72 Motorcaravan - 09/21-0 - GLO-MJ22-00EN
10.3 Boiler
10.3.1 Truma Combi boiler
The boiler is integrated in the heater system and operates on gas. The boiler
is switched on by turning the rotary switch (Fig. 64,2) on the operating unit
(Fig. 64).
In winter operation "Heater and boiler" (Fig. 64,3) the water is automatically
heated up when the heater is switched on. If the heater switches off after the
required room temperature has been reached, the boiler will continue to heat
up until the set water temperature has been reached.
In summer operation (Fig. 64,1) only the water in the boiler is heated up to
either 40 °C or 60 °C. The water is heated to 60 °C in approx. 25 minutes. The
yellow indicator lamp (Fig. 64,4) illuminates during the boiler heating-up
period.
The power supply for the appliance cannot be interrupted by means of the 12
V main switch. When there is a fault, the red indicator lamp (Fig. 64,4) on the
operating unit illuminates (see Chapter 14).
Never let gas escape unburned due to danger of explosion.
When filling the fuel tank, on ferries or in the garage, never run the boiler
in gas operation. Danger of explosion!
Never operate the boiler in gas operation in closed rooms (e.g. garages).
Danger of poisoning and suffocation!
The water in the boiler can be heated up to 60 °C. Risk of scalding!
Never use boiler when empty.
If the boiler is not being used, empty it if there is any risk of frost.
Only operate the boiler with the maximum temperature setting if you
require a large quantity of warm water. This protects the boiler against the
build-up of limescale.
Do not use the water from the boiler as drinking water.
Fig. 64 Operating unit for heater/boiler
1 Summer operation water tempera-
ture 40 °C or 60 °C
2 Rotary switch
3 Winter operation "Heater and boiler"
4 Indicator lamp yellow/red:
Lights up yellow = "Boiler heating-up
phase"
Flashes/lights up red = "Fault"
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