Turbochef-technologies TurboChef User Manual Page 17
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THEORY OF OPERATION
8
GLOSSARY OF COMMON OPERATING TERMS
Off State
All the oven’s control systems are off and the cook cavity temperature is below 150
º
F (66
º
C).
Cool Down
A subset of the
OFF STATE. During COOL DOWN
, the oven will circulate the main convection blower until
the cook cavity temperature is below 150
º
F (66
º
C).
Ready State
The oven has successfully warmed to the predefined set temperature. At this point the oven control is
ready to receive cook commands via the keypad. The oven will maintain the set temperature in the
READY STATE.
Set Temperature, Cook Cavity (CCSP)
Predefined temperature of the cook cavity at which the oven cooks.
Set Temperature, IR Element (IRSP and IRSI)
IRSP is the set temperature of the IR element during a given cook cycle. Settings are determined on a
per-recipe basis. IRSI is the set temperature of the IR element during the READY STATE (or “idle”). IRSI
setting can be adjusted in the
TEST MODE (page 16).
Actual Temperature, Cook Cavity (TCC)
The actual temperature registered by the cook cavity thermocouple.
Actual Temperature, IR Element (TIR)
The actual temperature registered by the IR element.
Edit Mode
Enables the user to change recipe and CCSP/IRSP temperature settings.
Warm-Up
The mode in which the oven warms itself to the set temperature.
Soak
The mode in which the oven temperature has reached the CCSP, and remains in warmup for an addi-
tional 8 minutes to allow cook cavity surfaces to warm. The oven will proceed to soak only if warm-up
was initiated when TCC < (CCSP - 126
º
F) or TCC < (CCSP - 66
º
C).
Cook Cycle
A period of operation as defined by a recipe.
Test Mode
A special diagnostic mode that enables the service technician to turn on and off all oven systems
independent of one another, check oven statistics, and set the IRSI.
- TurboChef Service Manual 1
- For further information call: 2
- +1 214.379.6000 2
- NEVER attempt to 3
- Table of Contents 4
- IMPORTANT SAFETY INSTRUCTIONS 7
- GENERAL SAFETY INFORMATION 7
- REDUCING FIRE RISK 7
- EXCESSIVE MICROWAVE ENERGY 8
- GROUNDING INSTRUCTIONS 8
- POWER CORD REPLACEMENT 8
- 1 year parts and labor 10
- VAC, 60 Hz, 1 phase 10
- 4” (102 mm) adjustable legs 10
- 304 stainless steel line 10
- POWER INPUT 11
- TURBO / +1 214.379.6000 13
- 1 2 3 4 5 14
- Theory of Operation 15
- THEORY OF OPERATION 16
- CONTROL SYSTEM 16
- MICROWAVE SYSTEM 16
- CONVECTION SYSTEM 16
- BOTTOM IR AND CCV 16
- Fault Codes 19
- TO VIEW FAULT CODES 20
- FAULT CODE DEFINITIONS 20
- FAULT CODES 21
- The Control System 22
- CONTROL 23
- TEST MODE 24
- TEST FUNCTION OPTIONS 25
- W) status indicator is not 26
- DIAGNOSTIC MODE 26
- (CCSP) 26
- THE CONTROL SYSTEM 27
- FIGURE 15: Done Screen 28
- CONTROL SYSTEM PANEL PARTS 30
- ISSUE RESOLUTION 31
- 800.90TURBO 33
- The Microwave System 34
- MONITOR CIRCUIT DESCRIPTION 35
- MICROWAVE SYSTEM PARTS 36
- THE MICROWAVE SYSTEM 37
- MICROWAVE SYSTEM COMPONENTS 38
- WAVE GUIDE COVER REPLACEMENT 39
- WAVE GUIDE REPLACEMENT 40
- REPLACEMENT 40
- FIGURE 24: High Voltage Diode 42
- FIGURE 25: Magnetron 42
- The Oven Door 47
- OVEN DOOR PARTS 48
- ADJUSTING THE OVEN DOOR 49
- ADJUSTMENTS AND PARTS 50
- MONITOR SAFETY SWITCH PARTS 51
- = 0.020” 51
- Old Switch Setup 52
- New Switch Setup 53
- FIGURE 35: Oven Door Assembly 55
- PART TORQUE 56
- SCREW TORQUE CHART 56
- The Convection Circuit 58
- CONVECTION CIRCUIT COMPONENTS 59
- THE CONVECTION CIRCUIT 60
- IR Element and Catalytic 63
- Converter 63
- COMPONENTS 64
- Schematics and Schematic 66
- Components 66
- SCHEMATIC PARTS 67
- TEST POINT LOCATIONS 67
- I/O BOARD SCHEMATIC 68
- 41: NGC (Tornado) Schematic 69
- NGC (UK) SCHEMATIC 70
- 43: NGCEW (Tornado) Schematic 71
- 44: NGCED (Tornado) Schematic 72
- NGC (BRAZIL) SCHEMATIC 73
- Service Parts and 74
- Illustrations 74
- FILAMENT AND 79
- HIGH VOLTAGE 79
- TERMINALS 79
- APPLY HI-TEMP 81
- GREASE TO AREA 81
- FIGURE 35: OVEN DOOR ASSEMBLY 83
- TURBO or +1 214-379-6000 85
- Comprehensive Part List 89
- ITEM DESCRIPTION 90
- +1 214-379-6000 94
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