Whirlpool WGFD293 Instruction Manual download pdf (Page 18)

NOTES:

■ Maximum allowable limits listed are individual lengths for inlet

and flue and not a combination.

■ Elbows and/or tees used in the terminations must be

included when determining the number of elbows in the

piping system.

■ Number of elbows tabulated are for each vent/flue and

combustion air intake pipe.

■ Minimum length of each vent/flue and combustion air intake

pipe is 5 ft (1.5 m) and one elbow/tee.

■ 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.

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)

Counterflow

Direct Vent (Dual Pipe) Maximum Allowable Length of Vent/Flue and Combustion Air Intake Pipe—ft (m)

Number of Elbows

Unit Input

(Btu)

Termination

Style

Pipe—

in. (cm)1 2 3 4 5678

70,000 Standard 2 or 2¹⁄₂

(5.12 or 6.4)

49 (14.9) 46 (14) 43 (13.1) 40 (12.2) 37 (11.3) 34 (10.4) 31 (9.5) 28 (8.5)

3 (7.6) 71 (21.6) 68 (20.7) 65 (19.8) 62 (18.9) 59 (18) 56 (17.1) 53 (16.2) 50 (15.2)

Alternate 2 or 2¹⁄₂

(5.12 or 6.4)

36 (11) 33 (10.1) 30 (9.2) 27 (8.2) 24 (7.3) 21(6.4) 18 (5.5) 15 (4.6)

3 (7.6) 57 (17.4) 54 (16.5) 51 (15.5) 48 (14.6) 45 (13.7) 42 (12.8) 39 (11.9) 36 (11)

90,000 Standard 2 or 2¹⁄₂

(5.12 or 6.4)

61 (18.6) 58 (17.7) 55 (16.8) 52 (15.8) 49 (14.9) 46 (14) 43 (13.1) 40 (12.2)

3 (7.6) 71 (21.6) 68 (20.7) 65 (19.8) 62 (18.9) 59 (18) 56 (17.1) 53 (16.2) 50 (15.2)

Alternate 2 or 2¹⁄₂

(5.12 or 6.4)

48 (14.6) 45 (13.7) 42 (12.8) 39 (11.9) 36 (11) 33 (10.1) 30 (9.2) 27 (8.2)

3 (7.6) 57 (17.4) 54 (16.5) 51 (15.5) 48 (14.6) 45 (13.7) 42 (12.8) 39 (11.9) 36 (11)

A. 12" (30.5 cm) minimum

B. Combustion air intake pipe

C. 90º medium radius elbows

D. Tee

E. Vent/flue pipe

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

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 51 52

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Whirlpool WGFD293 Instruction Manual Page 18

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