Wolf WKGX 126623, WKGC 126622 Solid State Temperature, Mechanical Thermostat Calibration WKG/WKGX

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FULL SIZE GAS CONVECTION OVENS - SERVICE PROCEDURES AND ADJUSTMENTS

MECHANICAL THERMOSTAT CALIBRATION (WKG/WKGX)

1.Place a thermocouple in the geometric center of the oven cavity.

2.Set the ON-OFF-OVEN COOL switch to ON.

3.Set the thermostat dial to 350°F.

4.Allow the oven temperature to stabilize (normally 3 cycles).

5.Record the temperature when the thermostat cycles OFF and ON for at least three complete cycles.

6.Calculate the differential by subtracting the temperature indicated when heat lamp goes out from temperature indicated when heat lamp comes on.

A.The differential calculated should be less than 30EF.

1)If the differential is less than 30° F, the thermostat is functioning properly.

a.Proceed to step 7.

2)If the differential is more than 30EF, the thermostat is malfunctioning.

a.Install a replacement thermostat and check calibration.

7.Calculate the average temperature by adding the temperature indicated when the heat lamp goes out to the temperature indicated when the heat lamp comes on and dividing this answer by 2.

A.If the average temperature is less than

15EF from the dial setting, the thermostat is properly calibrated.

B.If the average temperature is more than 15EF of the dial setting, the thermostat calibration must be adjusted.

1)Remove the thermostat knob.

2)Hold the thermostat shaft and turn the inner set screw clockwise to decrease temperature or counterclockwise to increase temperature (1/4 turn = 35EF).

8.Replace the knob and repeat step 7 until the average temperature is within tolerance.

NOTE: Allow the oven to cycle at least two times between adjustments before performing the calculation.

9.If the above adjustment can not be obtained, install a replacement thermostat and check calibration.

SOLID STATE TEMPERATURE

CONTROL TEST (WKGD/WKGDX)

WARNING: DISCONNECT THE

ELECTRICAL POWER TO THE

MACHINE AND FOLLOW LOCKOUT /

TAGOUT PROCEDURES.

1.Remove the right side panel as outlined under COVERS AND PANELS in REMOVAL AND REPLACEMENT OF PARTS.

NOTE: If right side panel is not accessible, this component can be serviced by removing the control panel as outlined under COVERS AND PANELS.

2.Place a thermocouple in the geometric center of the oven cavity.

NOTE: Oven temperature must be below 450°.

NOTE: If oven is equipped with the Roast and Hold option, turn it to Normal ROAST (normal cooking) before continuing.

3.Set the temperature control to the maximum setting.

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F32700 (February 2006)

 

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Contents WKG Series Full Size GAS Convection Ovens Table of Contents Computer Control Models Only Tools Installation Operation Cleaning LubricationSpecifications IntroductionControl Panel Covers and PanelsTop Front Cover Bottom Front CoverControl Panel Components Removable Components ProcedureComponent Panel Components GAS Burner Temperature Probe WKGD/WKGDXGAS Solenoid Valve GAS OrificeSpark Igniter Flame Sense Ignition Control ModuleBlower and Motor Oven Doors and Bearings Independent Doors Oven Doors Simultaneous Doors Assembly RemovalDisassembly Door Catch Ball Assembly Independent DoorsDoor Window Door Switch Interior Lights High Limit Thermostat Lamp Cooling FAN Lamp AssemblySolid State Temperature Control Calibration WKGD/WKGDX Service Procedures and AdjustmentsMechanical Thermostat Calibration WKG/WKGX Solid State TemperatureTemperature Probe Test WKGD/WKGDX Temperature Probe Test WKGD/WKGDXTemp F Ohms GAS Pressure AdjustmentVerification of Spark AT Ignitor Door Switch AdjustmentBlower Adjustment Door Catch Ball Adjustment Independent Doors Door AdjustmentIntroduction ProcedureComputer Control WKGC/WKGCX Operation Setup ModeProbe Test Computer Control Calibration WKGC/WKGCXSolid State Relay Test Door Switch Function Switch S3Component Function Computer Control Solid State Temperature ControlBlower Motor Motor Speed Relay R1Gas Valve Dual Solenoid Temperature ProbeMechanical Temperature Control Component LocationWKG/WKGX Plug, Socket and Components Standard Controls WKGD/WKGDX Plug, Socket and Components Standard Controls Full Size GAS Convection Ovens Electrical Operation WKGC/WKGCX Plug, Socket and Components Roast & Hold Standard WKG, Wkgx With Roast & Hold Option Mechanical KX Thermostat Sequence of OperationNormal Roast Cycle Roast and Hold Cycle Timer Cycle Normal Roast CookingFull Size GAS Convection Ovens Electrical Operation Timer Cycle Roast & Hold Cooking WKGD, Wkgdx With Roast & Hold Option Solid State Temperature ControlTimer Cycle Normal Roast Cooking Roast and Hold Cycle Timer Cycle Roast & Hold Cooking Oven Cool Cycle Solid State Temperature Control Roast Cycle Normal Cooking Roast & Hold Standard on Computer ModelFull Size GAS Convection Ovens Electrical Operation Oven Cool Cycle Computer Control Model Temperature and Time Cycle CookingWKG, Wkgx Mechanical KX Controls SchematicsWKG, Wkgx Mechanical KX Controls, Roast & Hold Option WKGD, Wkgdx Solid State Temperature Control Full Size GAS Convection Ovens Electrical Operation WKGC, Wkgcx Computer Control Roast & Hold Standard Wiring Diagrams Full Size GAS Convection Ovens Electrical Operation WKG, Wkgx Mechanical KX Controls, Roast & Hold Option Full Size GAS Convection Ovens Electrical Operation WKGD, Wkgdx Solid State Temperature Control Full Size GAS Convection Ovens Electrical Operation Full Size GAS Convection Ovens Electrical Operation Full Size GAS Convection Ovens Electrical Operation WKGC, Wkgcx Computer Control Roast & Hold Standard Full Size GAS Convection Ovens Electrical Operation ALL Models TroubleshootingComputer Control Models only Error CodesDescription Condensed Spare Parts List
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