Turbo Chef Technologies i5 service manual Control System

Page 49

Control System

This section contains information about the following components:

-Control board

-Display

-Electrical compartment cooling fans

-Electrical compartment cooling fan thermostat

-Electrical compartment thermocouple

-EMI Filter

-Fuses

-High-limit thermostat

-Keypad

-Magnetron cooling fans

-Magnetron thermostats

-Power Supply

-Relay (K1 - Filament)

-Relay (K2 - Anode)

-Relay (K3 - Monitor)

-Relay (K6 - Voltage)

-Relay (K7 - Mag fan)

-Relay (K8 - Stirrer)

-RTD

-Smart card reader

-Solid state relay (K4/K5 - Heater)

-Speaker

-USB port

-Voltage sensor

-Wire harness

Control Board

The control board controls each electrical compo- nent of the oven. See page 51 for a schematic. 24 VDC can be measured at pin 2 of the J7 connector.

Display

The vacuum fluorescent display is the primary user interface.

Electrical Compartment Cooling Fans

The cooling fans (located in the rear of the oven) are actuated by the cooling fan thermostat when the temperature of the electrical compartment

Electrical Compartment Cooling Fan Thermostat

The cooling fan thermostat actuates the rear cooling fans when the electrical compartment temperature reaches 120ºF (49ºC).

Electrical Compartment Thermocouple

The electrical compartment thermocouple is a type “K” thermocouple, which measures the temperature of the electrical compartment. If the temperature of the electrical compartment is above 158ºF (70ºC), an F6: EC TEMP” fault will display. The control board checks the temperature of the electrical compartment once every 60 seconds.

EMI Filter

The EMI filter helps suppress the amount of RF interference emitted by the oven.

Fuses

All four fuses are 12-amp, class CC.

The F1 fuse (via blue wire) or F2 fuse (via brown wire) is designed to blow in case of an over-current situation relative to the following components:

-BMSC motor controller

-Electrical compartment cooling fans

-Filament transformers

-Magnetron cooling fans

-Power supply

-Stirrer motor

The F3 fuse is designed to blow in case of an over- current situation relative to the left microwave system (magnetron, high-voltage transformer, diode, capacitor).

The F4 fuse is designed to blow in case of an over- current situation relative to the right microwave system (magnetron, high-voltage transformer, diode, capacitor).

33

OVEN SYSTEMS

reaches 120ºF (49ºC).

Image 49

Contents Accelerating the World of Cooking TM Page For further information, call 800.90TURBO Page Table of Contents Oven Systems Edit ModeRTD Oven Schematic Appendix Replacing Oven Components TroubleshootingReducing Fire Risk General Safety InformationGrounding Instructions Power Cord ReplacementRF Interference Considerations Specifications and Installation Theory of Operation DimensionsCertifications Oven ConstructionSingle Phase Electrical SpecificationsMulti Phase Lifting and Placing the Oven Unpacking InstructionsOptional Installation Items Installation Near Open Heat SourceVoltage Selection 32.0 813 mm This page intentionally Left blank Daily Maintenance Remove and Clean the Lower Jetplate Remove and Clean the Wire RackRemove and Clean the Lower Air Diverter Clean the Oven InteriorReinstall Components Clean and Dry the Oven DoorClean the Drain Pan Clean the Oven ExteriorOven Controls and Cooking Oven Controls Cooking Mode 1 Oven OffMode 3 Warming Up Mode 2 Temperature SelectMode 4 Soak Mode 5 Ready to Cook or IdleMode 7 Cooking Mode 9 Cook MoreMode 8 Remove Food from Oven Mode 10 Cooling DownViewing the Fault Log Overview of the Info ModeViewing the Service Numbers Viewing Cook Counter/Time LogsInfo Mode Setting the Language Resetting the OvenSetting the Date/Time Turning Oven Options On/OffTest Mode Status Indicators Test Mode Testing Oven PartsTest Mode Fault Log Test Mode Turning On/Off Diagnostic ModeTest Mode Manufacturing Mode Test Mode Self TestMicrowave Power Test Microwave Leakage TestErase/Default Oven Settings Changing Temperature Measurement SettingLoading a Menu Serial Number EditInserting Smart Card/USB Device Updating the SoftwareEdit Mode Single vs. Multiple Temperature Mode Overview of the Edit ModeChanging Food Group/Recipe Name Changing Set TemperaturesChanging Recipe Settings This page intentionally Left blank Oven Systems Convection System Removing/Reinstalling the Oven Door Troubleshooting Convection SystemAdjusting the Oven Door Oven DoorOven Systems Adjusting the Door Switches Interlock SwitchesHinges and Counter-Balance Assembly = Loosen = Tighten = Loosen Slightly Step Measuring RF Leakage for Microwave SafetySurvey Meter Placement TroubleshootingWiring the Filament Transformers Testing a CapacitorMicrowave System Capacitors Testing a Filament or HV Transformer Wiring the High-Voltage Transformers High-Voltage Transformers High-Voltage DiodesTesting a High-Voltage Diode Magnetrons Testing a Magnetron for an Open/Shorted FilamentWave Guides Control System High Limit Thermostat Power SupplyMagnetron Thermostats Relay K1 FilamentRelay K7 Magnetron Cooling Fan Wire HarnessRelay K8 Stirrer Motor Smart Card ReaderCatalytic Converter Filtering SystemDrain Pan Air FilterTroubleshooting Fault Code Descriptions Overview of TroubleshootingF7 RTD Open Below Fault Code TroubleshootingNo YES Is the K6 mechanical Replace the F3 or F4 Are both cooling fans rotating? Yesno Non-Fault Code Troubleshooting Does the keypad beep when YES YES no Did you use a smart card or USB Smart Card Verify the USB device is Is the connection from Troubleshooting Oven Schematic Delta WYE This page intentionally Left blank Appendix Replacing Oven Components To Replace This First Remove This Comprehensive Table of Oven Components2APPENDIX Replacing Oven Components Replacing Items No Cover Removal Required Figures A-1, A-2 Figure A-1 No Cover Removal Required 16 174 5 11 12 13 15 16 Replacing Items Opening Top Cover Required Figure A-3Cover, Top I5-9243 Figure A-4 Removing Top Cover Required 13 14 15Figure A-6 Top Cover Detail Qty Figure A-7 Removing Left Side Cover Required Replacing Oven Components I5-9316 Screw, 10-32 x 3/8 lg, PFLH, 100 Deg, SS 101401 qty Oven Components For service or information

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