Installing The Frostcontrol (Safety/Drain Valve); Installing The Safety/Drain Valve; Water Line Connection / Routing - Truma Combi E CP plus ready Einbauanweisung

Installing the FrostControl (safety/drain valve)

The FrostControl must be installed in the immediate vicinity of
the unit in the heated room in a location that is easily acces-
sible to the user. Make sure that rotary switch (30) and push
button (31) can still be operated.
When selecting a location, please ensure that the FrostControl
(24) is not installed in the vicinity of external heat sources (e.g.
power supplies) or in the immediate proximity 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. Attach
drain hose (24a) to drainage socket, insert both through
the floor and route to the outside. Seal gap between drain
hose and hole with plastic body sealant from below. Fasten
FrostControl with two screws B 5.5 x 25 (included with deliv-
ery). (See fig. 16 – Example of installation with flexible hoses
Ø 10 mm).
24
31
31
25
Fig. 16

Installing the safety/drain valve

Fit safety/drain valve (24) in easily accessible location in
the vicinity of the device. Ensure that the lever can still be
operated.
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.
Attach hose (24a) to drainage socket, insert both through the
floor and route to the outside. Secure the safety/drain valve
in place with 2 screws. (See fig. 17 – Example of installation
with fixed duct routing Ø 12 mm).
25
24a
Fig. 17
16
30
23
24a
24
23
Ø 18 mm

Water line connection / routing

In order to ensure that the connected components will work,
the water lines must be kept as short as possible, and free of
kinks and tension.
Route all water lines so they drop down to the safety/
drain valve. There shall be no claims under guaran-
tee 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 lines
and the heat source (e.g. heater, warm air duct).
A water line 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 for other distances. 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 (23) to safety/drain valve (24).
The included elbow fittings (27 + 28) must always be
used in order to empty all water and prevent the water
hoses on the unit from leaking in the long term!
Manufacture a water line (25) for the cold water supply
between the safety/drain valve (24) and the boiler inlet.
Route hot water supply line (26) from elbow fitting with inte-
grated aeration valve (28) to hot water consumption points.
Attach elbow fitting (28 – with aeration valve) to upper con-
nection (hot water outlet) and elbow fitting (27) 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.
Slide venting hose with an outer diameter of 11 mm (29) onto
the hose nozzle of the aeration valve (32) 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 to the direction of travel. (See fig. 18 – Example
of installation with flexible hoses Ø 10 mm).
Fig. 18
32
28
26
29
27
20 mm 45º
25