Truma

6
The supplied water connectors (Fig. 11.-12 + -13) and
the drain valve (Fig. 11.-14) have a 12 mm rigid piping
connection (e. g. John Guest System). For connecting to rigid
pipes with other diameters appropiate adapters (not included
in scope of delivery) must be used.
– Route water pipes so that they are as short and free of kinks
as possible (hose connections must be secured using hose
clamps – also for cold water! – pressures of up to 450 kPa
can occur in the drain valve – also with submergible
pumps – because of the heat of the water and the resulting
expansion).
– All hot water pipes should be routed in a descending man-
ner to the drain valve! Otherwise there is no guarantee of
protection from frost!
Installation of the pressure reducer
Depending on the scope of supply – pressure reducer A or B
has to be installed.
For characteristics of the pressure reducer – see „Water
pressure reducer“ page 3.
Pressure reducer A
The pressure reducer (Fig. 12-10) 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.
10
2 x
Fig. 12
Pressure reducer B
The pressure reducer (Fig. 13-10) must be fitted between the
drain valve and water pump in accordance with the direction
of flow (indicated by arrow).
10
3 Nm
3 Nm
Fig. 13
Installation of the drain valve
Install the drain valve near to the water heater at a place
which is easily accessible (Fig. 14-14).
The drain valve must be installed lower than the cold water
connection of the Truma UltraRapid.
Drill a hole with 18 mm diameter and pass through the dis-
charge tube. Fasten drain valve with two screws.
The draining is to be directly to the outside at a position pro-
tected against splash water (apply splash guard, if necessary).
Ø 18 mm
14
Fig. 14
Mounting of the discharge pipe
The discharge pipe (Fig. 15-23c) is to be installed
directly to the outside at a position protected against
splash water (apply splash guard, if necessary).
– There must be no tap, valve or other restrictions in
the discharge pipe.
– The discharge pipe must not be connected to other
piping.
– The discharge pipe must fall continously and free
of kinks from the P&T relief valve to the point of
discharge.
– The discharge pipe must not discharge into a safe
tray.
– Drill a hole with 22 mm diameter and pass through the dis-
charge pipe.
– Slide discharge pipe all the way onto the hose nozzle (Fig.
15-23b).
23
23b
23c
Ø 22 mm
Fig. 15
Installation of the elbow water connectors
Push elbow fitting without aeration valve(Fig. 16-13) as far
as possible onto the Truma UltraRapid cold water connection
tube (lower tube), and push the elbow fitting with built-in
aeration valve(Fig. 16-12) as far as possible onto the Truma
UltraRapid hot water connection tube (upper tube). Pull in the
opposite direction to check that the elbow fittings are securely
attached.
Slide venting hose with an outer diameter of11mm (Fig. 16-
20) onto the hose nozzle of the aeration valve (Fig. 16-21) and
route to the outside 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.