Operating Instructions; Filling The Truma Boiler With Water; Draining The Water Heater; Switching On Gas Operation - Truma B 10 Operating Instructions Manual

Operating instructions

Always observe the operating instructions prior to
starting! The vehicle owner is responsible for the correct
operation of the appliance.
The installer or vehicle owner must apply the yellow sticker
with the warning information, which is enclosed with the ap-
pliance, to a place in the vehicle where it is clearly visible to
all users (e. g. on the wardrobe door)! Ask Truma to send you
stickers, if necessary.
Before using the first time, it is essential to flush the
entire water supply through with clean warm water.
Always mount the cowl cap when the water heater is not be-
ing operated! Drain the water heater if there is a risk of frost!
There shall be no claims under guarantee for damage
caused by frost!
Always remove the cowl cover prior to operating the
water heater!
If connecting to a central water supply (rural or city connection)
or when using more powerful pumps, a pressure reducer
must be used which prevents pressures of greater than
400 kPa occurring in the Boiler.

Filling the Truma Boiler with water

1. Check that the drain valve in the cold water intake is
closed: Lever should be in horizontal position, position (e).
e
Fig. 2
e = Lever position "Closed"
f = Lever position "Drain"
2. Open hot tap in bathroom or kitchen, with pre-selecting
mixing taps or single-lever fittings set to "hot".
3. Switch on power for water pump (main switch or pump
switch).
Leave the tap open to let air escape while the water heater is
filling. The heater is filled when water flows out of the tap.
Residues of frozen water can prevent filling if there is a frost.
The water heater can be defrosted by switching on the heater
for a short period (max. 2 minutes). Frozen pipes can be de-
frosted by heating the room.
If just the cold water system is being used, without
water heater, the heater tank is also filled up with water.
In order to avoid damage through frost, the water contents
must be drained by actuating the drain valve, also when the
heater has not been used. As an alternative, two shut-off
valves, resistant to hot water, can be fitted in front of the cold
and hot water connection.
4
f
e

Draining the water heater

If the mobile home is not used during periods of frost,
it is essential that the Boiler be emptied.
1. Disconnect power for water pump (main switch or pump
switch).
2. Open hot water taps in bathroom and kitchen.
3. Open safety/drain valve: Lever in vertical position, position (f).
4. The water heater is now drained directly to the outside via
the drain valve. Check that the water contents have been
completely drained (10 litres or 14 litres).

Switching on gas operation

a
Fig. 3
a = Red indicator lamp "Failure"
b = Water heater "On" 60 °C or 70 °C
c = Water heater "Off"
Never operate the water heater without water in it!
If the wall cowl is positioned close to an opening window (or
hatch) – in particular directly under it – it must remain closed
when the water heater is in use (see warning plate).
1. Remove cowl cover.
2. Open gas cylinder and open stop cock valve in the gas
supply line.
3. Switch on water heater at the switch on the control panel (b).
When using the vehicle switches
Refer to operating instructions of the vehicle manufacturer or
see switch labels.
4. If there is air in the gas supply line, it may take up to a min-
ute before the gas is available for combustion. If the
appliance switches to "Failure" during this period, switch off
the appliance – wait 10 minutes – and switch on again!

Switching off gas operation

Switch off the water heater to position (c).
Fig.4
If the water heater is not to be used for a longer period,
mount cowl cover (non-observance of this point can lead to
the function of the appliance being impaired through water,
dirt or insects), close stop cock valve in the gas supply line
and close the gas cylinder.
Before setting off on any journey, fit cowl cap with the
boiler switched off. Please ensure that it is secure and
has locked into place (risk of accident). Defective cowl caps
must not be used.
Boiler
b
60°
c
b
70°