58 Venting for Combustion Air
WARNING
The vent
installation
detector
Detectable
Undetectable
WARNING
●
The failure to properly install the vent pipe
into the boiler collar or using incorrectly
sized vent pipe materials in strict compliance
with installation instructions may cause the
vent pipe to separate from the boiler which
will result in excessive carbon monoxide
emissions and extremely dangerous
conditions which can lead to severe personal
injury and/or death.
●
Be sure to conduct a visual inspection of the
vent pipe before inserting the vent pipe into
the boiler collar. The portion of the vent pipe
inserted into the boiler collar must be free
from damage or defects in order for the vent
installation detector to operate properly. If
the vent pipe is damaged, then replace it with
new vent pipe. The vent installation detector
only detects separation of the vent pipe from
the boiler collar if fully inserted 3.0 in (76
mm). The vent installation detector will not
detect the separation of connected vent pipe
if the joints become detached.
3.0” (76 mm)
Summary of Contents for NFB-175H
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