S e t s o f b a l a n c e d f l u e l i n e s
3.4 Connecting the GasSolarUnit
Connection of the flue gas
and ventilation air lines
General: The installer must agree the required
work with the relevant flue gas inspector
[where appropriate]. Even in regions where
this is not legally required, we recommend the
involvement of the flue gas inspector, who can
be notified with a standard form.
The ROTEX GasSolarUnit/GasCompactUnit
must be connected to the flue gas system on
the same floor as where it is installed.
The balanced flue boiler connection has a
diameter of 125 mm (ventilation air) and
80 mm (flue gas), and is fitted with specially
acid-resistant gaskets. Generally speaking, the
boiler can be connected to any flue certified
for condensing operation.
(system with valid DIBT certificate — see
general information in chap. 3.2)
Note: A flue gas high limit safety
cut-out is not required on site due
to the intentionally low flue gas
temperatures!
Fig. 3.4.1: Flue connection to the back with the
balanced flue connection set H (top view)
[ 16 ]
Flue outlet straight out of the back
For the standard connection, especially out the
back, we recommend the balanced flue
connections set H that is specifically tailored
for the ROTEX GasSolarUnit/GasCompactUnit.
For the components and layout of this set,
see Fig. 3.4.1):
Balanced flue connection set H:
part no. 15 50 79.08
1 PP balanced flue elbow 87°
2 PP balanced flue test
port piece
3 PP balanced flue
inspection pipe
4 Cover plates, white
5 PP balanced flue wall outlet DN 80/125
Fig. 3.4.2: Flue connection out the side with the balanced flue connection set K (top view)
Flue outlet out of the side and back
We recommend the flue connection at the
side, if the ROTEX GasSolarUnit/Gas-
CompactUnit cannot be connected out the
back. The side flue connections can be
achieved with the balanced flue connection
set K. Components and layout for connection
out the side to the back as follows (see
Fig. 3.4.2):
Balanced flue connection set K:
DN 80/125
part no. 15 50 79.09
DN 80/125
1 PP balanced flue elbow 87°
2 PP balanced flue test
DN 80/125
port piece
DN 125
3 PP balanced flue inspection
bend 87°
4 Cover plates, white
5 PP balanced flue wall outlet DN 80/125
6 PP balanced flue pipe
(PPD L50)
DN 80/125
DN 80/125
DN 80/125
DN 125
DN 80/125
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