Planning
22 | WOLF GmbH 3066501_201910
4.6.3
Permitted connection types
Type
COB-2-15/20/29/40
Appliance type
1, 2, 3
B23, B33, C33x, C43x, C53, C53x, C63x, C83x, C93x
Operating mode
Open flue
Yes
Room sealed
Yes
Can be connected to
Moisture-resistant chimney
B23, B33, C83x
Balanced flue chimney
C43x
Air/flue gas routing
C33x, C53x, C93x
Certified air/flue gas routing
C63x
Moisture-resistant flue
B23, C53x, B33
1
An
x
indicates that all components of the flue are surrounded by combustion air and meet higher requirements for gas tightness.
2
For types
B23 and B33
, the combustion air is drawn from the installation room (open flue combustion equipment).
3
For type
C
, the combustion air is drawn through a sealed system from the outside (room sealed combustion equipment).
Table 4.8 Permitted connection types
The following balanced flues or standard flues with CE-0036-CPD-9169003 certification may be used
Table 4.9 Permissible air/flue gas routing lengths [m]
– Flue DN60
– Flexible flue DN83
– Concentric balanced flue DN60/100
– Flue DN110
– Flexible flue DN60
– Flexible flue DN 110
– Flue DN80
– Concentric balanced flue DN110/160
– Concentric balanced flue DN80/125
– Flue DN 160 (for cascade operation)
– Concentric balanced flue (on an external wall)
DN80/125
The necessary type plates and certificates are included with the relevant WOLF accessories.
4.6.4
Air/flue gas routing lengths
The calculation was made taking the pressure conditions into account (geodetic height: 325 m). The
specified lengths refer to concentric balanced flues and standard flues and apply to original WOLF
components only.
Maximum length
Type Design variants
Maximum length [m]
1
COB-2
15
20
29
40
B23 Flue in a shaft and combustion air directly via heat
generator (open flue)
DN 60
20
-
-
-
DN 80
30
30
30
-
DN 110
-
-
-
30
B33 Flue in a shaft with horizontal, concentric connecting
pipe (open flue)
DN 60
18
-
-
-
DN 80
30
30
30
-
DN 110
-
-
30
B33
Connection to a moisture-resistant flue gas chimney
with a horizontal concentric connection pipe (open
flue)
Calculation according to DIN
EN 13384 (balanced flue
chimney manufacturer)
C33x
Vertical concentric roof outlet through pitched or flat
roof, vertical concentric balanced flue system for
installation in a shaft (room sealed)
DN 60/110
9
-
-
-
DN 80/125
24
22
18
-
DN 110/160
-
-
-
14
C43x
Connection to a moisture-resistant balanced flue
chimney, maximum pipe length from centre of bend
on heat generator to connection 3 m (room sealed)
Calculation according to DIN
EN 13384 (balanced flue
chimney manufacturer)
C53
Connection to the flue in a shaft and supply air pipe
through an external wall (room sealed, supply air
pipe 4 m, 1x bend 87°)
DN 80/125
30
30
30
-
DN 110/160
-
-
-
30
C53x Connection to a flue on an external wall (room
sealed)
DN 80/125
30
30
30
-
DN 110/160
-
-
-
30