Installing The Frostcontrol (Safety/Drain Valve); Water Pipe Connection / Routing; Room Temperature Sensor Installation - Truma Combi D 6 Installation Instructions Manual

Installing the FrostControl (safety/drain valve)

The FrostControl must be installed in the immediate vicinity
of the appliance in the heated room in a location that is easily
accessible to the user. Ensure that the rotary switch (42c) and
the pushbutton (42d) can still be operated.
When selecting a location, please ensure that the
FrostControl (42) is not installed in the vicinity of external
heat sources (e.g. power supplies) or in the immediate prox-
imity of warm air ducts.
Water removal can take place directly to the outside in a
splash-protected location (fit splash guards if necessary).
Drill a hole (18 mm diameter) in the floor of the vehicle. At-
tach the hose (42b) to the drainage socket (42a), insert both
through the vehicle floor and route to the outside. Align the
drainage socket centrally to the hole. Secure the FrostControl
with two B 5.5 x 25 screws (included with delivery) without
tension. Screw in the screws vertically. Seal gap between hose
and hole with plastic body sealant from below. (See figure 26 –
Example of an installation with flexible hoses Ø 10 mm).
42c
42
42d
42d
43
Figure 26

Water pipe connection / routing

In order to ensure that the connected components will work,
the water pipes must be kept as short as possible, and free of
kinks and tension.
Route all water pipes so they slope downwards to the
safety/drain valve. No claims may be made under the
warranty for damage caused by frost.
If a water supply is being installed in the vehicle, it must be
ensured that sufficient room is left between the water pipes
and the heat source (e.g. heater, warm air duct).
A water pipe may only be routed at a distance of 1.5 m from
the heater at the warm air duct. The Truma SC hose clip (part
no.: 40712-01) can be used from this distance. With parallel
routing (e.g. through a wall) a spacer (e.g. insulation) must be
fitted in order to avoid contact.
Ensure that the cold water supply does not come into
contact with cold bridges (e.g. the outer wall) in order to
prevent freezing.
Connect cold water supply (41) to safety/drain valve (42).
The included elbow fittings (45 + 46) must always be
used in order to empty all water and prevent the water
hoses on the unit from leaking in the long term.
Install a water pipe (43) for the cold water supply between the
safety/drain valve (42) and the boiler inlet.
Route the hot water pipe (44) from the elbow fitting with inte-
grated aeration valve (46) to the water consumption points.
20
41
42a
42b
Attach elbow fitting (46 – with aeration valve) to upper con-
nection (hot water outlet) and elbow fitting (45) to lower
connection (cold water supply) of heater as far as it will go.
Pull in opposite direction to ensure that the elbow fittings are
securely attached.
20 mm
Figure 27
Slide venting hose with an outer diameter of 11 mm (47) onto
the hose nozzle of the aeration valve (48) and route to the out-
side free of kinks. Radius of arc must not be less than 40 mm.
Cut off the venting hose about 20 mm below the vehicle floor
at a 45° angle relative to the direction of travel. (See figure 27 –
Example of an installation with flexible hoses Ø 10 mm).

Room temperature sensor installation

When choosing a location, please note that the room temper-
ature sensor must not be subjected to direct heat radiation.
In order to obtain optimum room temperature control, install
room temperature sensor over the entrance door.
Figure 28
Please ensure that the sensor is always installed in a
vertical wall. There must be a free flow of interior air
around the sensor.
Drill a hole with a diameter of 10 mm. Lead the connector
cable through the hole from the rear, and connect the end of
the cable to the sensor using an insulated connection plug
(no need to observe polarity). Slide in the room temperature
sensor and route the end of the cable with the two insulated
connection plug to the heater electronics (lengthen the cable
to a maximum total length of 10 m with 2 x 0.5 mm² cable if
necessary).
The supplied room temperature sensor must always be
connected, otherwise the heater will switch to fault.
48
46
44
47
43
45
45º
10 mm