Wolf CGB-75 Assembly And Operating Instructions Manual page 48

Supplementary installation notes
Flat roof: Affix the ceiling outlet approx. Ø 170 mm (8)
deep into the roof cover.
Pitched roof: At (7, 7a), observe the installation instructions
on the cowl regarding roof pitches.
Insert the roof outlet (9) from above through the roof and
secure vertically with (6) to a rafter or brickwork.
Install the roof outlet only in its original condition.
Modifications are not permissible.
6
7
7a
8
If an inspection aperture is required for the balanced flue,
insert a balanced flue with inspection aperture (3) (200 mm
length).
To check the balanced flue, undo and remove the cover of
the inspection piece (3).
Inspection piece (3)
Please note: Lubricate all balanced flue joints prior to installation, e.g. with a soapy solution, or coat lightly with suitable
grease (mat. no. 2651329).
48
Design information
9
7
Install all horizontal balanced
flues with > 3° slope (6 cm/m)
t o w a r d s t h e b o i l e r. A n y
condensate must be returned
to the boiler.
Install the centring triangles
near the end of the pipe.
I f r e q u i r e d , a f l u e p i p e
expansion piece in a duct from
DN 110 to DN 160 can be fitted
at the support bend.
Determine distance A. Length of balanced flue (5) always
approx. 100 mm longer than distance A. Always trim the flue
on the smooth side, never on the coupling side.
Chamfer the flue after trimming.
180
Ø 160
Offset
Bends Offset
87° min. 270 mm
45° min. 106 mm
Distance A
Distance A
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