Goodman GMV series - Page 49

PRODUCT DESIGN
49
Vertical pipe terminations should be as shown in the follow-
ing figure. Refer to Section IX, Vent/Flue Pipe and Com-
bustion Pipe - Termination Locations for details concerning
location restrictions. The penetrations through the roof must
be sealed tight with proper flashing such as is used with a
plastic plumbing vent.
TEE
12" MINIMUM
12" MINIMUM
TO ROOF OR
HIGHEST
ANTICIPATED
SNOW LEVEL
VENT/FLUE
90º
MEDIUM RADIUS
ELBOWS
COMBUSTION
AIR INTAKE
24" MAXIMUM
3" MINIMUM
SCREEN
90% Furnace Vertical Terminations (Dual Pipe)
Horizontal terminations should be as shown in the following
figure. Refer to Vent/Flue Pipe and Combustion Pipe - Ter-
mination Location section in this manual or the installation
instructions for location restrictions. A 2 3/8" diameter wall
penetration is required for 2" diameter pipe while a 3 1/2"
diameter hole is required for 3" diameter pipe. To secure the
pipe passing through the wall and prohibit damage to piping
connections, a coupling should be installed on either side of
the wall and solvent cemented to a pipe connecting the two
couplings. The pipe length should be the wall thickness
plus the depth of the socket fittings to be installed on the
inside and outside of the wall. The wall penetration should
be sealed with silicone caulking material.
12" MIN
3" MIN
24" MAX
3" MIN
24" MAX
90% Standard Horizontal Terminations (Dual Pipe)
24" MAX
3" MIN
24" MAX
AIR
INTAKE
90°
MEDIUM
RADIUS
ELBOW
90% Alternate Horizontal Vent Termination (Dual Pipe)
SUPPORT
STRAPS
90°
MEDIUM
RADIUS
ELBOWS
12" MIN.
VENT/FLUE
TEE
SCREEN
COMBUSTION
AIR INTAKE.
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
3" MIN.
24" MAX.
12"
MIN
90% Furnace Standard Horizontal Terminations
Above Anticipated Snow Level
(Dual Pipe)
90% Furnace Alternate Vent Termination
Above Anticipated Snow Level
(Dual Pipe)
In a basement installation, the pipes may be run between
the joist spaces. If the pipes must go below the joist and
then up into the last joist space to penetrate the header,
two 45° elbows should be used to reach the header rather
than two 90° elbows.