Operation Manual

123Caravan - 09-09 - DET-0030-09EN
Appliances
10
Combined operation The water is heated more quickly in the boiler if gas operation and 240 V elec-
trical operation are switched on simultaneously.
Filling/emptying the boiler The boiler can be supplied with water from the water tank.
Depending on the model, the vehicle is fitted with one or several boiler drain
cocks. The drain cocks can have different designs (rocking lever or twist cap).
Filling the boiler with water:  Close all boiler drain cocks. To do this, position the rocking lever
(Fig. 144,2) horizontally or turn the cap (Fig. 144,1) in a clockwise direc-
tion.
 Switch on 12 V power supply on the panel.
 Set all the water taps to "Hot" and open them. The water pump is turned
on. The warm water pipes are filled with water.
 Keep the taps open until the water flowing out of the taps has no bubbles
in it. This is the only way to ensure that the boiler is full of water.
 Close all water taps.
Emptying the boiler:
 Set the rotary switch (Fig. 142,3) on the operating unit (Fig. 142) to " "
(Fig. 142,4) or the flip switch (Fig. 143,1) to " ".
 Turn knob (Fig. 142,1) anticlockwise until it can go no further.
 Open all boiler drain cocks. To do this, position the rocking lever
(Fig. 144,2) vertically or turn the cap (Fig. 144,1) in an anticlockwise direc-
tion.
 Check whether the water has been drained completely from the boiler
(approx. 12.5 litres).
10.4.3 Alde boiler
Switching the boiler on/
off
The boiler is integrated in the hot-water heater. A separate operation is not
possible. For operating the hot-water heater, see section 10.2.5.
Filling/emptying the boiler The boiler can be supplied with water from the water tank.
 Further information can be obtained in the manufacturer's instruction
manual.
Fig. 144 Drain cocks for Truma boiler
 Because of the suction effect, a part of the water supply can be also
drained from the lines and the water tank. The water system is however not
completely emptied.