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This switch shuts o the power to the safety gas shut-o
valve and with this the gas supply to the Combi furnace.
To make sure that the gas supply to the furnace is o,
turn the switch to the OFF position.
Switch positions of the switch for gas shut-o valve:
O = gas shut-o valve is closed
On = gas shut-o valve is open
Your recreation vehicle has an exterior gas shut o valve. In the event you smell gas, all
people and pets should exit the vehicle immediately. Turn o the exterior gas valve until the
source of the smell has been determined, and any problems have been resolved.
The pressure relief/drain valve is a safety component and must not be removed for
any reason other than replacement.
The pressure relief/drain valve is not serviceable; if defective, it must be replaced.
It must be replaced by a certied service technician.
It must only be replaced by the Truma pressure relief/drain valve rated for 65.25
psi (4.5 bar) which is CSA certied and registered. Tampering with the pressure
relief/drain valve will void the warranty.
Move the lever so that it is in the “drain-
ing” position. Water will drain from the
hot water container via the drainage
socket.
a,b = lever in “valve closed during
furnace operation” position
c = lever in “draining” position
Move the lever so that it is in the “closed” position.
Refer to the manufacturer’s manual for additional operating and safety information on the
pressure relief/drain valve.
1. Close the pressure relief/drain valve, if open
2. Close open bypass lines, if present
3. Turn on the fresh water supply or switch on the water pump