If using an existing vent system, clean lint from the entire length of the system and make sure exhaust hood is not plugged with lint. Replace any plastic or metal foil vent with rigid metal or flexible metal vent.
Plan installation to use the fewest number of elbows and turns.
AB
Exhaust Air Flow
A.Better
B.Good
Allow as much room as possible when using elbows or making turns. Bend vent gradually to avoid kinking.
Vent outlet is located at the center of the bottom dryer back.
The vent can be routed up, down, left, right, behind the dryer or straight out the back of the dryer.
Vent System Length
Multiple Dryer Venting
■A main vent can be used for venting a group of dryers. Main vent should be sized to remove 200 CFM of air per dryer.
■
Each vent should enter the main vent at an angle pointing in the direction of the airflow. Vents entering from the opposite side should be staggered to reduce the exhausted air from interfering with the other vents.
The maximum angle of each vent entering the main vent should be no more than 30°.
A
30° max.
air flow |
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| B | |
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Maximum length of vent system depends upon the type of vent used, number of elbows and type of exhaust hood. The maximum length for both rigid and flexible vent is shown in the chart.
Maximum Vent Length
4" (10.2 cm) Diameter Exhaust Hoods
Rigid Metal Vent
No. of 90° turns | Box Hood and Louvered Style | Angled Hood Style |
|
0 | 64 ft. (19.5 m) | 58 ft. (17.7 m) |
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1 | 54 ft. (16.5 m) | 48 ft. (14.6 m) |
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2 | 44 ft. (13.4 m) | 38 ft. (11.6 m) |
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3 | 35 ft. (10.7 m) | 29 ft. (8.8 m) |
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4 | 27 ft. (8.2 m) | 21 ft. (6.4 m) |
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Flexible Metal Vent |
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No. of 90° turns | Box Hood and Louvered Style | Angled Hood Style |
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0 | 36 ft. (11.0 m) | 28 ft. (8.5 m) |
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A. Individual dryer vent
B. Main vent
Keep air openings free of dry cleaning fluid fumes. Fumes create acids which, when drawn through the dryer heating units, can damage dryers and loads being dried.
A
If an exhaust hood cannot be used:
The outside end of the main vent should have a sweep elbow directed downward. If the main vent travels vertically through the roof, rather than through the wall, install a 180° sweep elbow on the end of the vent at least 2 feet (61 cm) above the highest part of the building. The opening wall or roof shall have a diameter ¹⁄₂" (1.3 cm) larger than the vent diameter. The vent should be centered in the opening.
1 | 31 ft. (9.4 m) | 23 ft. (7.0 m) |
2 | 27 ft. (8.2 m) | 19 ft. (5.8 m) |
3 | 25 ft. (7.6 m) | 17 ft. (5.2 m) |
4 | 23 ft. (7.0 m) | 15 ft. (4.6 m) |
B
A
D
C
For vent systems not covered by the vent specification chart, see Whirlpool Service Manual, “Exhausting Whirlpool Dryers,” Part No. LIT603197, available from your Whirlpool parts distributor.
If dryer is installed in a confined area, such as a bedroom, bathroom or closet, provision must be made for enough air for combustion and ventilation. (Check governing codes and ordinances.) See “Recessed Area and Closet Installation
C
E
A. Exhaust hood or elbow B. Wall
C. Main collector vent D. Horizontal vent
E. 180° sweep elbow F. Vertical vent
G. Roof
Instructions” in the “Location Requiements” section.
A
F
2 ft. (61 cm) min. above highest point of building
greater back pressure than other hood types. For permanent installation, a stationary vent system is required.
G
Do not install screening or cap over the end of the vent.
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