Turbo Chef Technologies i5 Relay K7 Magnetron Cooling Fan, Relay K8 Stirrer Motor, Voltage Sensor

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Relay - K7 Magnetron Cooling Fan

USB Port

The K7 relay is a 240 VAC, 30 amp, double-pole, double-throw, 24 VDC relay coil. It switches power to the magnetron cooling fans when the magnetron filaments are actuated. Power is switched off after 4 minutes, 15 seconds.

NOTE: The 4:15 timer starts over each time the magnetron filaments are actuated.

Relay - K8 Stirrer Motor

The K8 relay is a 240 VAC, 30 amp, double-pole, double-throw, 24 VDC relay coil. It switches power to the stirrer motor.

RTD

The RTD measures the temperature of the heater element. If the display reads “999°F/C”, the RTD is open, resulting in an F7 fault. See page 43 for troubleshooting.

Smart Card Reader

The smart card reader allows the oven operator to load a menu/software updates from a smart card. A menu that already exists in the oven can also be saved to a smart card. For instructions, see page 17.

Solid State Relay - K4/K5 Heater

The solid state relay is a 240 VAC, dual 40-amp relay. K4 (right) switches power to heater 1. K5 (left) switches power to heater 2.

The USB port allows the oven operator to load a menu/software updates from a USB drive. A menu that already exists in the oven can also be saved to a USB drive. For instructions, see page 17.

Voltage Sensor

For North America oven models, the oven will detect 208 or 240 incoming voltage.

The initial voltage selection is typically completed before the oven is used by the customer. However, if incoming voltage for the store is different than the preset voltage, the operator will be required to select either 208 or 240 after pressing the On/Off key to turn on the oven. The correct voltage will be enlarged on the screen, identifying which option to select.

Wire Harness

The wire harness distributes power to the oven’s electrical components. See page 51 for a schematic.

Troubleshooting

Potentially, any fault may occur in relation to the control system. See section “Fault Code Troubleshooting,” pages 39-44.

Potentially, any one of the issues diagnosed in the section “Non-Fault Code Troubleshooting” may occur in relation to the control system. See section “Non-Fault Code Troubleshooting,” pages 45-49.

Speaker

The speaker provides audible feedback to the oven operator whenever a key is pressed or a task (such as a cook cycle) is completed, etc.

OVEN SYSTEMS

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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 InformationPower Cord Replacement Grounding InstructionsRF Interference Considerations Specifications and Installation Oven Construction DimensionsTheory of Operation CertificationsElectrical Specifications Single PhaseMulti Phase Lifting and Placing the Oven Unpacking InstructionsInstallation Near Open Heat Source Optional Installation ItemsVoltage Selection 32.0 813 mm This page intentionally Left blank Daily Maintenance Clean the Oven Interior Remove and Clean the Wire RackRemove and Clean the Lower Jetplate Remove and Clean the Lower Air DiverterClean the Oven Exterior Clean and Dry the Oven DoorReinstall Components Clean the Drain PanOven Controls and Cooking Oven Controls Cooking Mode 1 Oven OffMode 5 Ready to Cook or Idle Mode 2 Temperature SelectMode 3 Warming Up Mode 4 SoakMode 10 Cooling Down Mode 9 Cook MoreMode 7 Cooking Mode 8 Remove Food from OvenViewing Cook Counter/Time Logs Overview of the Info ModeViewing the Fault Log Viewing the Service NumbersInfo Mode Turning Oven Options On/Off Resetting the OvenSetting the Language Setting the Date/TimeTest Mode Turning On/Off Diagnostic Mode Test Mode Testing Oven PartsTest Mode Status Indicators Test Mode Fault LogMicrowave Leakage Test Test Mode Self TestTest Mode Manufacturing Mode Microwave Power TestSerial Number Edit Changing Temperature Measurement SettingErase/Default Oven Settings Loading a MenuInserting 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 Oven Door Troubleshooting Convection SystemRemoving/Reinstalling the Oven Door Adjusting the Oven DoorOven Systems Interlock Switches Adjusting the Door SwitchesHinges and Counter-Balance Assembly = Loosen = Tighten = Loosen Slightly Step Measuring RF Leakage for Microwave SafetySurvey Meter Placement TroubleshootingCapacitors Testing a CapacitorWiring the Filament Transformers Microwave SystemHigh-Voltage Diodes Wiring the High-Voltage TransformersTesting a Filament or HV Transformer High-Voltage TransformersTesting a High-Voltage Diode Testing a Magnetron for an Open/Shorted Filament MagnetronsWave Guides Control System Relay K1 Filament Power SupplyHigh Limit Thermostat Magnetron ThermostatsSmart Card Reader Wire HarnessRelay K7 Magnetron Cooling Fan Relay K8 Stirrer MotorAir Filter Filtering SystemCatalytic Converter Drain PanTroubleshooting 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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