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Electric underfloor heating
Facts and figures
Output
Power supply
Voltage
The electric underfloor heating is powered by a transformer.
Two different transformers may be used, depending on
the caravan model. One of the transformers has a voltage
selector that must be set to position "1" (42 V).
In order for the underfloor heating to work, 230 V must be
connected to the caravan. The plug for the electric under-
floor heating must be connected to the lower output on the
230 V central electrical unit (see picture on page 30).
Miniature circuit breaker
Voltage selector
Electrical heating of the floor is regulated with the 12 V con-
trol panel. See reference for "Control panel 12 V", page 32.
If the electric underfloor heating does not work, check
that 230 V is connected to the caravan and that the minia-
ture circuit breaker has not been tripped.
Fan in washroom
Some caravans (except caravans with a corner toilet) may be
equipped with a fan in the washroom. The fan is located under
a convector behind the convector guard. Switching on this
fan makes the drying of clothes, towels, etc., more efficient.
The fan is started up with a switch located in the cupboard
under the wash unit.
Fan in the shower cabin
Some caravans with shower cabin can be equipped with
a fan in the shower cabin.
The fan is started when the lighting for the wash room
lights up with the switch that sits on the air gap behind the
bed or inside the wash room at the rear of the sliding door.
Fan in entry wardrobe
Some caravans with entry wardrobe can be equipped
with a fan. The fan is located under a convector under
the shelf. With this fan turned on the drying of clothes,
shoes, etc. more efficient.
48
Heating system
60 W / m
2
230 V, 50 Hz
42 V
Miniature circuit breaker
Power switch fan
The fan is started with a power switch next to the heating
boiler control panel.
Filling with fluid
Use at least a 45% glycol mixture. However, the glycol
mixture may not exceed 50%. Use glycol that does not
corrode aluminium.
If the fluid level in the expansion tank falls due to a reason
other than simple evaporation, check all joints, drainage
plugs and air nipples for leaks.
Add fluid in the expansion tank, which in most models is to be
found in the wardrobe where the caravan's battery is located.
∆
Check the glycol content at least once a year.
In order to access the tank, the cover panel in front must
be removed first. The panel is secured with Velcro. The
expansion tank must be 1/3 filled (in cold system). After
operating the heating system for a while, it may be neces-
sary to add extra fluid, as the system has been bled.
Expansion
tank
Replacing fluid
The fluid in the heating system must be replaced at least every
other year. The system must always be filled (at least 1/3 of the
expansion tank) as there is then less risk of corrosion.
The system is emptied by the drainage plugs under the floor by
the outer door (see picture below), as well as under the boiler.
Remove the hose clip on the hose with a pliers and unplug the plug.
∆
Never allow the heating system to be empty of fluid.
Drainage plug by
outer door/under
boiler
∆
Check the fluid level in the system regularly..
Power switch
fan
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