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MAINTENANCE
Before you begin:
* Shut off the gas supply to the unit.
Disconnect all electrical supply to the unit.
Always let the appliance cool to room temperature before servicing.
Remove unit fl ue collars.
1) Remove the Left Control Panel Cover.
2) Disconnect 3 wires (EV1, EV2 and ground) leading to the valve as
shown below.
1
3) Disconnect the Pressure Regulator cable.
Pressure
regulator cable
4) Disconnect the Gas Orifi ce supply line from the outlet of the Gas Valve.
46
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VALVE REPLACEMENT
2
3
5) Disconnect the Pilot Supply Line from the Gas Valve
6) Disconnect the Gas Supply Line from the On/Off Safety Shut off Valve.
7) Remove both Screws that secure the Gas Valve Mounting brackets, both
sides.
L540E-2 / HZI540E-2 Direct Vent Gas Insert
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