Greenheck IG / IGX (464104 IOM) (Pre-2009) - Manual (Page 10)

10
WARNING!
The concentric venting adapter is designed for indoor installations and should never be installed on
the exterior of the building.
Installation - Concentric Venting (General)
NOTE!
Concentric venting allows the exhaust pipe and combustion air pipe to pass through a single hole in
the roof or wall of the building. A concentric venting adapter is required for concentric venting.
NOTE!
If venting vertically through the roof, refer to the vertical concentric venting instructions. If venting
horizontally through the wall, refer to the horizontal concentric venting instructions.
CVA-4
(4 inch Concentric Venting Adapter)
CVA-6
(6 inch Concentric Venting Adapter)
Exhaust Connection
Concentric Side
Combustion Air Connection
Concentric Side
Exhaust Connection
Non-Concentric Side
Combustion Air Connection
Non-Concentric Side
CVA
NOTE!
The exhaust pipe must terminate with the vent terminal. The combustion air pipe must terminate with
the combustion air guard (horizontal venting) or terminal (vertical venting). Both are provided in the
optional venting kit along with the concentric venting adapter (CVA).
NOTE!
Vent piping is supplied by others and not supplied by Greenheck.
Installation