Garland MCO-GS-10E, MCO-GD-10M, MCO-GS-10M, MCO-GD-10E Thermostat Operation, Calibration Notes

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five times doubling the thickness with each fold. After the fifth fold, place the thermocouple tip in the center of the aluminum piece and fold once more. Finally, fold in the sides so that the foil clings to the thermocouple tip.

A mercury thermometer can be weighted in much the same way by wrapping several layers of aluminum foil around the bulb end thus creating the necessary mass. This procedure is a must if you open an oven door to check temperature.

THERMOSTAT OPERATION

It is normal for a hydraulic thermostat cycling with a temperature swing of 45° to 50°. When checking calibration first; allow the thermostat to cycle a minimum of four (4) times, second; place your temperature sensor in the geometric center of the empty oven. Once the oven has been allowed to preheat record the temperature at which the burners cycle "ON and OFF". Average the two readings, that average should be +-20° of the set point temperatu re.

Example: Thermostat set point at 300°, first cycl e Off at 325°. Cycle back ON at 291°. The average of 325° and 291° is 308°. This thermostat is with the +-20° to lerance. If the thermostat is cycling beyond the 20° tolerance and the appliance is under warranty recalibrate the thermostat or if not under warranty consult owner for proper action. If the thermostat is out of calibration more than fifty 50°, it will not likely hold an attempt of recalibration, we suggest that the thermostat be replaced.

"B" Dial Shaft

"A" Calibration Screw Head

1/4" Turn

Increase

Decrease

- CALIBRATION NOTES -

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Contents Garland Direct ON-SITE Service 1-800-451-1165 General InformationSpecification & Dimensions Table of ContentsOverview of Operational Sequences Common Wire Diagrams Component Access of Functional Components AMT Orifice NAT PRO GAS Convection Oven GAS Specifications Main Pilot Total Dimensions & Specifications Pilot Orifice PRES. W/CCalibration of Thermostat Manual Controls MInstrumentation Weighting Calibration Notes Thermostat OperationElectronic Controls E Temp Electronic Control Failure CodesRobertshaw COM6000 Controller User Preference Offset for the Electronic Controllers Operation of the Temperature FunctionOperation of the Timer Function Operation of the Pulse FunctionChange the Hertz Timer Resolution ChangingTo SET Hold Temperature To SET Oven Into Pulse ModeChain Programming Safety Lockout TimeSecond Stage Main Burner Operation END Start StageYES Spark Across IGNITOR/SENSOR GAP YES Spark Stops When Pilot is LIT?Troubleshooting Ends S86 Checkout StartExamples of Unsatisfactory Pilot Flames Check GroundingCheck Spark Ignition Circuit Control Module Flame Sensor CircuitAppearance Cause Lower Front Component LocationsTop Front Center Right FrontFile Name To Remove Doors from the OvenInstalling and Adjusting Door Chain To Reinstall Doors onto Convection OvenDisassembly of the Left Door Disassembly of the Right Door w/o window Page To Replace Convection Oven Motor Assembly Drawing Below To Replace or Adjust Door Latch MechanismConvection Oven Motor Assembly Page Common Wire Diagrams Page
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