Operation Manual

15
1M
otorcaravan - 09-08 - DET-0033-07EN
Appliances
1
0
Alde auxiliary circulating
pump
The auxiliary circulating pump (Fig. 163,1) can be used to heat the vehicle
engine when parked.
The auxiliary circulating pump is connected to the vehicle engine's cooling cir-
cuit and thus functions as an engine heater.
The auxiliary circulating pump switch (Fig. 164,2) is located next to the hot-
water heater operating unit. The yellow indicator lamp (Fig. 164,1) illuminates
when the pump is operated.
Setting the rotational
speed of the circulating
pump
The rotational speed of the circulating pump can be set with the sliding switch
(Fig. 165,2). 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. 165,1) towards the right. The output is reduced.
Push sliding trap towards the left. The output is increased.
The auxiliary circulating pump works only if a heat exchanger has been
installed and the hot-water heater is running.
Fig. 163 Auxiliary circulating pump Fig. 164 Operating switch for auxiliary
circulating pump
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. 165 Rotational speed reduction
switch