Connecting The Exhaust Double Duct To The Appliance; Installing The Wall Cowl; Water Connection - Truma BGF 10 Einbauanweisung

Connecting the exhaust double duct to the
appliance
– Push the clamp (7) over the ducts.
– Compress the exhaust duct (1) at its beginning so that the
coils are lying against each other.
– Slide the clamp (4) over the exhaust duct (1).
– Slide the exhaust duct (1) over the O-ring (2a) on the con-
nection (2) as far as the collar (3).
– Hook in the clamp (4) and screw it securely into place. Slide
the combustion air intake duct (5) onto the connection (6)
and secure with the clamp (7).
Figure 4
A new O-ring must be fitted whenever the exhaust duct
has been removed!

Installing the wall cowl

Fit wall cowl to a surface that is as flat as possible so that air
can flow around at all sides.
– Drill opening (8) with a diameter of 70 mm (duct hole must
be lined with wood in cavities).
– Seal with provided rubber seal (10). Use flexible body seal-
ant on textured surfaces – do not use silicon.
– In the case of thicker walls, first connect the exhaust double
duct to the cowl from the outside.
– Slide the rubber seal (10 – smooth side towards cowl,
sealing lips towards wall) and clamp (4) onto inner part
of cowl (11).
– Before pushing the exhaust double duct through the hole,
slide clamp (7) over duct.
7
8
Ø
70 mm
Figure 5
The ducts must be cut to length so that they protrude from
the hole for the cowl after installation. The exhaust duct (1)
must be 10 % longer than the combustion air intake duct (5).
This avoids exhaust duct expansion and tensile load.
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5
1
10
2 11
12
13
4
9
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– Compress the beginning of the exhaust duct (1) (approx.
2 cm thereof) so that the coils are lying against each other.
– Push the exhaust duct (1) over the O-ring (2a) and onto the
connection (2) as far as the collar (3) (the wall cowl angle
faces upwards).
– Position the clamp (4) so that the flanged rim of the clamp
is gripping the collar.
– Screw the clamp (4) securely into place.
1 4
Figure 6
– Secure the cowl inner part (11) with 3 screws (12) (pay at-
tention to the installation position – the Truma logo must be
at the bottom).
– Fit outer part of cowl (13) and screw it on with 2 screws (14).
– Slide combustion air intake duct (5) onto serrated connec-
tion (9) and secure with clamp (7).
A new O-ring (2a) must be fitted after every removal.

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).
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13
Figure 7
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.
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2a 3
10
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