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10.3.1
10.3.2
10.3.3
Switching on:
Reisemobil - 06/02-2 - GLO-0005-00EN
The voltage supply for the heater/boiler and the safety/drainage valve cannot
be interrupted by the 12 V main switch. When there is a fault, the red indicator
lamp on the operating unit for Trumatic C heater/boiler illuminates (see
chapter 14).
Safety/drainage valve
The boiler is equipped with a safety/drainage valve (Fig. 58). The safety/
drainage valve prevents water in the boiler from freezing, when there is frost
and the heater is not switched on.
When the safety/drainage valve is closed a small electrical power flows
which puts an extra load on the living area battery. Therefore, a daily check
of the battery voltage panel is recommended. If the battery voltage drops
to below 10.8 V the function of the safety/drainage valve can no longer be
guaranteed.
When the vehicle is not used for a long period of time, open the safety/
drainage valve and empty the boiler.
At temperatures below 8 °C the safety/drainage valve opens automatically.
Therefore, you must switch on the living area heater and wait until the living
area temperature exceeds 8 °C before you fill the boiler.
The water pump and the water fittings are not protected against freezing by
the safety/drainage valve.
The drainage neck of the safety/drainage valve has to be free of dirt (e.g.
leaves, ice) at all times.
Further information on the living area battery can be obtained from
chapter 9.
Fig. 58
Safety/drainage valve of the
boiler
Winter operation
In the "heater and boiler" switch setting in winter operation, the boiler is
already switched on.
Summer operation
In summer operation the water can be heated up to 40 °C or 60 °C.
Open the regulator tap on the gas bottle and the gas isolator tap "Heater/
boiler".
Set the rotary switch (Fig. 57,2) on the operating unit (Fig. 57) to "Summer
operation" (Fig. 57,1).
10
Appliances
67
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