Wolf COB - Page 48

48
3062547_201507
1)
 Availablefandraught:COB-15:32-65Pa/COB-20:45-65Pa/COB-29:55-105Pa/COB-40:70-150Pa
(the maximum length corresponds to the total length from the appliance to the ue terminal)
2)
Vertical ue for installation in a duct, exibleandrigidwith horizontal concentric connection line Calculation to DIN EN 13384
(balanced ue manufacturer)
Note:
Systems C 33x and C 83x are also suitable for installation 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 regarding the inspection components and ventilation apertures, prior
to installation with your local ue gas inspector.
Thelengthdimensionsrefertoconcentricbalancedueandues,andonlytooriginalWolfcomponents.
Balanceduerouting
Calculatingthebalanceduelength
The calculated length of the balanced ue system or the ue
is derived from the straight pipe length and the length of the
pipe bends.
Example:
Length of straight balanced ue 1.5 m
Inspection tee 87° = 2 m
2 x 45° bends = 2 x 1 m
L = 1.5 m + 1 x 2 m + 2 x 1 m
L = 5.5 m
31. Design information
Table: Pipe length calculation
Component Calculated length
87° bend 1.5 m
45° bend 1 m
Tee 87° with inspection
aperture
2 m
Straight pipe Subject to length
Versions as condensing boilers Max. length, vertical
1)
COB-15 COB-20 COB-29 COB-40
B23 Flue in a duct and combustion air directly via the boiler (open ue) 30 30 30 30
B33 Flue in a duct with horizontal, concentric connection line (open ue) 30 30 30 30
B33 Connection to a moisture-resistant ue gas chimney with
a horizontal concentric connection line (open ue)
Calculation to DIN EN 13384
(balanced ue manufacturer)
C33x Vertical concentric roof outlet through a pitched or at roof, vertical concentric
balanced ue for installation in a duct, (balanced ue)
20 20 16 21
C43x Connection to a moisture-resistant balanced ue chimney,
maximum pipe length from centre of boiler bend to connection 2 m
(balanced ue)
Calculation to DIN EN 13384
(balanced ue manufacturer)
C53 Connection to the ue in a duct and
ventilation air line through an external wall (balanced ue)
30 30 30 30
C53x Connection to a ue on an external wall (balanced ue) 30 30 30 30
C83x Connection to the ue in a duct and
ventilation air through an external wall (balanced ue)
30 30 30 14
C83x Concentric connection to a moisture-resistant ue gas chimney and
combustion air through an external wall (balanced ue)
Calculation to DIN EN 13384
(balanced ue manufacturer)
C93x Vertical ue for installation in a duct,
exibleandrigidwith horizontal concentric connection line
rigid
exible
27
19
27
19
22
16
20
2)