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Installation of the pressure reducer
Depending on the scope of supply – pressure reducer A or B
has to be installed.
Pressure reducer A
The pressure reducer (40) must be fitted between the drain
valve and water pump in accordance with the direction of
flow (indicated by arrow).
Fasten the pressure reducer to the floor.
40
Fig. 27
Pressure reducer B
The pressure reducer (40) must be fitted between the drain
valve and water pump in accordance with the direction of
flow (indicated by arrow).
40
3 Nm
Fig. 28
Routing of water pipes
Connect cold water supply (41) to drain valve (42). Route the
water pipes without tension in order to ensure that the drain
valve will work properly!
Fig. 29
Slide elbow fitting (45) onto cold water connecting pipe and
elbow fitting with integrated ventilating valve (46) onto hot
water connecting pipe of heater as far as it will go. Pull in
opposite direction in order to make sure the elbow fittings are
securely attached.
Create the pipe connection (43) for cold water supply between
drain valve (42) and the inlet on the hot water system.
Route the hot water supply (44) from the elbow connec tion
with integrated vent valve (46) to the hot water consumers.
10
2 x
3 Nm
46a
47
20 mm
45º
Push the venting hose, external diameter 11 mm (47), onto
the hose grommet of the venting valve (46a), and lay it to the
outside without any kinks. Ensure that the bend radius is not
smaller than 40 mm.
Cut off the aeration hose about 20 mm below the vehicle floor
at a 45° angle to the direction of travel (see figure).
Check all connections for water leaks:
– Repair leaks as needed.
– Repeat check for water leaks and take any necessary steps
to repair the leaks at all water connections.
Installing the room temperature sensor
When selecting the location, bear in mind that the room tem-
perature sensor must not be subjected to any direct radiant
heat. For optimum room temperature regulation, we recom-
mend that the room temperature sensor be fitted above the
entrance door.
Fig. 30
Please ensure that the sensor is always attached to a
vertical wall. There must be a free flow of interior air
around the sensor.
Drill a hole 10 mm in diameter. Guide the connection cable
through the drillhole from behind and plug the cable end into
the sensor by means of an insulated connector plug (there is no
need to be concerned about polarity). Slide in the room tempera-
ture sensor and lay the cable end with the two insulated connec-
tor plugs to the heating electronics unit (extend to a maximum
overall length of 10 m using 2 x 0.5 mm² cable if necessary).
The provided room temperature sensor must always be
connected, otherwise the heater will switch to fault.
Installing the control panel
46
The installation of the control panel is described in the instruc-
tions included with the control panel.
45
10 mm
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