Viessmann Vitodens 100-W WB1A-24, Руководство по установке

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General Information
11
General Installation Information
(continued)
Recommended venting practice
When installing a venting system the
following recommended venting
practices apply:
H
Keep length and number of 90º
elbows to a minimum.
H Try not to use back-to-back 90º
elbows.
H
Use 45º elbows where possible to
minimize the number of 90º elbows
in case redirection of flue gas is
required.
H
The special vent system shall not be
routed into, through, or within any
other vent such as an existing
masonry or factory-built chimney.
Exception:
A masonry chimney flue may be used
to route the venting system only if
no
other
appliance is vented in the same
flue.
Leak test (for coaxial venting systems only)
Viessmann recommends that the
heating contractor perform a simplified
leak test during boiler start-up. For this
purpose it is sufficient to measure the
CO
2
concentration of the combustion
air in the annular gap of the air intake
pipe. The vent pipe is considered
sufficiently leak-proof if a CO
2
concentration in the combustion air no
higher than 0.2% or an
O
2
concentration no lower than 20.6%
is measured relative to a starting O
2
concentration of 20.9%.
If higher CO
2
values or lower O
2
values
are measured, inspect the venting
system thoroughly.
Continuous short cycling of the boiler
can indicate a leaking venting system.
Note that the vent pipe adaptor comes
with two measurement ports, one for
combustion air intake measurement
and one for flue gas measurement.
Boiler vent pipe adaptor installation (for WB2 6-24C, 6-24 and WB2 8-32 only)
1.
Apply moderate amount of supplied
lubricant to inner and outer gaskets
of boiler vent pipe adaptor
.
2.
Fully insert boiler vent pipe adaptor
into opening provided.
5
2
8
5
2
6
8
v
3
.8
Fig. 1
Installing the boiler vent pipe adaptor