Installation Of The Air/Flue Gas Routing - Wolf COB Technical Manual And Installation Instructions

Fig.: Example of a C93x balanced flue system
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18 Installation of the air/flue gas
routing
C93x
Use only original Wolf components for flues and concentric
balanced flue systems.
Observe the technical information regarding ventilation air
supply / flue systems prior to installing the flue or making
the flue connection (see the Technical Information chapter)!
As regulations in the individual Federal States [Germany] differ,
we recommend consulting the relevant authorities and local flue
gas inspector prior to installation.
For COB-15/-20/-29, the supplied flue gas test
Note
nipples must be fitted to the air/flue outlets.
Alternatively, the flue gas test nipples may
also be directly fitted horizontally after the
87° bend fitted to the boiler. When doing
this, ensure that the balanced flue is routed
o v e r t h e a p p l i a n c e i n s u c h a w a y t h a t
the displacement device can be removed
(minimum clearance via COB-15/-20/-29 is 30
cm; for COB-40 it is 40 cm).
The local flue gas inspector must have clear
Note
access to the flue gas test nipples.
Flue connections are created using female connections and
gaskets. Always arrange female connections against the
direction of the condensate flow.
The balanced flue should be installed with a
Note
slope of at least 3° (6 cm/m) to the oil condensing
boiler. Fit spacer clips to secure the equipment in
position.
In the worst case scenario, a lesser slope of the
air/flue gas routing system may lead to corrosion
or operating faults.
Always bevel or deburr trimmed flues to ensure
Note
gas-tight installation of pipe joints. Ensure
that gaskets are fitted correctly. Remove all
contamination prior to installation - never fit
damaged parts.
Between the flue terminal and the roof surface, there must be a
clearance of at least 0.4 m.
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