Lighting; Room Thermostat; Switching Off; Maintenance - Truma S 3004 Gebrauchsanweisung

Lighting

The lighting (optional) for the control panels is activated by a
proximity switch. To do this, touch the middle of the cover from
above. This switches on the lighting for approx. 20 seconds.
Figure 5
The sensor electronics of the lighting calibrate themselves
whenever the 12V supply voltage is applied. This can take
several seconds. Do not touch the cover during calibration.

Room thermostat

An average room temperature of approx. 22 °C can be achieved
with a thermostat setting of approx. 3 without fan operation.
We recommend operation with the fan and a thermostat set-
ting of approx. 4 for comfortable warm air distribution and to
reduce the amount of condensation on cold surfaces.
The exact thermostat setting must be determined in accord-
ance with the design of the vehicle and the individual heating
requirement.
The thermostat sensor is located at the bottom of the
heater. Please note that cold draughts caused by refrig-
erator ventilation, door cracks etc. or deep pile carpets ad-
versely affect the thermostat. Sources of interference such as
this must be remedied, otherwise there is no guarantee of sat-
isfactory temperature control.

Switching off

Set the control knob of the heater to position "0" (the auto
ignitor is switched off at the same time).
Switch off fan (move rotary switch to "0").
If the appliance is not used for a long period, close the gas
cylinder and the quick-acting valve in the gas supply line.

Maintenance

Possible burn injury hazard if contact is made with the
hot heater. Clean only when the heater is switched off
and has cooled down.
In spite of careful manufacturing, the heater may con-
tain sharp parts. Therefore, please always use protective
gloves during maintenance and cleaning work!
Electrostatic charging can destroy the electronics.
Ensure that potential compensation is present before
touching the electronics.

Cleaning the heater

– Accumulated dust on the heat exchanger, base plate and
fan wheel of the Truma warm air system must be removed
at least once annually. Carefully clean the fan wheel with a
paintbrush or small brush.
– After an extended period of non-use, inspect the heat ex-
changer for dirt and clean it if necessary
16
It is prohibited to use products containing chlorine on
and inside the appliance.

Removing the cover

Possible burn injury hazard if contact is made with the
hot heater. Do not remove the cover unless the heater
is switched off and has cooled down.
The cover is unlocked by pushing the two locking levers (1)
outwards simultaneously. It can be swivelled out and lifted
from the lower bearings.
1
Figure 6

Fitting the cover

Hook cover into the lower bearings (1) and swivel in (2) until
catch audibly engages. Pull cover to make sure that it is se-
curely attached.
1
Figure 7
2