9
Water connection
All pressure and submergible waterpumps can be used for
operating the water heater.
In order to guarantee complete emptying of the
water content and to prevent pressures of greater
than 400 kPa occurring in the boiler, the enclosed pres-
sure reducer (10), the enclosed water connectors (12 + 13)
and the enclosed safety (pressure relief) drain valve (14)
must be used!
When using pressure pumps with high switching hysteresis,
hot water may flow back through the cold water tap. To pre-
vent the backflow, we recommend that a non-return valve
(nrv – not included in the scope of supply) be fitted between
the outlet to the cold water tap and the drain valve.
14
10
nrv
12
16
Fig.13
The supplied water connectors (12 + 13) and safety/drain
valve (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 deliv-
ery) must be used.
As special accessories Truma supplies the water connectors
(12 + 13) and safety/drain valve (14) with a 10 mm / 3/8" di-
ameter hose nipple (please refer to page 12).
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 400 kPa can occur in the Safety/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
manner to the safety/drain valve! Otherwise no guaran-
tee of protection from frost!
3. Insert heater with cowl body (1) through the wall cutout (2),
allow approx. 5 mm to project out of the wall. Mount sealing
frame (3 – the anti-twisting device ensures correct fitting!).
Pre-drill holes for the 6 fastening bolts (4).
Fig.10
4. Remove sealing frame (3) and coat with non hardening
mastic on the side facing the vehicle – do not use silicone!
The sealing frame must be well sealed with respect to
the front sides and the cross bars of the cowl body (1)
as well as towards the outside wall!
5. Fasten sealing frame (3) to the cowl body using 4 self-cut-
ting screws (4).
Screw the sealing frame (3) in contact together with the
cowl body (1) so the anti-twist device projects out!
4
3
Fig.11
6. Seal the gap between the hole (6) and the condensation
tube (7) with non hardening mastic – do not use silicone!
Fig.12
7. Mount the grille (8). Press the entire cowl assembly onto
the vehicle wall and fasten with 6 screws (5).
8. Screw the boiler securely to the floor of the vehicle with
at least two shackle plates (9) with the screws provided,
B 5.5 x 25, on suitable base (plywood panel, laminated wood
strips or metal base).
To Next Page
Loading...
Need help?
General
