Henny Penny 342 manual Transformer, Boards Replacement

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Model OFE/OFG/OEA/OGA-341, 342

2-10. TRANSFORMER

The transformer reduces voltage down (to 24V) to accommodate

REPLACEMENT

those components with low voltage.

1.Remove electrical power supplied to the unit.

To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.

2.Remove the control panel

Figure 2-26

3.Remove the two wire connectors to disconnect transformer From panel. Figure 2-26.

4.Using a 3/8” nut-driver, remove the two nuts securing the transformer to the panel and remove transformer. Figure 2-27.

5.Install the new transformer in reverse order.

Figure 2-27

2-11. CONTROL & I/O

1. Remove electrical power supplied to the unit.

BOARDS

 

 

REPLACEMENT

 

I/O Power Supply

Control

 

To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.

2.Remove the control.

3.Using a 5/16” nut-driver or wrench, remove the 4 nuts securing the PC shield and remove shield. Figure 2-28.

4.Disconnect the wire assemblies from the appropriate board.

Figure 2-28

5.Using a 5/16” nut-driver or wrench, remove the 4 nuts securing the appropriate board to the shroud.

6.Install the new board in reverse order.

2-10

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Contents Introduction Maintenance HintsHigh Temperature Limit Control Gas UnitsRemove the two screws securing the high limit to the bracket Remove the high limit from bracketPosition where it could accidentally touch the electrical Capillary line under and away from all electrical powerWires and terminals. The tube must never be in such a Power terminalsPower Switch Power Switch Excess force will damage probe Temperature Probe Replacement Electric Flame SENSOR/ Pilot / Ignitor Assembly GASFlame SENSOR/ Pilot / Ignitor Assembly Gas Remove the control panel and heat shield from control area Boards Replacement ReplacementTransformer To avoid property damage, do not tamper with, or disassemble Filter Switch Replacement Filter Switch GAS Control Valve Remove screws securing the rear cover to the unit Blower Motor Replacement Blower Motor Replacement Heating Elements ElectricWire Nos Voltage Wattage Ohms cold Contactors Checkout Power RemovedHeating 30 31 34 35 36 FigureRe-apply power to unit and turn power switch to on Replacement Primary Contactor Heating Contactors ElectricSpeaker Assembly 106 Connect the two electrical wires High TemperatureLimit Control Electric Terminals. The tube must never be in such a position Line under and away from all electrical power wiresWhere it could accidentally touch the electrical power TerminalsMotor Removal Filter Pump and Motor Removal Transformer ReplacementAutolift Actuator Motor Replacement If applicableAutolift Actuator Motor Replacement Install new actuator in reverse order