Wolf COB - Page 36

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In the vertical part of the ue, a cleaning and inspection aperture is required
immediately above or below the ue diverter if the distance from the centre of the
cleaning and inspection aperture in the horizontal part of the ue to the vertical axis
of the ue is greater than 30 cm.
The distance can be up to 1 m if the inspection aperture in the horizontal part of the
ue is arranged on the front and if there are no diverters in the ue from this cleaning
and inspection aperture to the vertical part.
In the upper part of the ue arranged inside the building (< 5 m), a cleaning and
inspection aperture is required if cleaning or inspection cannot be carried out from the
roof.
Before commissioning the combustion system, have the safe usability of the ue
system conrmed by the local ue gas inspector [in Germany; check local regulations].
Installingtheue
23. Cascade operation
Flue gas header design / notes
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1 Oil condensing boiler
2 Connection adaptor with test nipple
for air and ue gas (included in COB standard delivery)
16 Rose
23 Support rail
24 87° support bend
25 Spacer
26 PP pipe
27 Cowl
33 PP outlet
34 Electricaluegasdamper
35 Extension(whererequired)
36 Siphon
37 PP header
38 End piece with inspection aperture and condensate
drain
Secondary
ventilation
Example of an open ue cascade design according to type B23
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