Operation Manual

115Caravan - 09-09 - DET-0030-09EN
Appliances
10
When the heater is turned on, it starts with the last set operating mode.
Switching on the heater:
 Press " " button. The Start screen appears in the display. The heater
starts automatically.
Switching the heater off:
 Press " " button. The heater is turned off.
Setting the rotational
speed of the circulating
pump
The rotational speed of the circulating pump can be set with the sliding switch
(Fig. 135,2). At a lower rotary speed, the operating sounds of the pump are
quieter.
The sliding regulator is located in the hot-water heater area.
Setting the output:
 Push sliding trap (Fig. 135,1) towards the right. The output is reduced.
 Push sliding trap towards the left. The output is increased.
240 V circulating pump Depending on the equipment, the hot-water heater has an additional 240 V cir-
culating pump.
If the vehicle is connected to the 240 V power supply, then it is possible to
switch to the higher output of the 240 V circulating pump.
The switch for switching between the 12 V circulating pump and the 240 V cir-
culating pump is located on the hot-water heater operating unit.
 If gas and 240 V electrical operation is selected and if the vehicle is con-
nected to the 240 V power supply, then the hot-water heater at first only
operates in 240 V electric operation. Only if the heat output is insufficient
does the gas operation also automatically switch on.
 The gas operation is only possible when the regulator tap on the gas bottle
and the gas isolator tap are opened.
 240 V electrical operation is only possible when the vehicle is connected to
the 240 V power supply.
 The hot-water heater is equipped with a very powerful pump. Only operate
the pump for approx. 5 minutes on full output when the system is emptied
or the pipes are bled. Otherwise, this will increase wear; loud operating
noises are the result.
Fig. 135 Rotational speed reduction
switch