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Vent/Flue And Combustion Air Pipe Terminations - Whirlpool WGFM195 Installation Instructions Manual

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Direct Vent (Dual Pipe) Maximum Allowable Length of Vent/Flue and Combustion Air Intake Pipe—ft (m)
Unit Input (Btu)
Termination Style
045_3
Standard
Alternate
070_3
Standard
Alternate
070_4
Standard
Alternate
090_4
Standard
Alternate
090_5
Standard
Alternate
115_5
Standard
Alternate
NOTES:
Minimum length of each vent/flue and combustion air intake
pipe is 5 ft (1.5 m) and one elbow/tee.
Elbows and/or tees used in the terminations must be
included when determining the number of elbows in the
piping system.
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 "Vertical
Terminations (Dual Pipe)" illustration. Refer to "Termination
Locations" in this section for details concerning location
restrictions. The penetrations through the roof must be sealed
tight with the proper flashing such as is used with a plastic
plumbing vent.
Vertical Vent Terminations (Dual Pipe)
B
A
G
H
A. 12" (30.5 cm) minimum
B. Combustion air intake pipe
C. 90º medium radius elbows
D. Tee
E. Vent/flue pipe
Pipe—in. (cm)
2 or 2¹⁄₂ (5.12 or 6.4)
2 or 2¹⁄₂ (5.12 or 6.4)
2 or 2¹⁄₂ (5.12 or 6.4)
2 or 2¹⁄₂ (5.12 or 6.4)
2 or 2¹⁄₂ (5.12 or 6.4)
3 (7.6)
2 or 2¹⁄₂ (5.12 or 6.4)
3 (7.6)
3 (7.6)
3 (7.6)
3 (7.6)
3 (7.6)
3 (7.6)
3 (7.6)

Vent/Flue and Combustion Air Pipe Terminations

D
E
C
F
F. 24" (61 cm) maximum, 3" (7.6 cm)
minimum
G. Screen
H. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
Number of Elbows
2
3
4
68 (20.7)
65 (19.8) 62 (18.9) 59 (18)
55 (16.8)
52 (15.8) 49 (14.9) 46 (14)
68 (20.7)
65 (19.8) 62 (18.9) 59 (18)
55 (16.8)
52 (15.8) 49 (14.9) 46 (14)
46 (14)
43 (13.1) 40 (12.2)
68 (20.7)
65 (19.8) 62 (18.9) 59 (18)
33 (10.1)
30 (9.2)
27 (8.2)
54 (16.5)
51 (15.5) 48 (14.6) 45 (13.7) 42 (12.8) 39 (11.9) 36 (11)
68 (20.7)
65 (19.8) 62 (18.9) 59 (18)
55 (16.8)
52 (15.8) 49 (14.9) 46 (14)
68 (20.7)
65 (19.8) 62 (18.9) 59 (18)
55 (16.8)
52 (15.8) 49 (14.9) 46 (14)
68 (20.7)
65 (19.8) 62 (18.9) 59 (18)
55 (16.8)
52 (15.8) 49 (14.9) 46 (14)
2¹⁄₂" (6.4 cm) or 3" (7.6 cm) diameter pipe can be used in
place of 2" (5.1 cm) diameter pipe.
Increased clearance configurations using two 45º long-sweep
elbows should be considered equivalent to one 90º elbow.
Horizontal terminations should be as shown in "Standard
Horizontal Vent Terminations (Dual Pipe)" illustration. Refer to
"Termination Locations" in this section for location restrictions.
A 2³⁄₈" (6.1 cm) diameter wall penetration is required for 2"
(5.1 cm) diameter pipe.
A 3" (7.6 cm) diameter hole is required for a 2¹⁄₂" (6.4 cm)
pipe.
A 3¹⁄₂" (8.9 cm) diameter hole is required for 3" (7.6 cm)
diameter pipe.
To secure the pipe passing through the wall and prohibit
damage to the piping connections, a coupling should be
installed on either side of the wall and solvent cemented to a
length of pipe connecting the 2 couplings.
The length of pipe 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
7
56 (17.1) 53 (16.2) 50 (15.2)
43 (13.1) 40 (12.2) 37 (11.3)
56 (17.1) 53 (16.2) 50 (15.2)
43 (13.1) 40 (12.2) 37 (11.3)
Not Recommended
56 (17.1) 53 (16.2) 50 (15.2)
Not Recommended
56 (17.1) 53 (16.2) 50 (15.2)
43 (13.1) 40 (12.2) 37 (11.3)
56 (17.1) 53 (16.2) 50 (15.2)
43 (13.1) 40 (12.2) 37 (11.3)
56 (17.1) 53 (16.2) 50 (15.2)
43 (13.1) 40 (12.2) 37 (11.3)
8
19

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