Instruction manual

173T-Modell - 13/14 - Ausgabe 08/13 - 2354677 - BUE-0029-14EN
Appliances
9
The yellow indicator lamp (Fig. 212,5) is illuminated during the heating up
period. When the set water temperature is reached, the period of heating up
is finished and the yellow indicator lamp fades.
Switching off:
 Set the rotary switch (Fig. 212,2) on the operating unit (Fig. 212) to " ".
 Close the gas isolator tap "Heater/boiler" and the regulator tap on the gas
bottle.
Variant: Boiler with gas
and 230 V electrical
operation
The boiler can be operated with different types of energy:
z Gas operation (Fig. 214,3)
z 230 V electrical operation with the output levels 900 W (Fig. 214,2) or
1800 W (Fig. 214,1)
z Gas and 230 V electrical operation (mixed operation) with the output levels
900 W (Fig. 214,4) or 1800 W (Fig. 214,5)
The combination gas operation and 230 V electrical operation reduces the
heating-up time for the boiler (only possible when the boiler the operating unit
(Fig. 212) is set to winter operation).
When 230 V electrical operation is selected, the yellow indicator lamp
(Fig. 214,6) illuminates.
Filling/emptying the boiler The boiler can be supplied with water from the water tank.
Filling the boiler with water:
 Switch on 12 V power supply on the panel.
 Close the safety/drainage valve. Turn the knob (Fig. 213,1) perpendicular
to the safety/drainage valve and push the push button (Fig. 213,2) in.
 Set all the water taps to "Hot" and open them. The water pump is turned
on. The warm water pipes are filled with water.
Z 230 V electrical operation is only possible when the vehicle is connected to
the 230 V power supply.
Z Select the output level for 230 V electrical operation so that it corresponds
to the fuse protection of the 230 V connection (900 W for 3.9 A fuse,
1800 W for 7.8 A fuse).
Z When the boiler on the operating unit is set to summer operation and the
energy selector switch is set to mixed operation, the heater will only heat
the water in the boiler. For this, the heater only runs in 230 V operation. The
gas burner is not switched on.
Fig. 214 Energy selector switch for
heater/boiler
1 230 V electrical operation (1800 W)
2 230 V electrical operation (900 W)
3 Gas operation
4 Gas and 230 V electrical operation
(900 W)
5 Gas and 230 V electrical operation
(1800 W)
6 Yellow indicator lamp "230 V elec-
trical operation"