1-9
INSTALLATION
VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS
•
use a 45° elbow on the exhaust termination to launch the plume up and off
the sidewall, for protection of wall.
•
Bird screen of 1/4" stainless steel or plastic mesh is useful to guard against
foreign objects.
to promote the projection of exhaust away from the building and from the intake
pipe, reduction of 3" pipe to 2" is permitted for a maximum lineal travel of 3' including
2 x 90° elbows on each side. This allows for smaller wall penetrations, with sufficient
travel allowance to achieve the minimum exterior configuration as shown above.
For side venting of multiple boiler sets, group all intake terminals together with
4" to 8" lateral spacing, and similarly group the exhaust pipes. Place the 2
groups on the same plane of the building (e.g. north facing wall). Place the 2
groups of pipes at least 3' apart (the closest intake and exhaust pipes shall be
36" - or more – apart. use same 24" (minimum) vertical separation as displayed
above. alternately, as long as the boilers are identical models - intake and
exhaust terminals can maintain a minimum of 12” of separation horizontally
from any exhaust or inlet termination of an adjacent boiler. For alternate group
terminations, contact the iBC Factory for written guidance.
Figure 4: Sidewall vent termination - piping configuration
Figure 5: Sidewall vent termination - multiple vent piping configuration
WARNING
It is extremely important to
maintain at least the minimum
separation of exhaust vent
termination from boiler
intake air as illustrated in
Figures 3, 4 and 5. Failure
to do so can result in a
dangerous situation where
exhaust gasses are re-
ingested with combustion
air. Damage to the boiler
can result from a failure to
maintain these separations.
Third party vent termination
kits and concentric wall
penetration kits that do not
maintain these minimum
separations shall NOT be
used. Improper installation
will void the warranty. Do
not use proprietary InnoFlue
or PolyPro PPs sidewall
terminals without specific
written approval from IBC.
Summary of Contents for VFC 15-150
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