T F I M D V F - Goodman GKS9 Installation Instructions Manual

Direct Vent (Dual Pipe)
Maximum Allowable Length of Vent/Flue & Combustion
Air Intake Pipe (ft)
Unit Input Vent/Flue/Air Intake
(Btu) Termination
Standard
045_3
Alternate
Standard
Alternate
070_3
Standard
Alternate
Standard
Alternate
070_4
Standard
Alternate
Standard
Alternate
090_4
Standard
Alternate
Standard
Alternate
090_5
Standard
Alternate
Standard
115_5
Alternate
1) One 90° elbow should be secured to the combustion air intake connec-
tion.
2) Minimum requirement for each vent pipe is five (5) feet in length and one
elbow/tee.
3) Tee used in the vent/flue termination must be included when determining
the number of elbows in the piping system.
4) 2 1/2" or 3" diameter pipe can be used in place of 2" diameter pipe.
5) Increased Clearance Configurations using (2) 45 deg. Long Sweep
elbows should be considered equivalent to one 90 deg. elbow.
V /F C
ENT LUE AND OMBUSTION
The vent/flue and combustion air pipes may terminate vertically, as
through a roof, or horizontally, as through an outside wall.
Vertical pipe terminations should be as shown in the following
figure. Refer to Section IX, Vent/Flue Pipe and Combustion 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.
COMBUSTION
AIR INTAKE
12" MIN.
12" MIN.
TO ROOF OR
HIGHEST
ANTICIPATED
SNOW LEVEL
Vertical Terminations (Dual Pipe)
Pipe
(1) (2) (3)( 5)
Number of Elbows
(4 )
Size
(in.) 2 3 4 5 6
2 or 2 1/2 68 65 62 59 56 53 50
2 or 2 1/2 55 52 49 46 43 40 37
2 or 2 1/2 36 33 30 27 24 21 18
2 or 2 1/2 23 20 17 14 11 8
3 68 65 62 59 56 53 50
3 55 52 49 46 43 40 37
2 or 2 1/2 55 52 49 46 43 40 37
2 or 2 1/2 42 39 36 33 30 27 24
3 68 65 62 59 56 53 50
3 55 52 49 46 43 40 37
2 or 2 1/2 37 34 31 28 25 22 19
2 or 2 1/2 24 21 18 15 12 9
3 68 65 62 59 56 53 50
3 55 52 49 46 43 40 37
2 or 2 1/2 39 36 33 30 27 24 21
2 or 2 1/2 26 23 20 17 14 11 8
3 68 65 62 59 56 53 50
3 55 52 49 46 43 40 37
3 68 65 62 59 56 53 50
3 55 52 49 46 43 40 37
A P T
IR IPE ERMINATIONS
VENT/FLUE
Horizontal terminations should be as shown in the following fig-
ure. Refer to Section IX, Vent/Flue Pipe and Combustion Pipe -
Termination Location for location restrictions.
wall penetration is required for 2" diameter pipe. A 3" diameter hole
is required for a 2 1/2" pipe and 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
7 8
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.
5
6
Standard Horizontal Terminations (Dual Pipe)
Alternate Horizontal Vent Termination (Dual Pipe)
SUPPORT
STRAPS
COMBUSTION
AIR INTAKE.
Standard Horizontal Terminations Above Anticipated Snow
17
12" MIN
3" MIN
24" MAX
3" MIN
24" MAX
90º
MEDIUM RADIUS
ELBOW
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
90°
MEDIUM
RADIUS
ELBOW
24" MAX
3" MIN
24" MAX
AIR
INTAKE
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
12" MIN
3" MIN.
24" MAX.
12" MIN. ABOVE
HIGHEST ANTICIPATED
90°
SNOW LEVEL
MEDIUM
RADIUS
ELBOWS
Level (Dual Pipe)
A 2 3/8" diameter
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
VENT/FLUE
TEE
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL