TurboChef HHB-8028 manual

Acceler ating the W orld of Cooking TM High h Batch Service Manual           800.90 TURBO P ar t N umber: HHB-8707/Revision A/June 2005[...]

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F or further infor mation call: C ustomer Ser vice at . S ales & Mar keting at . Acceler ating the W orld of Cooking TM[...]

The information contained in this manual is important for the proper installation, use, maintenance, and repair of this o ven. Follo w these procedures and instructions to ensure satisfactory baking results and years of trouble-free service. Errors – descriptive, typographic, or pictorial – ar e subject to correction. Specifications ar e subjec[...]

Safety Instructions Important Safety I nformation – Please Read F irst i General Safety I nformation i Reducing F ire Risk i P reventing Oven Damage ii G rounding Instructions ii P ow er Cord Replacement ii Theory of Operation, Specifications and Installation Theory of Operation 1 Certifications 1 Dimensions 1 Construction 2 E lectrical S pecific[...]

P rogramming Recipes 11 Adjusting the Cook Chamber T emperature 12 M odifying Recipes 12 Loading M enu from Smart Card 14 Saving M enu to Smart Card 14 Checking Recipe Counter 16 Diagnosing an Issue F ault Codes: Descriptions, Clearing Instructions, 17 and T roubleshooting F1: BLO WER (Blower Running S tatus Bad) 17 F2: LO W TEMP (Cook T emperature[...]

Rack Oscillator M otor 40 Thermocouple – Cook Chamber 42 Thermocouple – Electrical Compartment 42 Thermostat – Cooling F an 43 Thermostat – Hi-Limit 44 V oltage S ensor 45 T roubleshooting 46 N o Keypad Input 46 N o Display – Screen is Blank 47 The Oven Door Serviceable Components 49 Door Gasket 50 D oor Hinge 51 Door S witch 51 T roubles[...]

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i SAFETY INSTRUCTIONS I MPORT ANT SAFETY INFORMATION – PLEASE READ FIRST Improper installation, adjustment, alteration, service, or maintenance of this equipment can cause property damage, injury , or death. Thoroughly read the installation, operating, and maintenance instructions before installing or servicing this equipment. Strictly adhere to [...]

ii SAFETY INSTRUCTIONS P REVENTING OVEN DAMA GE o When servicing this appliance, do not tear insulation to get to components. Rather , find the edge of the insulation and remo ve the tape that holds it in place. o Operate the ov en only when food is in the Cook Chamber . o Clean the oven daily . o Clean the oven only with T urboChef Oven Cleaner . [...]

Theor y of Oper ation, Specifications, and Installation[...]

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1 THEORY OF OPERA TION, SPECIFICATIONS AND INS TALLA TION T HEORY OF OPERA TION The T urboChef ® High h B atch speed cook oven uses high heat transfer rates developed by force air impingement to rapidly cook food. The High h batch utilizes top and bottom J etplates that have been optimized for specific food items. The plates can be easily remo ved[...]

2 THEORY OF OPERA TION, SPECIFICATIONS AND INS TALLA TION C ONSTRUCTION Exterior o S tainless steel front, top, sides, and back o 4 ′′ (102 mm) matte black legs o Cool-to-touch coated handle o Remo vable drain pan o Remo vable cook door for cleaning Interior o 304 stainless steel interior o Drain system helps prev ent debris buildup o Remo vabl[...]

3 THEORY OF OPERA TION, SPECIFICATIONS AND INS TALLA TION 2. Lift from bottom of ov en. 3. Place o ven on surface at least 30 ′′ (762 mm) deep and capable of supporting 167 lbs (76 kg). Setup Once ov en is properly positioned on the counter: 1. Remo ve packing material and/or foreign objects from within Cook Chamber . 2. Install Oven Rack by pl[...]

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Oper ating the Ov en[...]

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5 O PERA TING THE OVEN This section contains information on: o Contr ol Display and K ey Identification o P ow ering up o P ow ering do wn o Cooking Instructions o Cooking Options o P rogramming Recipes o U sing the Options Menu CONTROL DISPLA Y AND KEY IDENTIFICATION R efer ence F igure 2. 1. Display Displays operational information. 2. S oft k e [...]

Menu Descriptions 1. Edit M enu M enu from which operator/technician can modify Cook Chamber temperature, recipes, and recipe settings. 2. Options M enu M enu from which operator can enable/disable various operative functions. 3. Recipe M enu (or “Menu ”) H ighest superset of recipes, the menu consists of 12 food groups of 6 recipes, or 72 r ec[...]

O PERA TING THE OVEN LEFT RIGHT   : Selecting a F ood Group P ress the Soft Key that corresponds to the desired food group. I n this example, pressing the top right Soft Key would access all F ood Items in the “1st Gr oup ” . NO TE: Press the “DO WN” Key to view F ood Gr oups 7-12. L EFT R IGHT   : [...]

O PERA TING THE OVEN USING THE OPTIONS MENU U se the O ptions M enu to: o Enable/disable the Edit M enu o Erase Recipe M enu o E nable/disable the W rite Car d F unction o Enable/disable the T ime Screen o E nable/disable the Done Screen o Enable/disable Demonstration M ode T o access the Options Menu: 1. E nsur e the o v en is in either Cool-do wn[...]

O PERA TING THE OVEN Erasing the Recipe Menu (Figure 9) E rasing the Recipe M enu will permanently delete currently-stored r ecipes and recipe settings. T o erase the menu: 1. F rom the Options M enu, press the “ERA SE MENU” Soft Key (middle left) to erase menu. 2. P r ess the “ENTER” Key to confirm or the “BACK/ST OP” Key to cancel. 3.[...]

Enabling/Disabling Time Screen (Figur e 11 ) E nabling the T ime Screen function allows the operator to adjust the T otal Cook T ime before initiating a Cook C ycle. Disabling it prevents the operator from doing so and helps ensure originally- programmed cook times remain unalter ed. By default, the T ime Screen is enabled unless other wise r eques[...]

O PERA TING THE OVEN Enabling/Disabling Demonstration Mode (Figure 13) E nabling Demonstration M ode allows the operator to view/show every operational aspect of the oven without the oven actually heating up . By default, the D emonstration Mode is disabled unless otherwise requested by the customer . T o enable/disable D emonstration M ode: 1. F r[...]

O PERA TING THE OVEN Adjusting the Cook Chamber T emperature (Figure 14) 1. Ensure o ven is in either the Off State or Cool- down S tate. 2. V erify E dit Menu is enabled (for instructions see page 8). 3. Simultaneously pr ess and hold the “UP” and “DO WN” K eys for 1 second. 4. Adjust Cook T emperature in 25°F (15ºC) incre- ments by usin[...]

O PERA TING THE OVEN T o modify a food item: 1. Ensure o ven is in either the Off State or Cool- down S tate. 2. V erify E dit Menu is enabled (for instructions, see page 8). 3. S imultaneously pr ess and hold the “UP” and “DO WN” Keys for 1 second. 4. Adjust the cook temperature in 25°F (15°C) increments by using “UP” and “DO WN”[...]

O PERA TING THE OVEN 7. F rom “F ood Item ” Screen (F igure 18, page 14), the operator can: a. Enter/change food group name. b . Enter/change food item name. c. S et cook time b y using the “UP” and “DO WN” Keys (5-second increments). d. Choose whether to turn rack on or off b y using the “UP” and “DO WN” Keys. e. Specify E vent[...]

OPERA TING THE OVEN   : I nser ting Smart Car d into Reader Smart Card Reader Slot Smart Card - Notice orientation of chip LOADING . . . DONE FROM CARD   : Loading from S mar t Card   : Saving to S mar t Card SAVING . . .DONE TO CARD LEFT R IGHT L OADING . . . FROM CARD S tep: [...]

O PERA TING THE OVEN 2. V erify W rite Card function is enabled (for instructions, see page 9). 3. Insert S mar t Card into S mart Card Reader Orient card as sho wn in Figur e 19. 4. Pr ess the bottom left S oft Key . 5. P ress middle left Soft Key to SA VE MENU T O CARD (F igure 20). 6. P r ess the “ENTER” Key to confirm or the “BACK/ST OP?[...]

Diagnosing an Issue[...]

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17 DIAGNOSING AN ISSUE T o help in troubleshooting, this section contains information on o F ault Codes: Descriptions, Clearing Instructions, and T roubleshooting o Control Display and K ey Identification o Oven S tates and Menu Access o S tatus Indicators o T esting Options F AULT CODES: DESCRIPTIONS, CLEARING INS TRUCTIONS, AND TROUBLESHOOTING Th[...]

18 DIAGNOSING AN ISSUE T roubleshooting: F1: BLOWER (Blower Running Status Bad) NO NO YES NO YES NO YES YES NO TO FROM DESCRIPTION EXPECTED RESIST ANCE Black Red Winding (A-B) 2.0-2.6 Ohms B lack White W inding (A-C) 2.0-2.6 Ohms Red White Winding (B-C) 2.0-2.6 Ohms Black, R ed or White G reen Windings to Chassis Open  : M o[...]

NO NO 19 DIAGNOSING AN ISSUE T roubleshooting: F2: LOW TMP (Cook T emperature Low) YES NO Is wiring fr om the Door S witch to the I/O Control Board OK? (See page 61 for schematic.) Replace D oor Switch. (page 36) If problem persists, replace the I/O Control Board. (page 39) Does the D isplay read “Cook Door Open ” when the door is closed? YES N[...]

F6: E C TEMP (Electrical Compartment (EC) T emperature High) This fault displays if the E lectrical Compartment (EC) temperatur e ex ceeds 158°F (70°C). The Contr ol System checks the EC Thermocouple once per minute. NOTE: This fault will not terminate a Cook Cy cle. T o clear this fault: The EC temperature must recede belo w 158°F (70°C). T r [...]

NO 21 DIAGNOSING AN ISSUE T roubleshooting: F6: EC TEMP (Electrical Compartment (EC) T emperature High) YES NO Does the o ven have room to ventilate? (not tightly enclosed by other appliances or fixtures?) Is the o ven in an area of moderate temperature (120ºF (49ºC) or cooler)? YES Ar e both Cooling F ans rotating? NO Relocate o ven to cooler ar[...]

NO YES R eplace I/O Contr ol Boar d. (page 39) Correct wiring. NO YES YES 22 DIAGNOSING AN ISSUE T roubleshooting: F8: HEA T LOW YES NO Is the H i-Limit Thermostat tripped? Is the B lower M otor blowing air? YES Reset and determine why it tripped – excess grease buildup , etc. (F igur e 25, page 20) NO See page 17 to troubleshoot F1: BL O WER (Bl[...]

D IAGNOSING AN ISSUE ST ATUS INDIC ATORS Displayed in T est and Diagnostic Modes, S tatus Indicators help in troubleshooting. The follo wing ov en par ts ar e r epr esented by letters at the bottom of the display (F igur e 26). Door (represented by “D”) Backlit = OP EN N ot backlit = CLOSED Heater A (represented by left “H”) Backlit = OFF N[...]

D IAGNOSING AN ISSUE T esting the Blower Motor (F igu re 2 7) 1. F rom Screen 1 of the T est Mode M enu, press the “BLO WER ” Soft K ey (top left). 2. Continue pressing the “BLO WER” Soft Key (top left) to raise blower speed in 10% incr ements. 3. When finished, press the “BACK/ST OP” Key to end the test and exit the T est M ode M enu. [...]

D IAGNOSING AN ISSUE NO TE: Adjustments can be made only in F ahrenheit. (5ºF equals approximately 2.8ºC.) NO TE: At 20°F , pressing the “OFFSET” Soft K ey rolls the T emperature Offset back to 0°F . 3. P ress “ENTER” to confirm. 4. When finished, press the “BACK/ST OP” Key to exit the T est Mode M enu. Checking Heaters A and B (Fig[...]

D IAGNOSING AN ISSUE LEFT RIGHT  : Checking Heater B Step: 1/2 Step: 3 Simultaneously press and hold for 1 second to get to the T est M ode Menu (Screen 1). NO TE: Oven must be in the O ff or Cool-down S tate. In this example, H eater B is on.  : T esting the Rack O scillator L EFT RIGHT S tep: 1/2 St[...]

D IAGNOSING AN ISSUE T esting the R ack Oscillator (Figure 32) NO TE: The Oven Rack will not oscillate if it is not properly set on the support pins. T o test the Rack O scillator: 1. F rom Screen 1 of the T est Mode M enu, press the “RA CK OSC” Soft Key (bottom right). 2. When finished testing, press the “RA CK OSC” Soft Key (bottom right)[...]

D IAGNOSING AN ISSUE Viewing the Cumulative Operating Time (Figur e 35 ) The H igh h B atch oven logs the total amount of time the oven has been on. T o view this statistic: 1. F rom Screen 1 of the T est M ode Menu, p re ss the “DO WN” Key to toggle to Screen 2 of the T est Mode M enu. 2. P ress the “ACCUM” Soft Key (bottom left) to view c[...]

D IAGNOSING AN ISSUE  : V iewing/E ntering the S erial N umber L EFT RIGHT Step: 2 S erial N umber will be displayed.  : Changing the F ahrenheit/Celsius Option LEFT RIGHT Step: 2 In this example, the temperature is being measured in F ahrenheit. Step: 3 S imultaneously press and hold for 1 second to [...]

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The Contr ol System[...]

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31 THE CONTROL SYS TEM The Control System signals, senses, commands, and actuates the oven ’ s other components. F or a schematic that includes all Control System compo- nents, see F igure 61, page 61. F or more compre- hensive hardwar e descriptions, see page 69. This section contains: o Serviceable Component Information and Replacement I nstr u[...]

2 4 3 1 NUMBER P ART P ART NUMBER 1 B lo w er M otor Contr oller 100443 2 Scr e w–B lo w er M otor Contr oller (x4) 101688 3 B racket – B lo w er M otor Contr oller HHB-8111 4 Scr e w–B lo w er M otor Contr oller Bracket (x4) 101688 32 THE CONTROL SYS TEM Blower Motor Controller (Figure 39) The proprietary Brushless DC Blower M otor Controlle[...]

33 THE CONTROL SYS TEM Cooling F ans (Figure 40) Located on the back of the oven, the Cooling F ans ventilate air into the Electrical Compartment (via the inlet fan), then back out (via the exhaust fan). T o replace a defective fan: 1. Ensure “Cool Do wn ” process is completed (“Cool Do wn ” message will disappear upon completion) and unplu[...]

34 THE CONTROL SYS TEM Display (Figure 41) T o replace a defective Display: 1. Ensure “Cool Do wn ” process is completed (“Cool Do wn ” message will disappear upon completion) and unplug the oven. 2. Remo ve both side panels. 3. Remo ve Display P anel. 4. If ribbon cable is damaged, replace w ith P/N 103024 (not pictured) and jump to step 1[...]

35 THE CONTROL SYS TEM 8. Attach Display B rackets to the new Display . 9. Attach new Display to D isplay Panel. 10. Reinstall D isplay Panel and r eattach side panels. Display K eypad (Figure 42) The keypad is connected to I/O Control Board via 14 Pin F lat Cable. T o replace a defective keypad: 1. Ensure “Cool Do wn ” process is completed (?[...]

36 THE CONTROL SYS TEM Door Switch (Figure 43) The Door S witch is a sensor that detects the Door Actuator and determines whether the door is open or closed. T o replace a defective Door S witch: 1. Ensure “Cool Do wn ” process is completed (“Cool Do wn ” message will disappear upon completion) and unplug the oven. 2. Remo ve both side pane[...]

37 THE CONTROL SYS TEM NUMBER P ART PART NUMBER 24 Screw – F use Cover 101688 25 Fuse Co ver HHB-8136 26 Fuse – Class CC, 12 Amp (x2) 100592 27 Fuse H older (x2) 100586 24 25 26 27  : R emoving F uses F uses (Figure 44) The Aux F uses protect the Control System and Blo wer Motor . CAUTION: R eplace fuses with only class [...]

38 THE CONTROL SYS TEM NUMBER P ART P ART NUMBER 28 Scr e w– I/O Contr ol Boar d (x4) 102910 29 S tandoff – I/O Contr ol Boar d (x4) 101951 30 I/O Contr ol Boar d NGC-1008 31 S olid S tate R elay 101286 32 Scr e w–S olid State R elay (x2) 101688 33 S tandoff – S mar t Card Reader (x4) 101947 34 Scr e w–S mart Card R eader (x4) 102911 35 S[...]

39 THE CONTROL SYS TEM Refer to the Component Plate Assembly (F igure 45) when replacing o I/O Control Board o P ow er Supply o Relay o S mar t Card R eader o Solid S tate Relay I/O Control Board (Figure 45) The I/O Control Board contr ols all aspects of oven operation. T o replace a defective I/O Control Boar d: 1. Ensure “Cool Do wn ” process[...]

40 THE CONTROL SYS TEM Solid State Relay (SSR) (Figure 45, P age 38) The 240 V AC, D ual 40 Amp Solid State R elay actuates the Heater E lement. When the SSR is actuated, the (-) control input will go to 0.00 VDC. When not actuated, the control input will read -24.00 VDC. T o replace a defective SSR: 1. Ensure “Cool Do wn ” process is completed[...]

41 THE CONTROL SYS TEM NUMBER P ART P ART NUMBER 41 Rack O scillator M otor HHB-8135 42 C rank – Rack O scillator M otor HHB-8045 43 Scr e w– Rack O scillator M otor (x2) 101672 44 W asher – Rack O scillator M otor 102451 45 R etaining Ring – Rack O scillator M otor 101297 46 B racket – Rack O scillator M otor HHB-8049 47 Scr e w– Rack [...]

42 THE CONTROL SYS TEM Thermocouple – Cook Chamber (Figure 47) T ype K Thermocouple. Thermocouple measures the temperature of the recir culating impingement airflow . If the display indicates 999ºF/C, the Thermocouple is “ open,” resulting in an F7 F ault. T o replace a defective CC Thermocouple: 1. Ensure “Cool Do wn ” process is comple[...]

43 THE CONTROL SYS TEM Thermostat – Cooling F an (Figure 48) The Cooling F an Thermostat actuates the cooling fans when the Electrical Compartment T emperature reaches 120° F ( 49° C). T o replace a defective Cooling F an Thermostat: 1. Ensure “Cool Do wn ” process is completed (“Cool Do wn ” message will disappear upon completion) and [...]

44 THE CONTROL SYS TEM Thermostat – Hi-Limit (Figure 49) The Hi-Limit Thermostat is a 250V AC, 3-P ole, manual-reset thermostat with a trip point of 572ºF (300°C). The Thermostat, which interrupts power to the Heater E lement, should never operate during normal operation. T o replace a defective Hi-Limit Thermostat: 1. Ensure “Cool Do wn ” [...]

45 THE CONTROL SYS TEM V oltage Sensor (Figure 50) P roprietar y device designed to measure incoming line voltage and distribute either 208 or 240 V AC operation. The sensor is only included in ovens operated in N or th and South America. T o replace a defective V oltage Sensor: 1. Ensure “Cool Do wn ” process is completed (“Cool Do wn ” me[...]

46 THE CONTROL SYS TEM T ROUBLESHOOTING T roubleshooting: No Ke ypad Input YES NO Replace Display Keypad. (page 35) I f the pr oblem persists, replace the I/O Control Board. (page 39) Is the keypad cable pr operly connected to the I/O Control Board? Correct wiring.[...]

47 THE CONTROL SYS TEM NO T roubleshooting: No Display – Screen is Blank YES NO Does the Control beep when a key is pressed? I s wiring from the I/O Contr ol Boar d to Display OK? I s J3 Connector receiving 5 VDC? (F igur e 62, page 64) NO YES YES Replace D isplay . (page 34) NO NO YES I s the P o wer S upply output correct VDC? (see page 2 for e[...]

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The Oven Door[...]

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49 NUMBER P ART P ART NUMBER 62 D oor HHB-8080-2  : Remo ving the Oven Door 62 Rotate Hinge Retainer forward to unlocked position THE OVEN DOOR This section contains information on the Oven Door as it pertains to o Serviceable Component Information and Replacement I nstr uctions o P arts and P art Numbers o T roubleshooting [...]

50 THE OVEN DOOR Door Gasket (Figure 52) T o remove a damaged D oor Gasket: 1. E nsure “Cool Down ” process is completed. (“Cool Do wn ” message will disappear upon completion.) 2. Remo ve door (page 49). 3. Remo ve inner plate. 4. Replace damaged gasket with P/N HHB-8101. 5. Reinstall inner plate. 6. Reattach o ven door . 7. Return hinge r[...]

51 THE OVEN DOOR NUMBER P ART PART NUMBER 66 Door H inge 102807 67 P ush Nut (x2) 101293 68 Hole Plug (x2) 101191 69 Screw – Door H inge (1 per hinge =2 total) 101402  : Replacing a H inge 69 68 67 66 Door Hinge (Figure 53) S pring-loaded hinge can be removed and replaced as an entire unit. T o replace a Door H inge: 1. E [...]

52 T roubleshooting: “Cook Door Open” Message when Door is Closed YES NO Is wiring fr om Door Switch to I/O Control Board OK? T ROUBLESHOOTING 52 THE OVEN DOOR Correct wiring. If wiring is damaged, replace the Door S witch (page 36). Is the D oor Switch properly installed? (Ensure it is not loose or cracked.) YES NO R eset D oor S witch. Replac[...]

The Impingement Cir cuit[...]

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53 THE IMPINGEMENT CIRCUIT The Impingement Circuit pro vides the high temperature airflow necessary to brown and cook food items. F or a schematic that includes all Impingement Circuit components, see F igure 61, page 61. F or more comprehensive hardwar e descriptions, see page 69. This section contains o Serviceable Component Information and Repla[...]

54 THE IMPINGEMENT CIRCUIT Heater Element (Figure 56) Sheathed-style/Calrod heaters. A ttached to the same cartridge, Heaters A and B can be tested independently of one another . T o replace a defective heater: 1. Ensure “Cool Do wn ” process is completed (“Cool Do wn ” message will disappear upon completion) and unplug the oven. 2. Remo ve[...]

55 THE IMPINGEMENT CIRCUIT 8. Reinstall I nsulation Shield. 9. Reattach Right S ide Panel. Jetplates (Figure 57) The J etplates help maximize food quality . Different J etplates facilitate different cooking results. T o replace a J etplate: 1. E nsure “Cool Down ” process is completed. (“Cool Do wn ” message will disappear upon completion.)[...]

Swing Arm Assembly (Figure 58) The S wing Arm Assembly is actuated by the Rack Oscillator M otor . The attached oven rack oscillates when the S wing Arm Assembly is in motion. If the rack is not oscillating properly , 1. E nsure “Cool Down ” process is completed. (“Cool Do wn ” message will disappear upon completion.) 2. Ensure r ecipe sett[...]

The Filtering System[...]

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THE FIL TERING SYSTEM 57 The filtering system helps remo ve debris from the Cook Chamber . H owever , daily maintenance and deep cleaning are still requir ed to ensure oven functions most efficiently . F or more comprehensive hardwar e descriptions, see page 69. This section contains o Serviceable Component Information and Replacement I nstr uction[...]

58 THE FIL TERING SYSTEM 3. Remo ve Jetplates (page 55). 4. Remo ve Air Diverter Plate. 5. Remo ve the Catalytic Converter . 6. Clean the Catalytic Converter with T urboChef Oven Cleaner (P/N 103180). CAUTION: DO NO T use a substitute cleaner . 7. Rinse thoroughly with distilled water . CAUTION: U se distilled water only . 8. Let the Catalytic Conv[...]

Cleaning the Oven[...]

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CLEANING THE OVEN D AIL Y MAINTENANCE The procedures belo w will help in maintaining the High h B atch oven. Be sure to use only T urboChef Oven Cleaner . Using any other cleaning products can damage critical parts and may void warranty on those parts. Refer to F igure 60, page 60 to view the Cook Chamber components. Supplies and Equipment o T urbo[...]

C LEANING THE OVEN Step 5: Check Gr ease Filters. o Plate is attached via 4 screws. o Check to see if F ilters (P/N HHB-8114) need to be r eplaced. T o or der Filters, call 800.90TURBO or y our A uthorized Distributor . o I f necessar y , remove F ilters by first unhooking the F ilter Clip (P/N HHB-8115) which is attached at the center of the Air D[...]

High h Batch Schematic[...]

61 HIGH H BATCH SCHEMA TIC  : High h Batch Schematic BL 3 BR 4 GY 1 G Y 2 BR 4 BL 3 BR 6 B R 5 BL 8 BL 7 BR 13 BL 17 B L 9 BR 10 BR 12 BR 11 B R 14 BL 16 BL 15 1 1 2 2 3 3 4 4 BL 18 BR 19 BR 20 BR 21 BL 22 BL 24 BL 23 BL 28 BL 27 BL 25 BL 26 C2/C3 BR 29 F1 F2 F1: 12 AMPS CLASS CC (100595) F2: 12 AMPS CLASS CC (100595) RD-19 [...]

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63 HIGH H BA TCH SCHEMATIC H HB OVEN SCHEMA TIC F igure 61. Inside of fold-out page. Rev 2 Boar d, VFD Display , Single P hase, 280/240 V AC, 60 Hz NO TE: Schematic shows the oven with door open and without power applied. Color Code (Line V oltage) BL – Blue = Line V (208/240) BR – Bro wn = Line V (208/240) OR – Orange = 240 Line Input for T [...]

64 HIGH H BA TCH SCHEMATIC  : I/O Control Board and T est P oint Locations RJ11 RJ11 J2 J6 BR1 J4 + U15 R51 D6 P1 P3 J3 SKP1[...]

Comprehensiv e P ar t Listing[...]

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65 COMPREHENSIVE P ART LISTING P ART PART NUMBER ILLUSTRA TION Air Diverter Plate HHB-8030 F igure 59, page 57 Blow er Motor HHB-8106 F igure 55, page 53 Blow er Motor Controller 100443 Figur e 39, page 32 Blow er Motor Cover NGC-1081 F igure 55, page 53 Blow er Motor M ounting Plate HHB-8009 N ot labeled Bracket – Blo wer Motor Controller HHB-81[...]

P ART P ART NUMBER ILLUSTRA TION Electrical Plate HHB-8134 F igure 50, page 45 F ilter (x2) HHB-8114 F igure 59, page 57 F ilter Clip (x2) HHB-8115 F igure 59, page 57 Fuse – Class CC, 12 AMP (x2) 100592 Figure 44, page 37 Fuse Co ver HHB-8136 F igure 44, page 37 Fuse H older (x2) 100586 F igure 44, page 37 Gr ommet – Electrical Plate 100644 F [...]

67 COMPREHENSIVE P ART LISTING P ART P ART NUMBER ILLUSTRA TION P ower Cor d Mounting Bracket NGC-1167 N ot labeled P ower S upply 101206 Figur e 45, page 38 P ush Nut (x2) 101293 F igure 53, page 51 Rack HHB-8104 Figure 57, page 55 Rack – Offset (Accessory) HHB-8118 N ot labeled Rack Oscillator M otor HHB-8135 F igure 46, page 41 Relay 101273 F [...]

P ART P ART NUMBER ILLUSTRA TION S crew – Side P anel (8 per panel) 101688 Figure 41, page 34 Screw – S mar t Card R eader (x4) 102911 F igure 45, page 38 Screw – Solid S tate Relay (x2) 101688 F igure 45, page 38 Screw – T erminal B lock (x2) 102963 Not labeled Screw – Thermocouple – Cook Chamber 101688 F igure 47, page 42 Screw – Th[...]

69 COMPREHENSIVE P ART LISTING P ART NUMBER DESCRIPTION 100903 N ut – #10-32, Hex, Serrated, F lange, SS 100905 N ut – #1/4-20, Hex, Serrated, F lange,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 101663 Screw – #8, T ype A X 2-1/4, PHFH, S heet Metal, SS 101672 Screw ?[...]

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Glossar y of T erms[...]

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71 GLOSSARY OF TERMS Air Dif fuser Plate Accessory plate that covers openings in the jetplate for very delicate cooking. Air Diverter Plate Covers the Catalytic Conv er ter . Blower Motor Located in back of oven, the B lower M otor actuates the impingement process. Actuated b y B lower M otor Controller . Blower Motor Controller (BMSC) P roprietary[...]

72 GLOSSARY OF TERMS Diagnostic Mode F unction that displays diagnostic information during all operative activities. Display Screen through which operator and o ven interact. Display K eypad The primary inter face for the operator . Done S creen Screen at the end of a Cook C ycle from which the operator can save an adjusted cook time or cook an ite[...]

73 GLOSSARY OF TERMS F ault Log Located in T est Mode, the F ault Log (or “F ault Code Counter”) lists each fault code and number of times oven has encounter ed each. The F ault Log logs up to 255 instances per fault before rolling back to zero . Filter Easy-to-remo ve filters help prolong the life of the Catalytic Converter by trapping excess [...]

74 GLOSSARY OF TERMS Oven Rack See Rack Percentage (%) Air F unction that allows operator/technician to specify the relative amount of impingement airflow (speed of Blo wer Motor) during each Cook C ycle event. V alid percentages are betw een 10 and 100%. NO TE: Maximum 100% = 7100 RPM Blow er M otor S peed. Blower M otor Speed scale is linear . Pe[...]

75 GLOSSARY OF TERMS T emperature Of fset F eature that provides accurate temperatur e readings of where food actually cooks as opposed to where thermometer is located. Can be modified in T est M ode Menu. T est Mode Menu M enu from which technician can r un diagnostics and check statistics. The oven must be in either the Off S tate or Cool-down St[...]

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77 SUBJECT INDEX Air Diverter Plate P art number 57, 65 Remo ving when ser vicing Catalytic Converter 57-58 Blower Motor Cover 53 Description 53 M ounting Plate (par t number) 65 P art number 53, 65 R eplacement instructions 53 T esting 24 T roubleshooting – F1 F ault 17 Blower Motor Controller (BMSC) Bracket to which attached (part number) 32, 6[...]

78 SUBJECT INDEX Display Bracket (part number) 34, 65 Illustration 34 P art number 34, 65 Replacement instructions 34 T roubleshooting 34 Display K eypad Description 35 Illustration 35 P ar t number 35, 65 Replacement instructions 35 T roubleshooting 46 Display Panel See P anels Done Screen D escription 7 Enabling/disabling 10 Options 7 Door See Ov[...]

79 SUBJECT INDEX Electrical Specifications Canada 2 Eur ope/Asia/Pacific 2 N or th America (except Canada)/ South America 2 U nited Kingdom/Ireland 2 Error Message F8 F ault 20 E vent Description 14 M odifying 12-14 P ercentage Air 14 P ercentage T ime 14 F ault Code – F1: Blower Running Status Bad Clearing instructions 17 D escription 17 T able [...]

80 SUBJECT INDEX Hardware Descriptions 69 Heater Element Description 54 P art number 54, 66 Replacement instructions 54 T esting 25 Heater Insulation Shield Illustration 54 P ar t number 54, 66 Hi-Limit Thermostat S ee Thermostat – Hi-Limit I/O Control Board Description 39 Illustration 38, 64 P ar t number 38, 66 Replacement instructions 39 T est[...]

81 SUBJECT INDEX Programming Recipes Adjusting the Cook Chamber T emperature 12 Checking Recipe Counter 16 Loading a M enu from a Smart Card 14 M odifying Recipes 12-14 Saving a M enu to a Smart Card 14 Rack Cleaning instructions 59-60 I nstalling 3 Offset (Accessory) part number 67 P art number 55, 67 Rack Oscillator Motor Bracket to which attache[...]

SUBJECT INDEX Status Indicators Description 23 Enabling/disabling for all operative activities (via Diagnostic M ode) 27 Illustration 23 Swing Arm Assembly Accessing 56 Bushing (part number) 56, 65 Covers (part numbers) 65 D escription 56 Drag Link (part number) 56, 65 Illustration 56 P ar t number 56, 68 P art number (with Link Bar) 56, 68 W asher[...]

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F or further infor mation call: C ustomer Ser vice at . Sales and M arketing at . Par t N umber: HHB-8707/R evision A/J une 2005 Country Code: NA Acceler ating the W or ld of Cooking TM H eadquar ters Six Concourse P arkway S uite  Atlanta, Georgia  .[...]