Wolf WKGD 126621, WKGDX 126624, WKGX 126623, WKGC 126622 Timer Cycle Normal Roast Cooking

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FULL SIZE GAS CONVECTION OVENS - ELECTRICAL OPERATION

a.Motor speed relay (R1) is energized through hold relay

(R2) normally closed contacts (N.C.). Relay contacts (R1) change state and the normally open (N.O.) set of contacts close.

a)Power is connected through the function switch (S3) contacts and convection fan motor is energized (fan speed hi).

b)When the convection fan motor reaches operating speed, the centrifugal switch (N.O.) on the motor closes.

c)Power to normally open (N.O.) side of internal relay contacts (terminal 7) on the temperature control board.

3)Power is also connected back through

asecond set of contacts on the power switch (S1) to terminal 8 on the temperature control board.

a.Solid state temperature control energized. If the oven temperature is below set point, the temperature control will energize its internal relay. The normally open (N.O.) contacts close and apply power to the following components:

a)Heat light (clear) comes ON.

b)Power is connected through the centrifugal switch contacts on the convection fan motor, heat relay (R3) is energized, (R3) contacts (N.O.) close and the heating circuit is powered.

c)Ignition control module is energized.

d)No ignition light (red) comes ON, module performs a self diagnostic test for 4 seconds, 2nd valve (main) on the gas valve is energized. Gas starts to flow to the burner, sparking begins, the NO IGNITION light goes out and burner lights. Sparking continues for up to 7 seconds or until a flame is established. If a flame is SENSED, the NO IGNITION light stays out and burner remains lit.

If a flame is not SENSED after 7 seconds of sparking, the NO IGNITION light comes back on, 2nd valve (main) on the gas valve is de-energized and gas flow to the burner stops. Ignition trial cycle repeats after a 15 second purge between cycles for two additional tries before locking out. To reset after a lockout, turn power switch (S1) OFF then ON.

4.Oven reaches set temperature.

A.Temperature control de-energizes internal relay and the normally open (N.O.) contacts OPEN.

1)Heat light goes out.

2)Power removed from heat relay (R3).

a. R3 normally open (N.O.) contacts OPEN.

a)Power removed from 2nd valve (main) on the gas valve and gas flow to the burner stops.

5.The oven will continue to cycle on the temperature control until the doors are opened or power switch (S1) is turned to the OFF or OVEN COOL position.

Timer Cycle (Normal Roast Cooking)

NOTE: The ROAST timer (normal cooking) operates independently of the heating cycle. Additional time can be set or the timer can be turned OFF throughout the cooking cycle.

1.With the power switch turned ON, power is supplied to timer.

A.Set ROAST timer to desired time (normal cooking).

B.Contacts 1 & 3 close, timer motor is energized and timing DOWN begins.

2.Time expires on ROAST timer (normal cooking).

A.Contacts 1 & 3 open, timer motor is de- energized and timing stops.

B.Contacts 1 & 4 close.

1)Buzzer energized and sounds.

NOTE: The buzzer continues to sound until the timer dial is set to the OFF position or additional time is set.

F32700 (February 2006)

 

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Contents WKG Series Full Size GAS Convection Ovens Table of Contents Computer Control Models Only Installation Operation Cleaning Lubrication SpecificationsIntroduction ToolsCovers and Panels Top Front CoverBottom Front Cover Control PanelRemovable Components Procedure Control Panel ComponentsComponent Panel Components Temperature Probe WKGD/WKGDX GAS BurnerGAS Orifice GAS Solenoid ValveIgnition Control Module Spark Igniter Flame SenseBlower and Motor Oven Doors and Bearings Independent Doors Assembly Removal Oven Doors Simultaneous DoorsDisassembly Door Catch Ball Assembly Independent DoorsDoor Window Door Switch Interior Lights High Limit ThermostatLamp Lamp Assembly Cooling FANService Procedures and Adjustments Solid State Temperature Control Calibration WKGD/WKGDXSolid State Temperature Mechanical Thermostat Calibration WKG/WKGXTemperature Probe Test WKGD/WKGDX Temperature Probe Test WKGD/WKGDXGAS Pressure Adjustment Temp F OhmsDoor Switch Adjustment Verification of Spark AT IgnitorBlower Adjustment Door Adjustment Door Catch Ball Adjustment Independent DoorsProcedure IntroductionOperation Setup Mode Computer Control WKGC/WKGCXProbe Test Computer Control Calibration WKGC/WKGCXSolid State Relay Test Door Switch Function Switch S3Component Function Solid State Temperature Control Blower MotorMotor Speed Relay R1 Computer ControlTemperature Probe Mechanical Temperature ControlComponent Location Gas Valve Dual SolenoidWKG/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 Timer Cycle Normal Roast Cooking Roast and Hold CycleFull Size GAS Convection Ovens Electrical Operation Timer Cycle Roast & Hold Cooking State Temperature Control WKGD, Wkgdx With Roast & Hold Option SolidTimer Cycle Normal Roast Cooking Roast and Hold Cycle Timer Cycle Roast & Hold Cooking Oven Cool Cycle Solid State Temperature Control Roast & Hold Standard on Computer Model Roast Cycle Normal CookingFull Size GAS Convection Ovens Electrical Operation Temperature and Time Cycle Cooking Oven Cool Cycle Computer Control ModelSchematics WKG, Wkgx Mechanical KX ControlsWKG, 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 Troubleshooting ALL ModelsError Codes Computer Control Models onlyCondensed Spare Parts List Description
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