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Operating instructions
Switching off
Move rotary switch on the
control panel to „p" to switch
off.
The fan can continue to run
after switching off in order to
utilise the residual heat.
In order to prevent
unintentional over-
loading of the power sup-
ply when resuming opera-
tion, it is advisable to set
the unit to gas operation
at the power selector
switch after switching off.
Always drain water con-
tents if there is a risk of
frost!
If the appliance is not to be
used for a prolonged period,
close the quick-acting valve
in the gas supply line and
turn off the gas cylinder.
Gas operation fault
If a fault occurs during gas
operation the red indicator
lamp (r) on the control panel
illuminates.
Possible causes can be found
in the troubleshooting list.
Unlocking takes place by
switching off and then
switching on again.
Opening the window switch
and closing it again is the
equivalent to switching off/on
at the control panel (e.g.
performing a fault reset)!
If a fault shut-off occurs
during mixed operation
(e.g. because of empty gas
cylinder) the heater continues
to run using electricity.
Electrical operation
fault
If a fault occurs during elec-
trical operation the yellow in-
dicator lamp (h) on the power
selector switch goes off.
Possible causes can be found
in the troubleshooting list.
If the 230 V power sup-
ply is interrupted for
short periods during opera-
tion the heating will resume
as normal.
Electrical
safety/drain valve
a = Control knob „closed"
b = Control knob „drain"
The safety/drain valve is
held closed by a elec-
trical coil. To save battery
power, we recommend to
open the valve if the vehicle
is not in use for a prolonged
period!
If the temperature at the
safety/drain valve is less than
4°C, the water contents may
discharge on its own ac-
cord if the appliance is not
in operation (also if there is a
failure)! To avoid water loss,
switch the device on (Sum-
mer or Winter mode) and
close the safety/drain valve at
the control knob by raising it
up (position a).
Without heater operation, the
safety/drain valve can only be
closed again at temperatures
above 8°C!
The draining socket of the
electrical safety/drain valve
must always be kept clear
(free from slush, ice, leaves
etc.)! There shall be no
guarantee claims for
damage caused by frost!
Filling the
water heater
1. Close electrical safety/drain
valve at the control knob by
lifting up (position a).
At temperatures of around
8°C and less, switch on the
heater or water heater first,
to make sure the valve does
not open again!
2. Switch on power for water
pump (main switch or pump
switch).
3. Open hot water taps in
kitchen and bathroom, (set
preselecting mixing taps or
single-lever fittings to „hot").
Leave taps open until the
water heater has forced out
air and filled up with water
and water is flowing out of
the taps.
If just the cold water
system is being oper-
ated, without using the water
heater, the heater tank also
fills up with water. In order
to avoid damage by frost,
the water contents must be
drained by operating the
safety/drain valve, also when
the water heater has not
been used. As an alternative,
two shutoff valves, resistant
to hot water, can be fitted in
front of the cold and hot
water connection.
When connecting to
a central water supply
(rural or city mains), a pres-
sure reduction valve must
always be installed to prevent
pressures above 2.8 bar
from developing in the water
heater.
Draining the
water heater
1. Interrupt power for water
pump (main switch or pump
switch).
2. Open hot water taps in
kitchen and bathroom.
3. Open electrical safety/drain
valve at control knob by
pressing in (position b).
The water heater content is
now emptied to the outside
through the safety/drain
valve. Place a bucket beneath
the outlet to check whether
the water content has
completely drained away
(12 litres!). There shall be
no guarantee claims for
damage caused by frost!
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