4-10
4
Caravan Equipment
greater heat requirement. This means that the air output can be used to the full on this side. By adjusting
the air flap (Fig. 1:d) the quantity of air can be increased individually. This means that the air output on
the other side is reduced.
▲ If the air output drops or the operating noise increases, the fan impeller wheel may be
severely soiled. Cleaning (with switched off appliance!).
▲ We recommend removing dust which has collected on the heat exchanger and base plate
of the heater and on the impeller wheel of the Trumavent fan, once every 12 months.
Clean the impeller wheel carefully using a brush or toothbrush.
4.4 TRUMA TRIOMATIC AUTOMATIC PROPANE GAS CHANGE-OVER SYSTEM
Operating instructions
▲ Always ensure that the gas cylinders
are in an upright position and
secured against tipping over.
Ensure both gas bottles are connected. The
regulators mounted on the gas bottles have a
coloured tag on them. Red designates the reserve
cylinder and green designates the operating cylinder.
▲ Do not kink or severely bend the gas
hoses.
First open the valve on the reserve cylinder (red type plate) and then open the valve of the operating
cylinder (green type plate) Both regulators are now vented. The system regulator (marked with a yellow
type plate for 30mbar) supplies the caravan appliances with the correct pressure regardless as to
whether the gas is supplied from the operating cylinder or the reserve cylinder.
The gas cylinder that is supplying the caravan at a given time is indicated by the gauge (8). The needle
being in either the red or green area, which corresponds to the relevant regulator.
4.4.1 Changing cylinders
▲ It is possible to remove, and replace, either of the gas bottles without shutting down the
whole systems as both ‘red and green’ regulators are fitted with non-return valves.
If the pressure gauge (8) is in the red area close the valve at the operating cylinder and unscrew the
operating regulator (6) from the gas bottle.
▲ A residual amount of gas may be present during this operation, no smoking or naked
flames.
All gas appliances can be supplied from the reserve cylinder (red type plate).
Connect the full gas cylinder to the operating cylinder and open the valve. (When doing this ensure that
the gas cylinder suppliers regulator fitting instructions are followed). The full gas cylinder will automatically
take over supplying the system.
It is recommended that periodically the reserve cylinder be swapped over and used as the operating
cylinder.
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