Instruction manual

19
TEE
12" MIN.
12" MIN.
TO ROOF OR
HIGHEST
ANTICIPATED
SNOW LEVEL
VENT/FLUE
90º
MEDIUM RADIUS
ELBOWS
COMBUSTION
AIR INTAKE
24" MAX.
3" MIN.
SCREEN
Standard Vertical Terminations (Dual Pipe)
Horizontal terminations should be as shown in the follow-
ing figure. Refer to Section IX, Vent/Flue Pipe and Com-
bustion Pipe - Termination Location for location restric-
tions. A 2 3/8 inch diameter wall penetration is required for
2” diameter pipe while a 3 1/2 inch diameter hole is
required for 3” diameter pipe. To secure the pipe passing
through the wall and prohibit damage to piping connec-
tions, 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.
SCREEN
COMBUSTION
AIR INTAKE
VENT/FLUE
TEE
90º
MEDIUM RADIUS
ELBOW
12" MIN
12" MIN
12" MIN
3" MIN
24" MAX
3" MIN
24" MAX
Standard Horizontal Terminations
(Dual Pipe)
12" MIN
VENT
24" MAX
3" MIN
12" MIN
SCREEN
24" MAX
AIR
INTAKE
90°
MEDIUM
RADIUS
ELBOW
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.
Standard Horizontal Terminations
Above Anticipated Snow Level (Dual Pipe)
Air Intake
Screen
90°
Medium Radius
Elbow
Vent
12" Min.
24" Max.
12" Min.
24" Max.
3" Min.
12" Min. Above
Highest Anticipated
Snow Level
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.
CONCENTRIC VENT TERMINATION
Refer to the directions provided with the concentric vent kit
for installation specifications.
X. Condensate Drain Lines and
Drain Trap
GENERAL
A condensing gas furnace achieves its high level of effi-
ciency by extracting almost all of the heat from the products
of combustion and cooling them to the point where con-
densation takes place. The condensate which is gener-
ated must be piped to an appropriate drain location.
In upright installations, the furnace’s drain hoses may exit
either the right or left side of the furnace. NOTE: If the
alternate vent/flue outlet is utilized in an upright installa-
tion, the drain trap and drain connections must be located
on the same side as the alternate vent/flue outlet.