Wolf CGB-11 Installation Instructions Manual page 55

Balanced flue system
Versions as condensing boilers up to 24 kW
Flue inside a duct and combustion air directly through the boiler (open flue) + 2 m horizontal
B23
connecting line
B33 Flue DN 80 inside a duct + 2 m horizontal concentric connection line (open flue)
Connection to a moisture-resistant flue gas chimney with horizontal concentric connection
B33
pipe (open flue)
Horizontal roof outlet through a pitched roof, not for CGB-11 with DN 60/100 (balanced flue
C13x
- on-site dormer)
C13x External wall outlet (balanced flue) (for DE < 11 kW)
Vertical concentric roof outlet through a pitched or flat roof,
C33x
vertical concentric balanced flue for installation in a duct (balanced flue)
Connection to a moisture-resistant balanced flue chimney (MRC) maximum pipe length from
C43x
the centre of the boiler bend to the connector 2 m (balanced flue)
C53 Connection to the flue in a duct and ventilation air supply through the external wall
C53x Connection to a flue on an external wall (balanced flue)
Connection to a flue in a duct and ventilation air supply through an external wall (balanced
C83x
flue)
Concentric connection to a moisture-resistant flue gas chimney and combustion air through
C83x
an outside wall (balanced flue)
Vertical flue for duct installation DN 80 rigid/flexible + 2 m horizontal concentric connecting
C93x
line
Available fan draught: 90 Pa
1)
(The maximum length corresponds to the total length from the appliance to the flue terminal)
Note: Systems C33x and C83x are also suitable for ins-
tallation in garages.
Where necessary, adapt the installation examples to the
relevant Building Regulations and requirements of your
country/region. Discuss any questions relating to the
installation, particularly of inspection pieces and ventilati-
on apertures (ventilation generally required above 50 kW
output) prior to installation with your local heating engineer/
flue gas inspector.
The length dimensions refer to concentric balanced flue
and flues, specifically only to original Wolf components.
Balanced flue systems DN60/100 and DN80/125 are
certified as systems together with Wolf gas condensing
boilers.
3061344_201509
Design information
The following balanced flue or flues with CE-0036-
CPD-9169003 certification may be used:
- Flue DN80
- Concentric balanced flue DN60/100 and DN80/125
- Flue DN110
- Concentric balanced flue (on an external wall) DN80/125
- Flue, flexible DN83
The necessary type plates are supplied with the respective
WOLF accessory.
Observe all additional installation instructions included with
accessories.
Maximum length
1) 2)
[m]
DN60/100 DN80/125
- 30
13 30
Calculation to
DIN EN 13384
(MRC manufacturer)
9 10
5 10
9 22
Calculation to
DIN EN 13384
(MRC manufacturer)
- 30
- 22
- 30
Calculation to
DIN EN 13384
(MRC manufacturer)
13 22
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