3
Gas valve replacement
Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!
5
3 Gas valve replacement
To replace the gas valve the following instructions must
be adhered to:
Shut down the boiler
B Turn off the gas supply underneath the boiler.
B Switch off the heating system using the main switch
(Æ fig. 1).
B Disconnect the electrical power to the boiler.
B Set the thermostat or other operating control to lowest
setting.
Fig. 1 Mains switch
B Open the boiler door by turning the vent key through
¼ rotation (Æ fig. 2).
Fig. 2 Opening the boiler door
Changing the gas valve assembly
B Loosen the screw connection on the gas valve
(Æ fig. 3, [1]) and pull the plugs (Æ fig. 3, [2]) from the
gas valve.
Fig. 3 Undoing the connections to the gas valve
B Pull both plugs from the fan unit (Æ fig. 4, [1]).
Fig. 4 Removing the connectors from the fan
B Pull the air suction tube from the fan (Æ fig. 5).
Fig. 5 Pulling the air suction tube from the fan
DANGER:
flammable gas explodes.
Only carry out work on gas conduits and
fittings if you are licensed for such work.
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