10
23
23b
23c
Ø 22 mm
Fig. 16
Installation of the elbow water connectors
Push elbow fitting without aeration valve (13) as far as
possible onto the Truma UltraRapid HWS cold water con-
nection tube (lower tube), and push the elbow fitting with
built-in aeration valve (12) as far as possible onto the
Truma UltraRapid HWS 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 (20) onto
the hose nozzle of the aeration valve (21) 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.
45º
20 mm
21
13
12
20
Ø 12 mm
Fig. 17
In industrial bulk packs the water connections are preinstalled
and have to be tightened after the water pipes have been
connected.
Water pipe routing
Connect drain valve (14) via a John Guest T- piece to the
water line.
Connect cold water supply (15) via the pressure reducer (10)
to the drain valve (14).
Make a connection (16) for cold water supply between drain
valve (14) and elbow (13 – lower pipe) on water heater.
Pressure reducer B
The pressure reducer (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. 14a
Installation of the drain valve
Install the drain valve near to the water heater at a place
which is easily accessible (Fig. 15 - 14).
The drain valve must be installed lower than the cold water
connection of the Truma UltraRapid HWS.
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. 15
Mounting of the discharge pipe
The discharge pipe (Fig. 16 - 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 safety 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 (23b).
Summary of Contents for UltraRapid
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