -Position one person t ech end of the conveyor. -Lift the conveyor ssembly up nd then towrds the left side of the oven until the conveyor drive chin hs eugh slck for removl. -Remove the conveyor drive chin. WARNING: Never ttempt to remove the conveyor with fewer thn 2 people. -Lift the conveyor nd push it through the right side of the oven for removl. -Wsh, rinse, nd dry the conveyor with clen towel. Step 8: Remove nd Clen the Lower End Pnels Step 8 Step 9 -Remove both lower end pnels from ech end of the oven. -Wsh nd rinse the lower end pnels, then dry them with clen towel. Step 9: Remove nd Clen the Upper Nozzle Plte -Remove the thumbscrew holding the upper zzle plte in plce on the right side -of the oven (locted between the two hndles). If the right side upper ir diverter is -incorrectly positioned in front of the lip of the upper zzle plte, remove the right -side upper ir diverter. -Spry the upper zzle plte with TurboChef Oven Clener to brek prt ny -hevy stins. Allow clener to penetrte stins for five minutes. -Scrub the upper zzle plte with nylon scrub pd. -Rinse the upper zzle plte with wter nd wipe it with clen, dmp towel. WARNING: Be sure to THOROUGHLY remove ll clener residue. Left Step 10 Right Step 10: Remove nd Clen the Right nd Left Lower Air Diverters -Remove the four thumbscrews from the right side lower ir diverter. -Remove the right side lower ir diverter. -Remove the two thumbscrews from the left side lower ir diverter. -Remove the left side lower ir diverter. -Wsh nd rinse the lower ir diverters, then dry them with clen towel. Step 11: Remove nd Clen the Lower Plenum Assembly Step 11 -Remove the lower plenum ssembly from the right side of the oven. -Spry the lower plenum ssembly with TurboChef Oven Clener to brek -prt ny hevy stins. Allow clener to penetrte stins for five minutes. -Scrub the lower plenum ssembly with nylon scrub pd. -Rinse the lower plenum ssembly with wter nd wipe it with clen, dmp towel. WARNING: Be sure to THOROUGHLY remove ll clener residue. clening

22 8 clening Step 12 Step 13 Step 14 Step 12: Clen the Oven Interior -Spry the bottom nd sides of the oven interior with TurboChef Oven Clener to brek prt ny hevy stins. Allow clener to penetrte stins for five minutes. -Scrub the oven interior with nylon scrub pd. -Wipe the oven interior with clen, dmp towel. WARNING: Be sure to THOROUGHLY remove ll clener residue. Step 13: Reinstll the Oven Components -Reinstll the lower plenum ssembly (if upper zzle plte ws clened, -reinstll w). -Reinstll the lower end pnels. -Reinstll the conveyor nd chin. -Reinstll the upper end pnels. -Reinstll the chin gurd, filters, nd crumb trys. Step 14: Clen the Oven Exterior -Wipe the oven exterior nd window with clen, dmp towel. -The oven is redy to turn on.

23 Stndrd Oven Opertion

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25 9 2 2 High h Conveyor by TurboChef TM BACK OFF 4 3 IDLE 5 EMERGENCY 6 STOP Figure 5: Oven Controls 1 Oven Controls Figure 5 1. Disply The disply shows current oven opertion nd/ or user progrmming informtion. 2. Soft Keys Six soft keys re on the oven controls, three on the left (L1, L2, L3, where L1 = top) nd three on the right (R1, R2, R3, where R1 = top). Press soft key to select the option/commnd tht is djcent to it on the screen. 3. Up nd Down Keys When the oven is in the oven off mode, use the up key to ccess the config mode (pge 15). Use the down key to ccess cooking profiles 5-8. When the oven is in test mode (pge 17), press the down key to ccess the second screen of options. Press the up key to go bck to the first pge. Press the up nd down keys to lso chnge option settings, where pplicble 4. Bck/Off Key Depending on the mode the oven is in, the bck/off key will return the oven to the previous screen or turn the oven off. 5. Idle Key The idle key ctivtes the idle mode (pge 12). 6. Emergency Stop Key The emergency stop key shuts down the conveyor nd burner, t which time the disply shows the belts hlted screen. From the belts hlted screen, press the bck/off key to turn the conveyor bck on nd send the oven to the cooling down mode (pge 11). DO NOT use the emergency stop key s generl on/off switch. stndrd oven opertion

26 10 stndrd oven opertion 1 BREAKFAST OVEN OFF DINNER 4 BREAKFAST BELT F 5:00 WARMUP OVEN TCC = 275F TOP AIR 60 % SET 475F 7 BREAKFAST DINNER COOLING DOWN OVEN TCC = 425F LUNCH DESSERT BELT R 3:20 BTM AIR 60 % LUNCH DESSERT 2 BREAKFAST DINNER 5:00 2:00 3:20 4:00 BELT SPEED 5 BREAKFAST BELT F 5:00 SOAKING TIME LEFT = 5:00 TOP AIR 80 % SET 475F 8 BREAKFAST BELT F 5:00 OVEN IDLE PRESS ANY KEY TOP AIR 30% SET 475F 2:00 2:30 3:00 2:45 LUNCH DESSERT BELT R 3:20 BTM AIR 100 % BELT R 3:20 BTM AIR 30% 3 6 BREAKFAST BELT F 5:00 LIGHTING OVEN TCC = 72F TOP AIR 40 % SET 475F BREAKFAST BELT F 5:00 TOP AIR 80 % COOKING SET 475F 9 LUNCH PROFILE 1 TOP PROFILE AIR 100% 3 BELT F COOLING TO DOWN LIGHT SET 2:00 OVEN TCC = 425F 400F BELT R 3:20 BTM AIR 40 % BELT R 3:20 BTM AIR 100 % BELT R 3:00 PROFILE 2 BTM PROFILE AIR 100% 4 Figure 6: Cooking Modes Cooking Product This section explins how to cook food product by describing the stndrd opertion modes through which the oven progresses (Figure 6). -mode 1: Oven Off -mode 2: Belt Speed Select -mode 3: Lighting -mode 4: Wrming -mode 5: Soking -mode 6: Cooking -mode 7: Cooling Down -mode 8: Idle -mode 9: Cool To Light NOTE: modes 8 nd 9 re t prt of stndrd cooking cycle. They only occur when the user intervenes s described on pge 12. Mode 1: Oven Off Mode during which ll cooking components re off nd the oven temperture hs receded below 150 F (66 C), but the disply nd keypd remin on. The user cn ccess cooking profiles 1-4 on this screen (1) or press the down key to ccess cooking profiles 5-8. Hppens When... -Power is supplied to the oven. -The oven completes mode 7. -The user presses the down key while-ccessing -The config mode (refer to pge 15 for more informtion). Goes To... -mode 2 when the user selects cooking profile (soft keys L1, L3, R1, or R3). -config mode when the user presses the up key. Mode 2: Belt Speed Select Mode during which the user selects the desired belt speed. NOTE: If different key is pressed, the oven will sk if you wish to continue or return to the belt speed select screen. If you select continue, the oven will t sve the belt speed. Hppens When... -The user selects cooking profile from mode 1 or 7.

27 11 Goes To... -mode 3 when the user selects belt speed nd the set cooking temperture is higher thn the oven s current temperture. -mode 9 when the user selects belt speed nd the set cooking temperture is lower thn the oven s current temperture. Hppens When... -mode 4 completes (within 5 F [3 C] of set point) Goes To... -mode 6 when soking completes. -mode 7 when the user presses the bck/off key -nd the oven is bove 150 F (66 C). Mode 3: Lighting Mode during which the ignition module pplies voltge to the sprk rod to strt the burner. Hppens When... -The user selects belt speed from mode 2. Goes To... -mode 4 when the control bord receives signl from the flme sensor tht flme is present. -mode 6 if the oven s current temperture is within 25 F (14 C) of the oven s set temperture. Mode 4: Wrming Mode during which the oven wrms to the preset cooking temperture defined by the cooking profile tht ws selected. Hppens When... -mode 3 successfully completes, nd the oven s temperture t the beginning of wrmup ws t within (less thn) 25 F (14 C) of the oven s set temperture. Goes To... -mode 5 once the oven hs reched the temperture defined by the selected cooking profile. -mode 7 when the user presses the bck/off key -nd the oven is bove 150 F (66 C). Mode 5: Soking Mode during which the oven hs completed wrming up nd utomticlly llows n dditionl five minutes for the oven cvity surfces to wrm. Mode 6: Cooking Mode during which the oven is redy to cook. The user cn plce food on the conveyor to cook, or edit cook settings if the full edit or flex option is enbled. See pge 12 for more informtion on full edit nd flex options. Hppens When... -mode 5 completes. -mode 3 completes, if the oven s current temperture is within 25 F (14 C) of the oven s set temperture. -The user presses the idle key, up key, down key, or ny soft key during mode 8. Goes To... -mode 7 when the user presses the bck/off key. -mode 8 when the user presses the idle key. -mode 4 if the temperture drops 25 F (14 C) or more below the set point. -mode 9 if temperture rises 25 F (14 C) or more bove the set point. Mode 7: Cooling Down Mode during which the burner ssembly shuts off to llow the oven to cool. Hppens When... -The user presses the bck/off key from modes 3 or 4 (nd the oven temperture is bove 150 F [66 C]), or from modes 5, 6, 8, or 9. Goes To... -mode 1 when the oven temperture hs receded below 150 F (66 C). -mode 2 when the user selects cooking profile. stndrd oven opertion

28 12 stndrd oven opertion Mode 8: Idle Mode during which both blowers re reduced to 30% to sve power. All other oven components remin the sme. Hppens When... -The user presses the idle key from mode 6. Goes To... -mode 6 when the user presses the idle key, up key, down key, or ny soft key. -mode 7 when the user presses the bck/off key. Mode 9: Cool to Light Mode during which the burner ssembly shuts off to llow the oven to cool to the set cooking temperture defined by the profile tht ws selected. Hppens When... -The user selects cooking profile from mode 1 or 7 tht hs set cooking temperture lower thn the oven s current temperture. Goes To... -mode 3 when the oven hs cooled to the set temperture of the current cooking profile. -mode 7 when the user presses the bck/off key. Editing Cooking Profile To edit cooking profile, the oven must be in the cooking mode, nd the full edit or flex option must be enbled for ech option you wnt to edit. For more informtion on selecting between full edit, rigid, nd flex options for ech editble setting, see Edit Modes Select Screen on pge 16. When the rigid option is enbled for given setting, the soft key djcent to tht setting (Figure 7) is disbled nd menu editing is llowed. When the full edit option is enbled for given setting, tht setting is fully customizble nd chnges re sved once the oven returns to the oven off or cooling down mode. When the flex option is enbled for given setting, tht setting is customizble within flex option limittions (s described in the following sections), nd chnges will reset when the oven returns to the oven off or cooling down mode. NOTE: The flex option does t pply to editing profile nme. This section ssumes tht the full edit option is enbled (except where otherwise ted) nd tht cooking profile nd belt speed hve been selected. Chnging Cooking Profile s Nme The full edit option must be enbled to chnge cooking profile s nme. 1. From the cooking screen (Figure 7), press L1 to ccess the nme chnge screen (Figure 8). 2. Chnge the nme of the cooking profile. - The up key moves up through the vilble chrcters. e.g. A,B,C - The down key moves down through the vilble chrcters e.g. A,+,-,,9,8, - INS (L1) inserts spce. L1 L2 PROFILE 1 BELT F 5:00 COOKING TOP AIR 80 % SET 475F R1 R2 L1 L2 INS DEL <--- [PROFILE 1 ] ---> R1 R2 L3 BELT R 3:20 BTM AIR 100 % R3 L3 CANCEL SAVE R3 Figure 7: Cooking Screen Figure 8: Nme Chnge Screen

29 13 - DEL (R1) deletes the selected chrcter > (R1) moves the cursor to the right. The cursor strts t the fr left chrcter. If ---> is pressed when the cursor is on the fr right chrcter, the cursor moves to the fr left chrcter. - <--- (L1) moves the cursor to the left. The cursor strts t the fr left chrcter. If <--- is pressed when the cursor is on the fr left chrcter, the cursor moves to the fr right chrcter. 3. Press sve (R3) to sve the chnges or cncel (L3) to cncel ny chnges. Adjusting the Belt Speed Figure 7 The High h Conveyor Oven cn ccommodte either one or two conveyor belts. The oven will utomticlly detect the number of conveyor belts instlled nd disply the option to chnge the speed of ech conveyor belt independently. 1. Press the soft key djcent to the conveyor belt you wish to djust (press L2 for the front belt [Belt F] or L3 for the rer belt [Belt R]). 2. Adjust the time it tkes for the conveyor belt to completely cycle through the oven. - The up key increses bke time in 5-second increments. + Flex option enbled: the user cn only increse the time up to n dditionl 15 seconds. - The down key decreses bke time in 5-second increments. +Flex option enbled: the user cnt decrese the time by more thn 15 seconds. 3. Press the soft key djcent to the belt tht ws djusted to exit the belt speed controls. Adjusting the Temperture Figure 7 1. Press R2 to ccess the temperture controls. 2. Adjust the temperture. - Press the up key to increse the temperture in 5 F/5 C increments. +Flex option enbled: the user cn only increse the temperture up to n dditionl 10 F/5 C. - Press the down key to decrese the temperture in 5 F/ 5C increments. +Flex option enbled: the user cnt decrese the temperture by more thn 10 F/5 C. 3. Press R2 gin to exit the temperture controls. Adjusting the Top nd Bottom Air Figure 7 1. Press R1 to ccess the top ir controls, or R3 to ccess the bottom ir controls. 2. Adjust the ir speed. - Press the up key to increse the ir speed in 5% increments up to 100%. +Flex option enbled: the user cn only increse the ir speed by up to n dditionl 15%. - Press the down key to decrese the ir speed in 5% increments down to 30%. +Flex option enbled: the user cnt decrese the ir speed by more thn 15%. - Press the soft key gin to exit the ir controls. stndrd oven opertion

30 14 stndrd oven opertion This pge intentionlly left blnk.

31 Oven Modes

32

33 15 The Config Mode The config mode (Figure 9) serves four min purposes: 1. To ccess the smrt crd screen. 2. To ccess the fult count screen. 3. To ccess the setup mode. 4. To ccess the test mode. To ccess the config mode, press the up key from the oven off mode. Smrt Crd Screen The smrt crd screen llows the user to -Lod menu from smrt crd to oven. -Sve menu from oven to smrt crd. To lod or sve menu, 1. Press L3 (Figure 9) to ccess the smrt crd screen (Figure 10). 2. Insert smrt crd into the smrt crd slot (Figures 11 nd 12), with the gold chip fcing the inside of the oven. 3. Lod or sve menu. - Press R1 to lod menu from the smrt crd to the oven (Figure 10). - Press R2 to sve menu from the oven to the smrt crd (Figure 10). Updting the Firmwre From the oven off screen, 1. Insert the gry smrt crd (see Figure 11) with the gold chip fcing the inside of the oven. If multiple smrt crds re required, they will be lbeled in sequence - ensure the correct sequence is followed. 2. From the cooling down or oven off mode, press nd hold the idle key until the oven resets (pproximtely 5 seconds). The disply will go blnk until the uplod is complete. 3. When the oven beeps one long high tone, the lod ws successful. If second crd ws provided, insert it. 4. When the oven restrts nd the disply turns on, the updte is complete. Remove the smrt crd. NOTE: If the updte is unsuccessful, the disply will remin off nd the oven will beep one long, low tone. If this occurs, repet the bove procedure. If the updte fils multiple times, smrt crd my be dmged. Contct TurboChef to obtin new smrt crd. L1 L2 L3 SETUP FAULTS CONFIG MENU SMARTCARD TEST MODE R1 R2 R3 Figure 9: Config Mode Figure 11 Smrt Crd slot loction L1 L2 L3 LOAD FROM CARD SMARTCARD SAVE TO CARD R1 R2 R3 L1 L2 L3 INSERT SMART CARD PRESS [BACK] TO EXIT R1 R2 R3 oven modes Figure 10: Smrt Crd Screen Figure 12: Insert Smrt Crd Screen

34 16 oven modes Accessing the Fult Count Screen Refer to pge 29 for fult descriptions. From the config mode (Figure 9, pge 15), press R1 to ccess the fult count screen (Figure 13). The oven will disply the number of fults tht hve occurred since the oven fult counts were lst clered (pge 20), the oven s softwre ws lst updted (pge 15), or the oven ws lst returned to the mnufcturer s defult settings (pge 20). Accessing the Setup Mode From the config mode (Figure 9, pge 15), press L1 to ccess the setup mode. The setup mode llows the user to customize severl oven settings - see below for more detils. Accessing the Test Mode From the config mode (Figure 9, pge 15), press R3 to ccess the test mode. The test mode gives the service gent the bility to digse oven problems nd perform other service relted tsks. See pge 17 for more informtion on the test mode. Setup Mode Figure 14 The setup mode serves four min purposes: 1. To chnge the disply temperture. 2. To ccess the edit option screen. 3. To chnge the disply lnguge. 4. To ccess the info screen. To ccess the setup mode, press the up key from the oven off or cooling down mode (to ccess the config mode), nd then press L1. L1 L2 L3 FAULT F1: 0 F2: 0 F3: 0 F4: 0 F5: 0 Figure 13: Fult Counts Screen COUNTS F6: 0 F7: 0 F8: 0 F9: 0 F10: 0 R1 R2 R3 Chnging the Disply Temperture The oven cn disply the temperture in either Celsius or Fhrenheit units. To chnge the disply temperture, press L1 in setup mode (Figure 14). Chnging the Displyed Belt Direction Press L2 (figure 14) to chnge wht the oven displys s the belt direction, either right to left or left to right. NOTE: Chnging this option does t ffect the opertion of the belts. To chnge the belt direction, service gent must modify the internl wiring. For more informtion, plese contct customer service t turbo (or ). Edit Option Screen The edit options screen (Figure 16) llows the user to switch between full edit, rigid, nd flex options for profile nme, belt speed, temperture, nd % ir. For more informtion on the different edit options, see Editing Cooking Profile on pge 12. To ccess the edit options screen, 1. Press L3 (Figure 14) to ccess the pssword screen (Figure 15). 2. Input the pssword by pressing the soft keys djcent to the numbers. To chnge the edit option (Figure 16), - Press L1 to select full edit or rigid for the profile nme. - Press L3 to select full edit, rigid, or flex for the belt speed. L1 1 4 R1 L2 L3 Figure 15: Pssword Screen 2 3 ENTER PASSWORD <6633> 5 6 R2 R3 L1 L2 DEGS F BELT L-R SETUP MENU ENGLISH VOL 3 R1 R2 L1 L2 NAME: FULL EDIT MODES SELECT TEMP: FLEX R1 R2 L3 EDIT/RIGID/FLEX INFO R3 L3 BELT: RIGID AIR: FLEX R3 Figure 14: Setup Mode Figure 16: Edit Option Screen

35 17 - Press R1 to select full edit, rigid, or flex for the profile cook temperture setting. - Press R3 to select full edit, rigid, or flex for the % ir setting. Chnging the Disply Lnguge NOTE: Feture is t vilble on ll oven models. From the setup menu screen (Figure 14), press R1 to set the lnguge to English, French, Germn, or Spnish. Chnging the Speker Volume Press R2 (figure 14) to chnge the volume of the speker. The volume cn be set to either 0, 1, 2, or 3 (where 0 is mute nd 3 is the loudest setting). Info Screen The info screen (Figure 17) is used to disply the following informtion in n esy to ccess plce: - The oven s seril number - The oven s electricl comprtment temperture - The oven s voltge - The totl time the oven hs been on - The totl time the oven hs been idle - The oven s softwre version To ccess the info screen, press R3 within the setup mode. Test Mode The test mode serves six min purposes: 1. To test individul oven components. 2. To view oven informtion. 3. To reset oven prmeters. NOTE: When the oven is in test mode, the burner does t operte unless burn-in test is being performed. To ccess the test mode, 1. Press the up key from the oven off or cooling down mode to ccess the config mode. 2. Press the R3 soft key. 3. Input the pssword (Figure 20). The test mode consists of two screens (Figures 18 nd 19). Use the up nd down keys to nvigte between them. From screen 1 of the test mode, the user cn: -Access the burner control screen. -Mnipulte the top nd bottom blowers. -View the sttus indictors. From screen 2 of the test mode, the user cn: -Input new seril number -Initite burn-in test -Erse ll oven settings -Enble/disble mintennce mode* -Cler the fult counts * The mintennce mode will show temperture, burner opertion, nd other digstics while the oven is running. L1 L2 SERIAL_NUMBER EC=82F 208V INFO RUN: HR IDLE: HR R1 R2 L1 L2 INPUT SN BURN-IN TEST PAGE 2 208V MAINT ON R1 R2 L3 SOFTWARE VERSION R3 L3 ERASE/CLEAR CLEAR FAULTS R3 Figure 17: Info Screen Figure 19: Test Mode Screen 2 L1 L2 L3 HEAT CTRL BELT CTRL TEST PAGE 1 TOP AIR BOT AIR D EC27 450F 45% 100% 23.9V 0.0V R 1 2 _ H _ O T B T B F Figure 18: Test Mode Screen 1 R1 R2 R3 L1 L2 L Figure 20: Pssword Screen ENTER PASSWORD <2433> R1 R2 R3 oven modes

36 18 oven modes Accessing the Het Control Screen From screen 1 of the test mode (Figure 18, pge 17), press L1 to ccess the het control screen (Figure 21). Use this mode to set gs pressures (see pge 3). To chnge the burner s setting, -Press L1 to set the burner to full (or to -light the burner). -Press L2 to set the burner to low. -Press R1 to turn the burner off. Accessing the Belt Control Screen From test mode screen 1 (Figure 18, pge 17), press L2 to ccess the belt control screen (Figure 22). Use this mode to verify the belts work correctly. The number fter the belt speed shows the pulses red by the HES. The percentge is the mount of drive being sked of the CMSC (100% = 10V). To chnge the belt s setting, -Press L1 to turn the belts off. -Press L2 to ccess the belt F controls. -Press L3 to ccess the belt R controls. Mnipulting the Top nd Bottom Blowers Figure 18, pge 17. The user cn chnge the speed of the top nd bottom blowers independently. To chnge the speed of the blowers, 1. From screen 1 of the test mode, press R1 to ccess the top blower or R2 to ccess the bottom blower. 2. Press the up or down keys to chnge the speed of the selected blower in 5% increments. The percentge of ir cnt go below 30% or bove 100%. Viewing the Sttus Indictors Figure 21 The sttus indictors re locted t the bottom of test mode screen 1 nd the burner control screen. The sttus indictors re split into two disply lines. Top Disply Line The top disply line shows vlues relting to oven components. The letters -g below nd on Figure 23 indicte the different top disply line sttus indictors, which re explined below. Shows which key is currently pressed. -U = up key -D = down key - = L1 -b = L2 -c = L3 -f = R1 -g = R2 -h = R3 -P = bck/off key -I = idle key -S = emergency stop key b Shows the temperture within the electricl comprtment (temperture displyed in Celsius only). c Shows the temperture within the cook chmber. d Shows the % vlue to which the gs vlve is set. L1 HEAT FULL (LIGHT) HEAT OFF R1 BELTS OFF L2 HEAT LOW HEAT CTRL TCC = 475F R2 BELT F BELT CTRL 10: % L3 D EC27 450F 45% 100% 23.9V 0.0V R 1 2 _ H _ O T B T B F R3 BELT R 12: % Figure 21: Burner Control Screen Figure 22: Belt Control Screen

37 19 e f Shows whether or t the igniter is on. 0% = OFF, 100% = ON. Shows the voltge of the power supply. Bottom Disply Line The bottom disply line shows enbled inputs nd outputs on the control bord. The numbers 1-10 indicte the different bottom disply line, which re explined below. NOTE: A - or _ displyed on the bottom disply line detes vlues tht re t pplicble to this oven. 1 R represents the rel time clock pulse used by the control bord to time oven functions. The R will blink once per second. 2 The 1 shows tht the rer belt s conveyor motor s Hll Effect Sensor (HES) is sending pulse to the control bord. 3 The 2 shows tht the front belt s conveyor motor s HES is sending pulse to the control bord. 4 The H will only be missing during n F3: Flmeout fult. 5 The O will only be missing during n F8: High Limit Tripped fult. 6 The first T is displyed while the top ir BMSC reports n ok sttus to the control bord. 7 The first B is displyed while the bottom ir BMSC reports n ok sttus to the control bord. ir BMSC is enbled nd receiving commnd. 9 The second B is displyed while the bottom ir BMSC is enbled nd receiving commnd. Entering New Seril Number Figure Press L1 (Figure 19, pge 17) on screen 2 of the test mode to ccess the input new seril number screen. 2. Enter the new seril number. -The up key moves up through the -vilble chrcters. i.e. A,B,C -The down key moves down through the -vilble chrcters i.e. A,+,-,,9,8, - INS (L1) inserts spce. - DEL (R1) deletes the selected chrcter > (R2) moves the cursor to the right. -The cursor strts t the fr left chrcter. If > is pressed when the cursor is on the -fr right chrcter, the cursor moves to the -fr left chrcter. - <--- (L2) moves the cursor to the left. The -cursor strts t the fr left chrcter, if <--- -is pressed when the cursor is on the fr left -chrcter, the cursor moves to the-fr right -chrcter. 3. Press sve (R3) to sve the chnges or cncel (L3) to cncel ny chnges. 8 The second T is displyed while the top L1 L2 L3 b c d e f g D EC27 450F 45% 100% 23.9V 0.0V R 1 2 _ H _ O T B T B F Figure 23: Sttus Indictor Explntion R1 R2 R3 INS DEL <--- [ ] ---> CANCEL SAVE Figure 24: Enter New Seril Number Screen oven modes

38 20 oven modes Inititing Burn-In Test NOTE: Burn-in tests re for mnufcturing use only. DO NOT initite burn-in test unless expressly instructed by TurboChef. To initite burn-in test, Press L2 (Figure 19, pge 17) on screen 2 of the test mode. The burn-in test (Figure 25) runs the oven for 45 minutes to ensure correct oven opertion. When the burn-in test completes, the burn-in complete screen (Figure 26) ppers. Press ny key to send the oven to the cooling down mode. If the burn-in test fils, the pplicble error code will pper nd the oven will return to the cooling down or oven off mode. Ersing ll Oven Settings To erse ll oven settings nd return the oven to the mnufcturer defults, press L3 (Figure 19, pge 17) on screen 2 of the test mode. The oven will sk you to confirm this ction (Figure 27); press R3 to confirm or the bck/off key to cncel. Clering the Fult Counts To cler the fult counts (reset ll fult counts to 0), press R3 (Figure 19, pge 17) on screen 2 of the test mode. The oven will sk you to confirm this ction (Figure 28), press R3 to confirm or the bck/off key to cncel CAUTION: Fult counts cnt be retrieved once the erse option is confirmed. Viewing the Seril Number The seril number is locted t the bottom of screen 2 of the test mode (Figure 19, pge 17). CAUTION: Write this number down before replcing the I/O control bord. Replcing the I/O control bord will erse this number from the oven s memory. If replcing control bord, see pge 19 for reentering the seril number. CAUTION: Settings cnt be retrieved once the erse option is confirmed. L1 L2 L3 BREAKFAST TOP AIR 80 % Burn-In in Progress BELT F COOKING SET 5:00 OVEN TCC = 475F 475F Time Left = 42:37 BELT R 3:20 100% BTM AIR 100 % R1 R2 R3 L1 L2 L3 ERASE ALL? Continue? R1 R2 R3 Figure 25: Burn-In Test Screen Figure 27: Confirm Erse All Screen L1 L2 BURN-IN COMPLETE OVEN TCC = 475F R1 R2 L1 L2 CLEAR FAULTS? R1 R2 L3 PRESS ANY KEY TO CONTINUE R3 L3 Continue? R3 Figure 26: Burn-In Pssed Screen Figure 28: Confirm Cler Fult Counts Screen

39 Oven Systems

40

41 21 The Control System This section contins informtion bout the following components: -Control Bord -Disply -EMI Filter -Fuses -High-limit Thermostt -Idle Button -Keypd -Power Supply - 24VDC (Domestic) -Power Supply - 24VDC (Interntionl) -Rely (K3 - Gs) -Rely (K4 - Ignition) -RTD -Smrt Crd Reder -Speker -Thermostt º F (Close on Rise) -Wire Hrness This section lso contins testing procedures for the following components: -Power Supply - 24VDC (Domestic) -Power Supply - 24VDC (Interntionl) -Rely (K3 - Gs) -Rely (K4 - Ignition) -RTD Control Bord The control bord is powered by the 24 VDC power supply, nd sends control voltge to ll the relys. See pge 45 for schemtic. 24 VDC cn be mesured t the J9 connector, pins 19 nd 8. See pges Fuses The control circuit is ultimtely protected by two 20-mp clss CC fuses, which re in the line-voltge circuit (incoming voltge). The fuses re designed to blow in cse of n overcurrent sitution. High-Limit Thermostt The high limit thermostt is 3-pole, mnul reset thermostt with trip point of 572ºF (300ºC). The thermostt interrupts power to both the ignition module nd the closed circuit of the I/O control bord. Idle Button The Idle Button plces the oven in idle mode, slowing the blowers to 30%. When lit, idle mode is ctive. Keypd The keypd is n 11-key membrne switch. Power Supply - 24VDC (Domestic) The power supply - 24VDC (domestic) converts line voltge ( VAC) to 24 VDC. Line voltge ( VAC) is connected to terminls 1 & 4 (jumper between terminls 2 & 3, terminl 5 is t used). The resistnce from terminls 1 to 4 (with wires disconnected) is 20.7 W. The output (24 VDC) is on terminls +OUT (power = good) nd -OUT (power = bd). Disply The vcuum fluorescent disply is the primry user interfce, nd is powered by the control bord using 5 VDC. Its input voltge cn be tested t J7, pins 1 nd 3 (pge 45). EMI Filter The EMI filter helps suppress the mount of RF ise emitted by the oven, lso filtering ise from entering the controls. Testing Procedure 1. Disconnect line voltge from the unit. 2. Tke resistnce reding on terminls 1 & 4. ) If terminl resistnce is correct (20.7 W): -Apply line voltge to the unit. -Check for line voltge ( VAC) -t terminls 1 & 4. oven systems

42 22 oven systems b) If terminl resistnce is incorrect, replce the power supply. 3. If correct voltge is present, disconnect the output wires nd check output (-OUT & +OUT) for 24 VDC. 4. If voltge is present with output wires disconnected nd t present when the wires re connected, inspect the wire hrness for dmge or shorts. 5. If the wire hrness is intct nd undmged, the power supply is dmged or defective nd must be replced (pge A-8). Power Supply - 24VDC (Interntionl) The power supply - 24VDC (interntionl) converts line voltge to 24 VDC. Line voltge is connected to terminls L & N. The output (24 VDC) is on terminls -V nd +V. Testing Procedure 1. Check for line voltge ( VAC) t terminls L & N. 2. If correct voltge is present, check output (-V & +V) for 24 VDC (with output wires disconnected). 3. If voltge is present with output wires disconnected nd t present when the wires re connected, inspect the wire hrness for dmge or shorts (pge 45). 4. If wire hrness is intct nd undmged, the power supply - 24VDC (interntionl) is dmged or defective nd must be replced (pge A-8). K3 Rely - Gs The K3 rely is single pole, double throw rely with 24 VDC coil. The coil resistnce is 577 W nd the contct rting is 20A t 240 VAC. When 24 VDC is pplied to the coil, the rmlly open contcts (7 & 4 or C & NO) close pplying line voltge to the burner trnsformer nd the combustion blower. Testing Procedure 1. Disconnect line voltge to the unit. 2. Tke resistnce reding of the coil. 3. If coil resistnce is correct (577 W): ) Apply line voltge to the unit. b) Check for 24 VDC t the coil of the rely when the unit is clling for het. c) Check the stte of the contcts. -If the rmlly open contcts (7 & 4 -or C & NO) re closed when coil -voltge is pplied, the K3 rely is -functioning rmlly. -If the rmlly open contcts (7 & 4 -or C & NO re t closed when coil voltge is pplied, the K3 rely is -mlfunctioning nd must be replced -(pge A-8). 4. If the coil resistnce is incorrect, replce the K3 rely. K4 Rely - Ignition The K4 rely is single pole, double throw rely with 24 VAC coil. The coil resistnce is 585 k W nd the contct rting is 20 A t 240 VAC. When 24 VAC is pplied to the coil, the rmlly open contcts (7 & 4 or C & NO) close nd the rmlly closed contcts (7 & 1 or C & NC) open. The K4 rely uses the rmlly closed contcts. If 24 VAC is pplied to the ignition module nd 1.5 ua minimum is t mintined, the ignition module pplies 24 VAC to the rely nd the contcts open. When the contcts open the I/O control bord shows n F3 No Flme fult. Testing Procedure 1. Disconnect line voltge to the unit. 2. Tke resistnce reding of the K4 coil.

43 23 3. If coil resistnce is correct (585 k W): ) Apply line voltge to the unit. b) Check for 24 VAC t the coil of the rely when the unit is clling for het. c) Check the stte of the contcts. -If the rmlly open contcts (7 & 4 -or C & NO) re closed nd the -rmlly closed contcts (7 & 1 or C -& NC) re open when coil voltge is -pplied, the K4 rely is functioning -rmlly. -If the rmlly open contcts (7 & 4 -or C & NO) re t closed nd/or the -rmlly closed contcts (7 & 1 or C -& NC) re t open when coil voltge -is pplied, the K4 rely is -mlfunctioning nd must be replced. 4. If the coil resistnce is incorrect, replce the K4 rely (pge A-14). RTD The RTD is resistnce temperture detector used to detect the cvity temperture. Testing Procedure 1. Disconnect the RTD from the I/O control bord. 2. Plce the RTD in bowl of ice wter for 2 minutes. 3. Tke resistnce reding of the RTD. 4. If RTD resistnce is t 100 W, RTD is defective nd must be replced. NOTE: Use Figure 29, pge 24 to determine resistnce redings t tempertures other thn freezing. Speker The speker is seprte from the control bord, nd provides udible feedbck to the oven opertor whenever key is pressed or fult occurs. Thermostt - 120ºF (Close on Rise) The cooling fn thermostt ctutes the cooling fns when the temperture in the left end bell reches 120ºF (49ºC). Wire Hrness The wire hrness distributes power to the oven s electricl components. See pge 45 for schemtic. The Conveyor System This section contins informtion bout the following components, s well s testing procedures: - Ger Drive (Conveyor Motor) - Ger Drive (Conveyor Motor) Speed Controller (CMSC) Ger Drive (Conveyor Motor) The conveyor motor is 1550 RPM, 3-phse motor with built in Hll Effect Sensor. The speed of the conveyor motor is controlled by the voltge frequency pplied to the windings from the CMSC. The Hll Effect Sensor sends DC pulse bck to the control bord to verify motor speed. The control bord uses these pulses to determine the output DC voltge to the CMSC. Conveyor ovens with split-belt configurtion will contin seprte ger motors nd speed controllers for ech belt. Smrt Crd Reder The smrt crd reder llows the oven opertor to lod menu/firmwre updte from smrt crd. A menu tht lredy exists in the oven cn lso be sved to smrt crd. For instructions, see pge 15. Testing Procedure 1. Disconnect line voltge from the unit. 2. Tke resistnce reding of the motor windings nd use Figure 30, pge 24 to verify tht the resistnce redings re correct. oven systems

44 24 oven systems 3. If the resistnce redings re correct, reconnect the motor wiring nd then pply line voltge to the unit nd check for voltge pplied to the motor windings. 4. If voltge is present, ensure the CMSC is operting properly (see below). 5. If CMSC is operting properly, inspect the wire hrness for dmge or shorts. 6. If the wire hrness is intct nd undmged, nd the CMSC is operting properly, the ger drive is dmged or defective nd must be replced (pge A-8). Ger Drive (Conveyor Motor) Speed Controller (CMSC) The CMSC converts single-phse line voltge to three-phse output. The speed of the ger drive is controlled by the frequency output of the CMSC. The CMSC receives n input voltge (0-10 VDC) from the control bord nd djusts the frequency output to the ger drive. Testing Procedure WARNING: Cpcitors within the CMSC cn retin chrge fter power is removed. Exercise extreme cution when hndling the terminls. WARNING: DO NOT connect incoming AC power to output terminls U, V, or W. This will seriously dmge the Conveyor Motor Speed Controller. 1. Ensure tht fults pper on the disply of the CMSC during oven opertion. The control will disply the frequency output if the system is operting correctly. 2. Check the input voltge on terminls L1 & L2 nd the DC voltge input on terminls 0V & AI ( VDC). 3. Check ohms of motor (Figure 30). 4. If voltge is present, inspect the wire hrness for dmge or shorts (pge 45). 5. If wire hrness is intct nd undmged, the CMSC is dmged or defective nd must be replced. ºF 0º +20º +40º +60º +80º +100º +120º +140º +160º +180º +200º 0º 90.03W 97.39W W W W W W W W W W +200º W W W W W W W W W W W +400º W W W W W W W W W W W +600º W W W W W W W W W W W ºC 0º +10º +20º +30º +40º +50º +60º +70º +80º +90º +100º 0º W W W W W W W W W W W +100º W W W W W W W W W W W +200º W W W W W W W W W W W +300º W W W W W W W W W W W Figure 29: Temperture/Resistnce Reltionship Clss B. 0ºC = 100.0, Alph = To From Description Expected Resistnce White Grey Winding (A-B) W White Blck Winding (A-C) W Grey Blck Winding (B-C) W Blck, Brown, or Blue Green Windings to chssis Open Figure 30: Conveyor Motor Ohm Chrt

45 25 Accessing Prmeters WARNING: DO NOT perform this procedure unless instructed by TurboChef.Chnging the prmeters to other thn those preset by TurboChef cn dmge criticl oven components. NOTE: Motor Rted Speed (07) is RPM of motor before gerbox, t fter. 1. Open the right end bell (pge 1). 2. Locte the CMSC (pge A-8). 3. Press the M key. 4. Use the nd keys to nvigte the prmeters. 5. Press the M key to ccess the prmeter shown on the CMSC disply. 6. Use the nd keys to mnipulte the prmeter. 7. Press the M key to return to the prmeter selection. 8. Repet steps 4-7 to mnipulte other prmeters s needed. The Blower System This section contins informtion bout nd testing procedures for the following components: -Blower Motor -Blower Motor Speed Controller (BMSC) windings nd use Figure 31 to verify the resistnce redings re correct. 3. If the resistnce redings re correct, reconnect motor wiring nd then pply line voltge to the unit nd check for voltge pplied to the motor windings. 4. If voltge is present, ensure the BMSC is operting properly (see below). 5. If BMSC is operting properly, inspect the wire hrness for dmge or shorts (pge 45). 6. If wire hrness is intct nd undmged nd the BMSC is operting properly, the blower motor is dmged or defective nd must be replced (pge A-8 = lower, A-12 = upper). Blower Motor Speed Controller (BMSC) The BMSC converts single-phse line voltge ( VAC) to three-phse output. The speed of the blower motor is controlled by the frequency output of the BMSC. The BMSC receives n input voltge (0-10 VDC) from the I/O control bord nd djusts the frequency output to the blower motor. Testing Procedure CAUTION: Cpcitors on the BMSC my retin chrge fter power is removed. To dischrge cpcitors for further sfety, short B+ nd B- together. WARNING: DO NOT connect incoming AC power to output terminls U, V, or W or terminls B+ or B-. This will seriously dmge the BMSC. Blower Motor The min blowers re 3400 RPM, 3-phse blower motors. The speed of the blower motor is controlled by the voltge frequency pplied to the motor windings from the blower motor speed controller (BMSC). Testing Procedure 1. Disconnect line voltge from the unit. 2. Tke resistnce reding of the motor 1. Ensure tht fults pper on the disply during the opertion of the BMSC. The control will disply the frequency output if the system is operting correctly. To From Description Expected Resistnce Blue Brown Winding (A-B) W Blue White Winding (A-C) W Brown White Winding (B-C) W Blue, Brown, or White Green Windings to chssis Open Figure 31: Blower Motor Ohm Chrt (Motor Windings) oven systems

46 26 oven systems 2. Check the input voltge on terminls L1 & L2 ( VAC) nd the DC voltge input on terminls 2 & 5 ( VDC). 3. If voltge is present, inspect the wire hrness for dmge or shorts (pge 45). 4. If wire hrness is intct nd undmged, the BMSC is dmged or defective nd must be replced (pge A-8 = lower, A-12 = upper). Accessing Prmeters WARNING: DO NOT perform this procedure unless instructed by TurboChef.Chnging the prmeters to other thn those preset by TurboChef cn dmge criticl oven components. 1. Open the right or left end bell depending on which BMSC requires testing (pge 1, A-1). 2. Locte the BMSC (pge A-1). 3. Press the mode key. 4. Use the keys to nvigte the prmeters. 5. Press the mode key to ccess the prmeter shown on the BMSC disply. 6. Use the keys to mnipulte the prmeter. 7. Press the mode key to return to the prmeter selection. 8. Repet steps 4-7 to mnipulte other prmeters s needed. The Burner System This section contins informtion bout nd testing procedures for the following components: - Air Pressure Switch - Burner Trnsformer - Combustion Blower - Modulting Gs Vlve - Ignition Module Air Pressure Switch The ir pressure switch contcts close when 0.1in WC (2.54mm WC) differentil exists between the two ports. The ir pressure switch hs one negtive port nd one positive. The ir tube from the combustion blower is ttched to the positive port. The ir tube must t be dmged in ny wy (crcked or split). The connection must be tight t the combustion blower nd the switch itself to ensure proper opertion of the ir pressure switch. Testing Procedure 1. Attch digitl mmeter to the ir tube coming from the combustion blower. 2. A reding bove 0.1in WC (2.54mm WC) is required to close the contcts. If the reding is below 0.1in WC (2.54mm WC), check the combustion blower opertion. Burner Trnsformer The burner trnsformer converts incoming line voltge to 24 VAC output. Testing Procedure 1. Disconnect line voltge to the burner trnsformer. 2. Remove the burner trnsformer led wires. 3. Check the resistnce of the primry nd secondry windings, refer to Figure 33, to determine if the trnsformer is functioning properly. 4. Set up the wire configurtion for 208 or 240: VAC instlltion: connect wire B (blue) to wire C (blue). Figure 32, below, is configured for 208 VAC opertion VAC instlltion: connect wire A (red) to wire C (blue). A B C Figure 32: Burner Trnsformer Wires

47 27 To From Expected Resistnce Primry Blck White (240 VAC Input) 28.1 W Blck Blue (240 VAC Input) 53.1 W Combustion Blower Blck Red (240 VAC Input) 62.4 W Secondry Yellow Yellow 0.80 W Figure 33: Burner Trnsformer Ohm Chrt The combustion blower is 3000 RPM, VAC, 0.33 A, 50/60 hz, blower motor. The winding resistnce is 92 W. The combustion blower receives line voltge ( VAC) from the K3 rely. Once the combustion blower reches full speed, the ir pressure switch closes, pplying 24 VAC to the ignition module. Testing Procedure 1. Disconnect line voltge from the unit. 2. Tke resistnce reding of the winding; resistnce should be 92 W. If resistnce is incorrect, the combustion blower is dmged or defective nd must be replced (pge A-14). 3. Apply line voltge to the unit nd check for line voltge ( VAC) pplied to the winding when the unit is clling for het nd the K3 rely is closed. 4. If voltge is present, inspect the wire hrness for dmge or shorts (pge 45). 5. If the wire hrness is intct nd undmged, the combustion blower is dmged or defective nd must be replced (pge A-14). Modulting Gs Vlve The modulting gs vlve is combintion gs vlve with 24 VAC primry soleid vlve nd VDC modulting vlve. The primry soleid vlve receives 24 VAC from the ignition module. The resistnce of the primry soleid vlve is 535 k W. The modulting vlve receives VDC from the control bord. The resistnce of the modulting vlve is 44 W. The modulting vlve hs n djustment shft tht djusts the high nd low flme pressure. Testing Procedure NOTE: See pge 3 for instructions on djusting the high nd low flme gs pressure. 1. Disconnect line voltge from the unit. 2. Tke resistnce reding of both coils, resistnces should be 535k W nd 44 W. If resistnce is incorrect, the gs vlve is dmged or defective nd must be replced (pge A-14). 3. During wrmup nd cook mode, pply line voltge to the unit nd check for 24 VAC t the primry soleid coil nd VDC t the modulting vlve coil. 4. If voltge is present, inspect the wire hrness for dmge or shorts (pge 45). 5. Check for 24 VAC leving the ignition module (see Figure 35, pge 28) 6. If wire hrness is intct nd undmged, the modulting gs vlve is dmged or defective nd must be replced (Pipe nd vlve ssembly, pge A-14). Ignition Module The ignition module genertes 30,000 V t the sprk igniter stud for direct ignition of the min burner when 24 VAC is pplied. The module senses the presence of the burner flme nd discontinues the ignition sprk. If the burner fils to ignite within 6 seconds, the module goes into sfety lockout. If the burner does t mintin 1.5 DC ua minimum, the timed tril for ignition (6 seconds) is repeted nd sfety lockout occurs. If sfety lockout occurs, power must be removed from the module before it cn be restrted. Testing Procedure NOTE: The ignition module is different in domestic nd interntionl model ovens. Figure 34 shows the differences in the terminl lbels between the two models. 1. Shut off the gs supply. 2. Disconnect the wire sprk cble from the stud terminl of the ignition module. This will isolte the burner sprk rod from the ignition module. oven systems

48 28 oven systems 3. Using different wire sprk cble (ensure tht the cble is t dmged in ny wy), ttch one end to the stud terminl of the ignition module. 4. Touch the other end of the ignition cble to the ground terminl of the ignition module (DO NOT remove the existing ground led from the ignition module). 5. Apply power to the ignition module. 6. Before the ignition module goes into sfety lockout (6 seconds), slowly move the end wy from the ground terminl. A sprk length of 1/8 (3 mm) or more indictes good ignition voltge. If there is rc or the mximum sprk length is less thn 1/8 (3 mm), nd the input voltge to the ignition module is VAC, the ignition module is dmged or defective nd must be replced (pge A-14). Domestic Interntionl 25 VAC TH/W 25 V V2 GND Alrm Not Used Vlve V1/PV1 Vlve V2 GND Ground V2 GND Testing Procedure for Testing Flme Rectifiction Figure Ensure the oven is in the off or cooling down mode (pge 10). 2. Remove the flme signl ground wire from the ignition module. 3. Connect DC multipurpose meter tht is ble to red micro mps (ua) in series with the flme signl ground wire. -Connect the red (+) meter led to the free -end of the flme signl ground wire. -Connect the blck (-) meter led to the quick -connect flme signl ground wire terminl -on the ignition module. 4. From the off or cooling down mode, select cooking profile to operte the oven burner. 5. The reding must be bove 1.5 DC ua nd it must be stedy. The oven control system uses bsic flme rectifiction to verify if flme is present. The micro mps must be greter thn 1.5 DC ua. If the reding is below 1.5 DC ua or is t stedy, remove the burner ssembly nd investigte the cuse. Look for loose ignition/sensor wire, or defective sensor ssembly. Follow the troubleshooting steps outlined on pges ALARM VALVE VALVE GND MULTIPURPOSE METER Figure 34: Ignition Module Terminl Differences RED (+) BLACK (-) Figure 35: Mesuring Micromps

49 Troubleshooting

50

51 29 Overview of Troubleshooting This section contins informtion on the following: - Fult code descriptions - Fult code troubleshooting - Non-fult code troubleshooting Fult Code Descriptions Fult codes re logged in fult counter (pge 16) for troubleshooting. Upon completing the service cll nd restoring successful opertion of the oven, the technicin should cler ll fults (see pge 20). The fult is clered from the disply if the flme succeeds to light when the user re-selects the cooking profile. F4: Emergency Stop This fult is displyed when the emergency stop key is pressed. This fult cts s counter tht logs how mny times the emergency stop key (pge 9) hs been pressed. The fult is clered from the disply once the oven is restrted. F1: Blower Filure This fult is displyed if for three consecutive times the control bord does t receive the sttus OK signl from the BMSC. The fult is clered from the disply if the blowers successfully restrt upon strting cook cycle or in test mode. F2: Low Temp During Cook The oven will emit beeping ise nd disply this fult if the cook cvity temperture flls 25 F (14 C) below the current cooking profile s set temperture, nd the fult will be logged in the fult counter. The fult is clered from the fult disply if the cook cvity temperture returning to within 25 F (14 C) of the set cooking temperture during cooking or in test mode. F3: Flmeout This fult is displyed if the flme fils to light three consecutive times t strtup, or once the oven reches the cooking temperture, the flme goes out nd fils to re-light three consecutive times. F5: CC Over Temp This fult is displyed if the cook cvity s temperture reches or exceeds 625 F (329.4 C). The fult is clered from the disply once the oven is restrted nd the temperture recedes below 625 F (329.4 C). F6: EC Over Temp This fult is displyed if the equipment chmber reches 149 F (65 C); however, the oven will t shut down nd the fult will t be logged in the fult count log unless the equipment chmber reches 158 F (70 C). The fult is clered from the disply when the equipment chmber temperture flls below 149 F (65 C). F7: RTD Filure This fult is displyed if the RTD circuit is open, shorted, reds bove 645 F (340.5 C), or reds below -40 F (-40 C). The fult is clered from the disply if the RTD circuit is closed, or the temperture reds within 645 F (340.5 C) nd 40 F (-40 C) Troubleshooting

52 30 Troubleshooting F8: High Limit Tripped This fult is displyed if the high limit switch trips. The switch trips when the high limit probe reds pproximtely 600 F (315.5 C). The fult is clered from the disply when the high limit switch is mnully reset. F9: Belt Fult This fult occurs if the conveyor belt fils to strt. F10: Air Switch Fult This fult occurs if the ir pressure switch on the burner fils to close when the burner circuit is energized. The fult is clered from the disply when the ir pressure switch closes fter the burner circuit is energized. The fult is clered from the disply if the conveyor belt strts when inititing cooking. Fult Code nd Description When Active Refer to... Wrming Idle Cooking Test F1: Blower Filure Pge 31 F2: Low Temp During Cook Pge 32 F3: Flmeout Pge 34 F4: Emergency Stop N/A F5: CC Over Temp Pge 36 F6: EC Over Temp Pge 37 F7: RTD Filure Pge 38 F8: High Limit Tripped Pge 38 F9: Belt Fult Pge 39 F10: Air Switch Fult Pge 40 Figure 36: Fult Code Tble NOTE: All fult codes, except F2 nd F9 will terminte cooking upon discovery. Any fult tht occurs will be logged in the in the fult count log (pge 16), except F6.

53 31 Fult Code Troubleshooting From test mode, you cn test seprte oven components to help digse n issue. To ccess test mode, see pge 16. Troubleshooting: F1:BLOWER FAULT (Blower Filure) Open Left End Bell. Is fult code present on the BMSC? 6 7 Open the Right End Bell. Is fult code present on the BMSC? CF, cf, F1, or GF fult: EPM module is fulty. Replce BMSC (pge A-8 = lower, pge A-12 = upper). AF fult: Temperture is too high in housing. Check cooling system (pge 41). Any other fult: Cll technicl support. Access the test mode. (pge 16) Are the sttus indictors t loction 6 nd 7 present (pges 18-19)? Is the blower motor spinning freely? Do resistnce mesurements between windings nd chssis gree with vlues on motor windings resistnce tble (Figure 37)? Replce BMSC (pge A-8 = lower, A-12 = upper). Is the wiring connected properly? Check the BMSC, blower motor, nd I/O control bord. To From Description Expected Resistnce Blue Brown Winding (A-B) W Blue White Winding (A-C) W Brown White Winding (B-C) W Blue, Brown, or White Green Windings to chssis Open Figure 37: Motor Windings Resistnce Tble Check the I/O control bord, BMSC, nd blower motor wiring (pge 45). Remove obstruction or, if necessry, replce blower motor (pge A-8 = lower, A-12 = upper). Replce the blower motor (pge A-8 = lower, A-12 = upper). Correct wiring or replce I/O control bord, BMSC, or blower motor if dmged (pge A-8 = lower, A-12 = upper). Troubleshooting

54 32 Troubleshooting Troubleshooting: F2: LOW COOK TEMP (Low Temp During Cook) Restrt the oven, ccess the test mode, nd turn on both the top nd bottom blowers. Are the sttus indictors t loction 6, 7, 8, nd 9 present (pges 18-19). Troubleshoot the blowers (pge 31). Are the zzles nd plenums correctly instlled (pges 7-8, steps 9-13)? Correctly reinstll the zzles nd plenums. Open the right end bell. Are the gs vlve nd RTD properly connected to the I/O control bord (pge 45)? Fix wiring/connections. Is the gs line properly connected (i.e. crimps, breks, or leks)? Is the mximum nd low fire gs pressure set correctly (pge 3)? Is the RTD dmged or defective (pge 23)? Test the RTD (pge 24 for resistnce/ temperture chrt). Fix connection. Reset mximum nd low fire gs pressure (pge 3). Replce the I/O control bord (pge A-8).

55 33 This pge intentionlly left blnk. Troubleshooting

56 34 troubleshooting Turn the oven off nd then on. Does the burner ignite nd the fult cler? Operte rmlly. Troubleshooting: F3: NO FLAME (Flmeout) Does the burner ignite? Is the set temperture higher thn the cook cvity temperture? Adjust the set temperture. Replce the ignition module (pge A-14). Clen or (if necessry) replce the sprk rod (pge A-14). Is the gs line connected nd the gs supplied turned on? Is the unit clling for het (If % on front disply is greter thn 0%)? Remove the cooling duct nd rer ccess pnel (pge 1). Is the mnul vlve open? Fix the connection or turn the gs supply on. Open the mnul vlve (pge A-14). Is the sprk rod dmged or dirty? Does the ignition module hve 24 VAC pplied? Replce the wire sprk cble (pge A-14). Is the wire sprk cble dmged or disconnected (pge A-14). Is inlet gs pressure present? Inlet gs pressure must be between 6 W.C. (152.4 mm W.C.) & 14 W.C. (355.6 mm W.C.). Check inlet gs connections nd supply. Replce the modulting gs vlve (pge A-14). Inspect, clen, or if needed, replce the burner ssembly (pge A-14). Is the burner ttempting to ignite (is sprk present) (pge 27)? Is gs pressure present when unit is sprking? Is the pressure on the gs vlve set correctly (pge 3)? Reset the gs pressure (pge 3).

57 35 Does the burner trnsformer hve 24 VAC output (pge 26)? Are the contcts on the high limit thermostt closed (pge A-14)? Inspect or replce the high limit thermostt (pge A-14). Is the ir pressure switch closed? Does the burner trnsformer hve line voltge pplied to input? Check the wiring. (pge 45) Is the K3 gs rely closing (pge 22)? Is 24 VDC pplied to the K3 gs rely? Replce the burner trnsformer (pge A-8). Check the Wiring (pge 45). Replce the K3 gs rely (pge A-8). Replce the I/O control bord (pge A-8). Is voltge pplied to the combustion blower? Is the combustion blower running? Check the wiring (pge 45). Is the ir tube tightly connected? Replce the combustion blower (pge A-14). Replce the ir tube. Replce the ir pressure switch (pge A-14). Is the 100% nd minimum flme djusted correctly (pge 3). Is t lest 1.5 ua mintined by the burner (pge 28)? Adjust the 100% nd minimum flme (pge 3). Inspect nd if needed, replce the flme sense rod (pge A-14). Inspect nd if needed, replce the burner ssembly (pge A-14). troubleshooting

58 36 troubleshooting Troubleshooting: F5: CC OVER TEMP (CC Over Temp) Open the rer ccess pnel (pge 1). Remove the white wire from the modulting gs vlve (pge A-14). Does the unit continue to het? Is the unit clling for het? (if % on front disply is greter thn 0%) Is the set temperture higher thn the cook cvity temperture? Is the white wire shorted to the chssis? Replce the I/O control bord (pge A-8). Adjust the set temperture (pge 13). Reset the minimum flme gs pressure (pge 3). Does the oven continue to het? Repir wiring (pge 45). Replce the I/O control bord (pge A-8). Replce the modulting gs vlve. (pge A-14) Operte rmlly.

59 37 Troubleshooting: F6: EC OVER TEMP (EC Over Temp) Are the ir filters on the left end bell clen (pge 1)? Clen the ir filter(s) (pge 5). Open the left end bell. Are the cooling fns running? Is the oven hot? Access test mode (pge 16). Is the sttus indictor t position b (pge 18-19) less thn 65? Replce the I/O control bord (pge A-8). Check for -Obstructions in the cooling tunnel. -Dirt or debris in the cooling fn bldes. -A het source ner the filter. Are the cooling fns receiving correct voltge (pge 45)? Check the wiring (pge 45). Is the cooling fn thermostt closed (pge 23)? Replce the cooling fns (pge A-12). Replce the thermostt (pge A-14). troubleshooting

60 38 troubleshooting Troubleshooting: F7: RTD FAULT (RTD Filure) Replce RTD (pge A-8). Replce the RTD (pge A-8). Open the right end bell. Is the RTD dmged or defective (pge 23)? Is the RTD open? Using n ohmmeter, mesure t the control bord (pges 45-47). RTD should mesure pproximtely 4-5 W. (See pge 24 for ohm/ temperture chrt.) Is the RTD connected properly to the I/O control bord (pge 45)? Correct wiring (pge 45). Replce the I/O control bord (pge A-8). Troubleshooting: F8: HIGH LIMIT TRIPPED (High Limit Trip) Reset nd determine why it tripped - over temp, blower filure, etc. Check if the high limit probe or RTD is dmged or defective, replce if needed (pge A-8). Is the high limit thermostt tripped (pge 21)? Replce the I/O control bord (pge A-8). Is the wiring correct (pge 45)? Are ll the contcts closed on the high limit thermostt? Replce the high limit thermostt (pge A-14). Ensure tht the minimum gs pressure is correctly set, reset if needed (pge 3). Correct wiring (pge 45).

61 39 Troubleshooting: F9: BELT FAULT (Totl Belt Run Filure) Are there ny obstructions tht re blocking the conveyor s movement or is the conveyor belt dmged? Remove obstruction or replce/ repir the conveyor nd restrt the oven. Is the F9 fult code still present? Operte the oven s you would rmlly. Correct wiring (pge 45). Check tht the CMSC settings correctly correspond with TurboChef settings. Cll service. Remove the chin gurd (pge A-6). Is the chin dmged or obstructed in ny wy? Open the right end bell. Is the wiring correctfrom the conveyor motor to the conveyor motor controller to the control bord correct (pge 45)? Is the conveyor motor, CMSC, or I/O control bord dmged or defective (see Figure 38 for motor winding resistnce). Remove obstruction or, if necessry, replce the chin. Replce needed prts (pge A-8). To From Description Expected Resistnce White Gry Winding (A-B) W White Blck Winding (A-C) W Gry Blck Winding (B-C) W White, Gry, or Blck Chssis Windings to chssis Open Figure 38: Motor Ohm Chrt (Motor Windings, t Hll Effect Sensor) troubleshooting

62 40 troubleshooting Troubleshooting: F10: Air Pressure Switch Fult Are ll the contcts on the high limit thermostt closed? Investigte the reson for the high limit tripping. If the thermostt is defective, replce it (pge A-14). Is line voltge pplied ( VAC) to the BMSC (pge 25)? Replce the combustion blower (pge A-14). Is the output of the burner trnsformer 24 VAC (pge 28)? Is the ir pressure switch closed? Is the combustion blower running? Is the ir tube connected tightly? Replce the ir switch (pge A-14). Check the wiring (pge 45). Replce the ir tube. Is the wiring correct (pge 45)? Does the burner trnsformer hve line voltge pplied to input ( VAC)? Replce the burner trnsformer (pge A-8). Replce the I/O control bord (pge A-8). Correct wiring (pge 45). Replce the K3 rely (pge A-8). Replce the I/O control bord (pge A-8). Is coil voltge (24 VDC) pplied to the K3 rely (pge 22)? Are the K3 rely contcts closed? Check the wiring (pge 45).

63 41 Non-Fult Code Troubleshooting This section provides troubleshooting tips for issues tht my occur independently of n oven fult. Troubleshooting: Cooling System Issue Is the oven in n re of moderte temperture (120ºF [49ºC] or cooler)? Does the oven hve room to ventilte (t tightly enclosed by other pplinces or fixtures)? Is the ir filter dirty nd/or the vent obstructed? Relocte oven to cooler re. Move oven to open re or remove items tht re in close proximity. Replce ir filter nd/or remove obstruction. Remove the cooling fn tube (pge 1). Is there n obstruction? Is the cooling fn thermostt closed (pge 23)? Remove the obstruction. Replce the cooling fns (pge A-12). Replce the cooling fn thermostt (pge A-12). Is line voltge pplied ( VAC) to the cooling fns? Check the wiring for problems (pge 45). troubleshooting

64 42 troubleshooting Troubleshooting: Food Not Cooking Properly Does the problem occur for ll progrmmed recipes? For exmple, re ll recipes undercooked/overcooked/etc.? Are there ny fult codes present (pge 29-30)? Troubleshoot the fult(s) using the steps on pges Is the food item in the correct strting stte (e.g., frozen, fresh, etc.)? Ensure the food item is being properly stored/prepred before cooking. Hs the oven been clened or moved prior to the problem strting? Ensure zzles nd plenums re correctly instlled. Does the problem remin? Operte the oven rmlly. Ws the oven clened? Ensure the gs is connected correctly nd djust the gs pressures if needed (pge 3). Does the problem remin? Are the conveyor motors, CMSCs, blowers, BMSCs, burner, nd combustion blower working correctly (pges 23-28)? Is the wire hrness properly connected (pge 45)? Replce/correct the opertion of the conveyor motors nd/or CMSCs, blower nd/or BMSCs, burner nd/or combustion blower, nd/or wiring hrness (pge 23-28, 45). Is the correct mount of food (portion) being cooked? Is the food item being prepred correctly nd consistently? For exmple, confirm met is sliced t correct thickness, pizz dough is correct consistency, etc. Correctly reinstll plenums nd zzle pltes (pge 7-8). Are the plenums nd zzle pltes correctly instlled (pges 7-8, steps 9-13)? Replce the I/O control bord (pge A-8). Does the problem occur EVERY time the food item is cooked? Troubleshoot the fult(s) using the steps on pges Ensure tht the correct mount is being cooked - t more or less thn the recipe specifies. Ensure tht the food item is properly prepred. Are there ny fult codes present?

65 43 Troubleshooting: No Disply - Screen is Blnk Does the keypd beep when key is pressed? Is wiring from the control bord to the disply (including the ribbon cble) OK (pge 45)? Replce the fuses (pge A-8). Correct wiring. If ribbon cble is dmged, replce the keypd (pge A-8). Is the 24 VDC power supply receiving power? Replce the power supply (pge A-8). Is the power supply output 24 VDC? Is 5 VDC present on pin 1 of the J3 connector? (pge 45) Replce the I/O control bord (pge A-8). Is the control bord receiving correct VDC (pge 45-46)? Replce the disply nd ribbon cble. (pge A-8) Check wiring from the power supply to the control bord. Correct wiring if necessry (pge 45). Verify 5 VDC is present on pin 1 of the J3 connector (pge 45). If t, replce the control bord (pge A-8). Troubleshooting: No Keypd Input Replce the keypd (pge A-8). If the problem persists, or if beeps occur when buttons re pressed but commnds do t register on the disply, replce the control bord (pge A-8). Is the keypd cble properly connected to the control bord? Correct wiring. troubleshooting

66 44 troubleshooting This pge intentionlly left blnk.

67 Schemtics

68

69 45 SCHEMATIC - US/CANADA

70 46 CONTROL PINOUTS - US/CANADA

71 47 CONTROLLER CODES - US/CANADA

72 48 SCHEMATIC - AUSTRALIA/NEW ZEALAND

73 49 CONTROL PINOUTS - AUSTRALIA/NEW ZEALAND

74 50 CONTROLLER CODES - AUSTRALIA/NEW ZEALAND