Turbo Chef HHB-8136 - Manuals

ii S A F E T Y I N S T R U C T I O N S P R E V E N T I N G O V E N D A M A G E o When servicing this appliance, do not tear insulation to get to components. Rather, find the edge ofthe insulation and remove the tape that holds it in place. o Operate the oven only when food is in the Cook Chamber. o ...

1 T H E O R Y O F O P E R A T I O N , S P E C I F I C A T I O N S A N D I N S T A L L A T I O N T H E O R Y O F O P E R A T I O N The TurboChef ® High h Batch speed cook oven uses high heat transfer rates developed by force airimpingement to rapidly cook food. The High hbatch utilizes top and bottom...

2 T H E O R Y O F O P E R A T I O N , S P E C I F I C A T I O N S A N D I N S T A L L A T I O N C O N S T R U C T I O N Exterior o Stainless steel front, top, sides, and back o 4 ′′ (102 mm) matte black legs o Cool-to-touch coated handle o Removable drain pan o Removable cook door for cleaning Inter...

3 T H E O R Y O F O P E R A T I O N , S P E C I F I C A T I O N S A N D I N S T A L L A T I O N 2. Lift from bottom of oven. 3. Place oven on surface at least 30 ′′ (762 mm) deep and capable of supporting 167 lbs (76 kg). Setup Once oven is properly positioned on the counter:1. Remove packing materi...

5 O P E R A T I N G T H E O V E N This section contains information on: o Control Display and Key Identification o Powering up o Powering down o Cooking Instructions o Cooking Options o Programming Recipes o Using the Options Menu C O N T R O L D I S P L A Y A N D K E Y I D E N T I F I C A T I O N R...

Menu Descriptions 1. Edit Menu Menu from which operator/technician can modify Cook Chamber temperature, recipes,and recipe settings. 2. Options Menu Menu from which operator can enable/disablevarious operative functions. 3. Recipe Menu (or “Menu”) Highest superset of recipes, the menu consists of12 ...

O P E R A T I N G T H E O V E N LEFT RIGHT        : Selecting a Food Group Press the Soft Key that corresponds to the desired foodgroup. In this example, pressing the top right Soft Keywould access all Food Items in the “1st Group”. NOTE: Press the “DOWN” Key to view FoodGroups 7-12. L EFT R ...

O P E R A T I N G T H E O V E N U S I N G T H E O P T I O N S M E N U Use the Options Menu to: o Enable/disable the Edit Menu o Erase Recipe Menu o Enable/disable the Write Card Function o Enable/disable the Time Screen o Enable/disable the Done Screen o Enable/disable Demonstration Mode To access t...

O P E R A T I N G T H E O V E N Erasing the Recipe Menu (Figure 9) Erasing the Recipe Menu will permanently deletecurrently-stored recipes and recipe settings. To erase the menu:1. From the Options Menu, press the “ERASE MENU” Soft Key (middle left) to erase menu. 2. Press the “ENTER” Key to confirm...

O P E R A T I N G T H E O V E N Enabling/Disabling Demonstration Mode (Figure 13) Enabling Demonstration Mode allows the operatorto view/show every operational aspect of the ovenwithout the oven actually heating up. By default, the Demonstration Mode is disabledunless otherwise requested by the cust...

O P E R A T I N G T H E O V E N Adjusting the Cook Chamber Temperature (Figure 14 ) 1. Ensure oven is in either the Off State or Cool- down State. 2. Verify Edit Menu is enabled (for instructions see page 8). 3. Simultaneously press and hold the “UP” and “DOWN” Keys for 1 second. 4. Adjust Cook Temp...

O P E R A T I N G T H E O V E N To modify a food item:1. Ensure oven is in either the Off State or Cool- down State. 2. Verify Edit Menu is enabled (for instructions, see page 8). 3. Simultaneously press and hold the “UP” and “DOWN” Keys for 1 second. 4. Adjust the cook temperature in 25°F (15°C) in...

O P E R A T I N G T H E O V E N 7. From “Food Item” Screen (Figure 18, page 14), the operator can:a. Enter/change food group name. b. Enter/change food item name. c. Set cook time by using the “UP” and “DOWN” Keys (5-second increments). d. Choose whether to turn rack on or off by using the “UP” and ...

17 D I A G N O S I N G A N I S S U E To help in troubleshooting, this section contains information on o Fault Codes: Descriptions, Clearing Instructions,and Troubleshooting o Control Display and Key Identification o Oven States and Menu Access o Status Indicators o Testing Options F A U L T C O D E ...

18 D I A G N O S I N G A N I S S U E Troubleshooting: F1: BLOWER (Blower Running Status Bad) NO NO YES NO YES NO YES YES NO T O F R O M D E S C R I P T I O N E X P E C T E D R E S I S T A N C E Black Red Winding (A-B) 2.0-2.6 Ohms Black White Winding (A-C) 2.0-2.6 Ohms Red White Winding (B-C) 2.0-2....

F6: EC TEMP (Electrical Compartment (EC) Temperature High) This fault displays if the Electrical Compartment(EC) temperature exceeds 158°F (70°C). TheControl System checks the EC Thermocouple once per minute. NOTE: This fault will not terminate a Cook Cycle. To clear this fault:The EC temperature mu...

D I A G N O S I N G A N I S S U E S T A T U S I N D I C A T O R S Displayed in Test and Diagnostic Modes, StatusIndicators help in troubleshooting. The followingoven parts are represented by letters at the bottomof the display (Figure 26). Door (represented by “D”) Backlit = OPENNot backlit = CLOSED...

D I A G N O S I N G A N I S S U E Testing the Blower Motor (Figure 27) 1. From Screen 1 of the Test Mode Menu, press the “BLOWER” Soft Key (top left). 2. Continue pressing the “BLOWER” Soft Key (top left) to raise blower speed in 10% increments. 3. When finished, press the “BACK/STOP” Key to end the...

D I A G N O S I N G A N I S S U E Viewing the Cumulative Operating Time (Figure 35) The High h Batch oven logs the total amount oftime the oven has been on. To view this statistic:1. From Screen 1 of the Test Mode Menu, press the “DOWN” Key to toggle to Screen 2 of theTest Mode Menu. 2. Press the “A...

31 T H E C O N T R O L S Y S T E M The Control System signals, senses, commands, and actuates the oven’s other components. For aschematic that includes all Control System compo-nents, see Figure 61, page 61. For more compre-hensive hardware descriptions, see page 69. This section contains: o Service...

2 4 3 1 N U M B E R P A R T P A R T N U M B E R 1 Blower Motor Controller 100443 2 Screw – Blower Motor Controller (x4) 101688 3 Bracket – Blower Motor Controller HHB-8111 4 Screw – Blower Motor Controller Bracket (x4) 101688 32 T H E C O N T R O L S Y S T E M Blower Motor Controller (Figure 39) The...

33 T H E C O N T R O L S Y S T E M Cooling Fans (Figure 40) Located on the back of the oven, the Cooling Fansventilate air into the Electrical Compartment (via theinlet fan), then back out (via the exhaust fan). To replace a defective fan:1. Ensure “Cool Down” process is completed (“Cool Down” messa...

34 T H E C O N T R O L S Y S T E M Display (Figure 41 ) To replace a defective Display:1. Ensure “Cool Down” process is completed (“Cool Down” message will disappear upon completion)and unplug the oven. 2. Remove both side panels. 3. Remove Display Panel. 4. If ribbon cable is damaged, replace with ...

35 T H E C O N T R O L S Y S T E M 8. Attach Display Brackets to the new Display. 9. Attach new Display to Display Panel. 10. Reinstall Display Panel and reattach side panels. Display Keypad (Figure 42) The keypad is connected to I/O Control Board via14 Pin Flat Cable. To replace a defective keypad:...

36 T H E C O N T R O L S Y S T E M Door Switch (Figure 43) The Door Switch is a sensor that detects the DoorActuator and determines whether the door is openor closed. To replace a defective Door Switch:1. Ensure “Cool Down” process is completed (“Cool Down” message will disappear upon completion)and...

37 T H E C O N T R O L S Y S T E M N U M B E R P A R T P A R T N U M B E R 24 Screw – Fuse Cover 101688 25 Fuse Cover HHB-8136 26 Fuse – Class CC, 12 Amp (x2) 100592 27 Fuse Holder (x2) 100586 24 25 26 27         : Removing Fuses Fuses (Figure 44 ) The Aux Fuses protect the Control System an...

38 T H E C O N T R O L S Y S T E M N U M B E R P A R T P A R T N U M B E R 28 Screw – I/O Control Board (x4) 102910 29 Standoff – I/O Control Board (x4) 101951 30 I/O Control Board NGC-1008 31 Solid State Relay 101286 32 Screw – Solid State Relay (x2) 101688 33 Standoff – Smart Card Reader (x4) 1019...

42 T H E C O N T R O L S Y S T E M Thermocouple – Cook Chamber (Figure 47) Type K Thermocouple. Thermocouple measuresthe temperature of the recirculating impingementairflow. If the display indicates 999ºF/C, theThermocouple is “open,” resulting in an F7 Fault. To replace a defective CC Thermocouple:...

43 T H E C O N T R O L S Y S T E M Thermostat – Cooling Fan (Figure 48) The Cooling Fan Thermostat actuates the cooling fans when the Electrical CompartmentTemperature reaches 120°F (49°C). To replace a defective Cooling Fan Thermostat:1. Ensure “Cool Down” process is completed (“Cool Down” message ...

44 T H E C O N T R O L S Y S T E M Thermostat – Hi-Limit (Figure 49) The Hi-Limit Thermostat is a 250VAC, 3-Pole,manual-reset thermostat with a trip point of 572ºF(300°C). The Thermostat, which interrupts powerto the Heater Element, should never operate duringnormal operation. To replace a defective...

45 T H E C O N T R O L S Y S T E M Voltage Sensor (Figure 50) Proprietary device designed to measure incomingline voltage and distribute either 208 or 240 VACoperation. The sensor is only included in ovensoperated in North and South America. To replace a defective Voltage Sensor:1. Ensure “Cool Down...

46 T H E C O N T R O L S Y S T E M T R O U B L E S H O O T I N G Troubleshooting: No Keypad Input YES NO Replace Display Keypad. (page 35) If the problem persists, replace the I/O Control Board. (page 39) Is the keypad cable properly connected to the I/O Control Board? Correct wiring.

47 T H E C O N T R O L S Y S T E M NO Troubleshooting: No Display – Screen is Blank YES NO Does the Control beep when a key is pressed? Is wiring from the I/O Control Board to Display OK? Is J3 Connector receiving 5 VDC? (Figure 62, page 64) NO YES YES Replace Display. (page 34) NO NO YES Is the Pow...

49 N U M B E R P A R T P A R T N U M B E R 62 Door HHB-8080-2         : Removing the Oven Door 62 Rotate Hinge Retainer forward to unlocked position T H E O V E N D O O R This section contains information on the Oven Door as it pertains to o Serviceable Component Information andReplacement I...

50 T H E O V E N D O O R Door Gasket (Figure 52) To remove a damaged Door Gasket:1. Ensure “Cool Down” process is completed. (“Cool Down” message will disappear upon completion.) 2. Remove door (page 49). 3. Remove inner plate. 4. Replace damaged gasket with P/N HHB-8101. 5. Reinstall inner plate. 6...

51 T H E O V E N D O O R N U M B E R P A R T P A R T N U M B E R 66 Door Hinge 102807 67 Push Nut (x2) 101293 68 Hole Plug (x2) 101191 69 Screw – Door Hinge (1 per hinge =2 total) 101402         : Replacing a Hinge 69 68 67 66 Door Hinge (Figure 53) Spring-loaded hinge can be removed and rep...

52 Troubleshooting: “Cook Door Open” Message when Door is Closed YES NO Is wiring from Door Switch to I/O Control Board OK? T R O U B L E S H O O T I N G 52 T H E O V E N D O O R Correct wiring. If wiring is damaged, replace the Door Switch (page 36). Is the Door Switch properly installed? (Ensure i...

53 T H E I M P I N G E M E N T C I R C U I T The Impingement Circuit provides the high temperature airflow necessary to brown and cook food items. For a schematic that includes all Impingement Circuit components, see Figure 61, page 61. For more comprehensive hardware descriptions, see page 69. This...

54 T H E I M P I N G E M E N T C I R C U I T Heater Element (Figure 56) Sheathed-style/Calrod heaters. Attached to thesame cartridge, Heaters A and B can be testedindependently of one another. To replace a defective heater:1. Ensure “Cool Down” process is completed (“Cool Down” message will disappea...

55 T H E I M P I N G E M E N T C I R C U I T 8. Reinstall Insulation Shield. 9. Reattach Right Side Panel. Jetplates (Figure 57) The Jetplates help maximize food quality. DifferentJetplates facilitate different cooking results. To replace a Jetplate:1. Ensure “Cool Down” process is completed. (“Cool...

Swing Arm Assembly (Figure 58) The Swing Arm Assembly is actuated by the RackOscillator Motor. The attached oven rack oscillateswhen the Swing Arm Assembly is in motion. If the rack is not oscillating properly,1. Ensure “Cool Down” process is completed. (“Cool Down” message will disappear upon compl...

T H E F I L T E R I N G S Y S T E M 57 The filtering system helps remove debris from the Cook Chamber. However, daily maintenance anddeep cleaning are still required to ensure ovenfunctions most efficiently. For more comprehensivehardware descriptions, see page 69. This section contains o Serviceabl...

C L E A N I N G T H E O V E N D A I L Y M A I N T E N A N C E The procedures below will help in maintaining the High h Batch oven. Be sure to use onlyTurboChef Oven Cleaner. Using any other cleaningproducts can damage critical parts and may voidwarranty on those parts. Refer to Figure 60, page 60to ...

C L E A N I N G T H E O V E N Step 5: Check Grease Filters. o Plate is attached via 4 screws. o Check to see if Filters (P/N HHB-8114) need tobe replaced. To order Filters, call 800.90TURBOor your Authorized Distributor. o If necessary, remove Filters by first unhookingthe Filter Clip (P/N HHB-8115)...

63 H I G H H B A T C H S C H E M A T I C H H B O V E N S C H E M A T I C Figure 61. Inside of fold-out page. Rev 2 Board,VFD Display, Single Phase, 280/240 VAC, 60 Hz NOTE: Schematic shows the oven with door openand without power applied. Color Code (Line Voltage) BL – Blue = Line V (208/240)BR – Br...

65 C O M P R E H E N S I V E P A R T L I S T I N G P A R T P A R T N U M B E R I L L U S T R A T I O N Air Diverter Plate HHB-8030 Figure 59, page 57 Blower Motor HHB-8106 Figure 55, page 53 Blower Motor Controller 100443 Figure 39, page 32 Blower Motor Cover NGC-1081 Figure 55, page 53 Blower Motor...

69 C O M P R E H E N S I V E P A R T L I S T I N G P A R T N U M B E R D E S C R I P T I O N 100903 Nut – #10-32, Hex, Serrated, Flange, SS 100905 Nut – #1/4-20, Hex, Serrated, Flange,SS 101402 Screw – #10-32 X 1/4, PHFH 101421 Screw – #4-40 x 1/2, PHFH, 100 Deg, SS 101520 Screw – #4-40 X .25 Lg 101...

74 G L O S S A R Y O F T E R M S Oven Rack See Rack Percentage (%) Air Function that allows operator/technician to specifythe relative amount of impingement airflow (speedof Blower Motor) during each Cook Cycle event.Valid percentages are between 10 and 100%. NOTE: Maximum 100% = 7100 RPM BlowerMoto...

75 G L O S S A R Y O F T E R M S Temperature Offset Feature that provides accurate temperature readingsof where food actually cooks as opposed to wherethermometer is located. Can be modified in TestMode Menu. Test Mode Menu Menu from which technician can run diagnosticsand check statistics. The oven...