Wolf CGB-75 Installation And Operating Instructions Manual page 53

Eccentric balanced flue C53, B23
Install the balanced flue distributor 110/110 mm eccentrically
(26) for a separate balanced flue.
When connecting a balanced flue certified according to Building
Regulations, observe the permit of the relevant body.
Install the horizontal flue with a fall of ap-
prox. 3° (6 cm/m) towards the boiler. Route
the horizontal air supply with a 3° slope
towards the outside – install the air inlet with
a cowl; permissible wind pressure at the air
inlet 90 Pa. The appliance will not operate
with higher wind pressure.
1 Gas condensing boiler
2 Gas condensing boiler connections
DN110/160
19 Support bend DN 110
20 Support rail
21 Flue pipe DN110
500 mm
1000 mm
2000 mm
22 Bend 87° DN 110
23 Spacer
24 Duct cover
27 Balanced flue distributor
110/110 mm
28 Tee 87° with inspection aperture
DN 110
29 Ventilation bezel Ø 110
Ventilation air in open flue operation in accordance with TRGI:
75kW
100kW
180kW
200kW
3062555_201804
28. Technical information
Ventilation air aperture for room sealed operation
according to TRGI 150 cm² or 2 x 75 cm².
200cm²
250cm²
350cm²
450cm²
Downstream of the support bend (19), the flue can be routed
in DN 110 inside the duct.
Secondary ventilation
C53
Maintain the following clearance
between the internal shaft wall and
the flue:
For round ducts: 3 cm
for square ducts: 2 cm
Secondary ventilation
B23
53