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iN401 - iN501 Air
Intake
Inlet
and
Exhaust
Gas
Outlet
Pipe
Connections
22
May
2019
-
Revision
00
7.3.4 Roof Air Intake Inlet and Exhaust Gas Outlet
Pipe Termination
Venting the unit through the roof is also an option. With this
installation method, the terminations must extend at least 12”
over maximum potential snow levels, or as required by local
building codes. In areas of high snow fall, protect the vent
terminations from blockage.
Terminate the air intake inlet pipe with a 90° elbow (angled
down). A suitable roof flashing and vent cap (not supplied)
should be installed.
12” USA or
18” Canada
over maximum
snow level or
as required by
local code
12” Minimum
3’ Minimum
12” USA or
18” Canada
over maximum
snow level or as
required by local
code
Exhaust
Intake Air
Single unit.
Intake Air
Exhaust
See
Note A
Multiple units.
Note A:
The distance between any exhaust gas outlet and
air intake inlet pipe should be between 18 and 36
inches apart. If this minimum specification cannot
be met, the air intake inlet and exhaust gas outlet
pipes should be 72 inches apart or more.
7.4 Single Pipe Venting System (Power Vent)
7.4.1 Single Unit
The following illustrations represent some typical power
venting configurations and are included to assist in designing
the vent system. Possible configurations are not limited to
these designs.
Intake
Air
Intake
Air
Intake
Air
Intake
Air
Intake
Air
Intake
Air
Intake
Air
Exhaust
Exhaust
Exhaust
Exhaust