Water Connection; Flexible Hose Installation; Rigid Duct Installation Using The John Guest System - Truma BG 10 Einbauanweisung

Screw on the sealing frame (3) together with the cowl
part (1) so that the anti-twist protection protrudes.
7
Figure 5
Seal the air gap between the hole (6) and the condensation
pipe (7) with plastic body sealant – not silicone.
Fit cowl grille (8). Press complete cowl onto vehicle wall and
mount using 6 screws (5).
Screw boiler securely to a suitable surface (plywood board,
laminated wooden battens or metal floor) on the vehicle floor
using at least two brackets (9) with the B 5.5 x 25 screws
supplied.

Water connection

Route all water lines downwards to the drain valve.
Otherwise there is a risk of frost damage that is not
covered by the warranty!
If connected to a central water supply (rural or urban
connection), or if more powerful pumps are being used,
a pressure reducer must be used which will prevent pressures
higher than 2.8 bar from occurring in the system.
Any pressure or immersion pump up to 2.8 bar can be used to
operate the boiler, as can any mixing battery with or without
an electric switch.
If using immersion pumps, a non-return valve (10 – not includ-
ed in scope of delivery) must be installed between the pump
and the first branch (arrow indicates flow direction).
12
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Figure 6
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3
8
6
4
5
10
14
When pressure pumps with a large switching hysteresis are
being used, hot water may flow back via the cold water valve.
We recommend installing a non-return valve (11 – not includ-
ed in scope of delivery) between the outlet to the cold water
tap and the drain valve as a return flow inhibitor.
12
13
Figure 7
In order to ensure that all the water is drained from the
boiler and that all water connections are leak-tight, the
water connections (12 + 13) and the drain valve (14) must
always be used.

Flexible hose installation

Truma can supply the water connections (12 + 13) and the
drain valve (14) with hose connection, diameter 10 mm, as
accessories.
Pressure-resistant (up to 4.5 bar), hot water-resistant (up to
+80 °C), food-safe water hoses with an inner diameter of
10 mm must be used.
Water hoses must be as short as possible and free of
kinks. All hose rubber connections must be secured
with hose clamps (including the cold water connection). The
warming of the water and its resulting expansion may gener-
ate pressures of up to 4.5 bar in the drain valve (also occurs
with immersion pumps).
Rigid duct installation using the John Guest
System
Truma can supply the water connections (12 + 13) and the
drain valve (14) with a diameter of 12 mm as accessories. In
this case it is advisable to always use John Guest pipes, inser-
tion sleeves and retaining rings.
Suitable adapters (not included in scope of delivery) must be
used for connecting rigid pipelines with a different diameter.
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14
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