Permitted Connection Types; Air/Flue Gas Routing Lengths - Wolf COB-2 Operation Instructions Manual

Planning
4.6.3

Permitted connection types

Type
Appliance type
Operating mode
Open flue
Room sealed
Can be connected to
Moisture-resistant chimney
Balanced flue chimney
Air/flue gas routing
Certified air/flue gas routing
Moisture-resistant flue
An x indicates that all components of the flue are surrounded by combustion air and meet higher requirements for gas tightness.
1
For types B23 and B33, the combustion air is drawn from the installation room (open flue combustion equipment).
2
For type C, the combustion air is drawn through a sealed system from the outside (room sealed combustion equipment).
3
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
– Flue DN60
– Concentric balanced flue DN60/100
– Flexible flue DN60
– Flue DN80
– Concentric balanced flue DN80/125
– 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
Flue in a shaft and combustion air directly via heat
B23
generator (open flue)
Flue in a shaft with horizontal, concentric connecting
B33
pipe (open flue)
Connection to a moisture-resistant flue gas chimney
B33 with a horizontal concentric connection pipe (open
flue)
Vertical concentric roof outlet through pitched or flat
C33x roof, vertical concentric balanced flue system for
installation in a shaft (room sealed)
Connection to a moisture-resistant balanced flue
C43x chimney, maximum pipe length from centre of bend
on heat generator to connection 3 m (room sealed)
Connection to the flue in a shaft and supply air pipe
C53 through an external wall (room sealed, supply air
pipe 4 m, 1x bend 87°)
Connection to a flue on an external wall (room
C53x
sealed)
22 | WOLF GmbH
1, 2, 3
COB-2-15/20/29/40
B23, B33, C33x, C43x, C53, C53x, C63x, C83x, C93x
Yes
Yes
B23, B33, C83x
C43x
C33x, C53x, C93x
C63x
B23, C53x, B33
[m]):
– Flexible flue DN83
– Flue DN110
– Flexible flue DN 110
– Concentric balanced flue DN110/160
– Flue DN 160 (for cascade operation)
COB-2
DN 60
DN 80
DN 110
DN 60
DN 80
DN 110
DN 60/110
DN 80/125
DN 110/160
DN 80/125
DN 110/160
DN 80/125
DN 110/160
Maximum length [m]
15 20 29
20 - -
30 30 30
- - -
18 - -
30 30 30
- -
Calculation according to DIN
EN 13384 (balanced flue
chimney manufacturer)
9 - -
24 22 18
- - -
Calculation according to DIN
EN 13384 (balanced flue
chimney manufacturer)
30 30 30
- - -
30 30 30
- - -
3066501_201910
1
40
-
-
30
-
-
30
-
-
14
-
30
-
30