Whirlpool 8535845 Plan the exhaust vent installation, Determine vent length, Preferred

Plan the exhaust vent installation

Typical installations exhaust from the rear of the dryer.

exhaust outlet

The exhaust outlet is located at the center of the rear of the dryer.

Route the vent

The exhaust vent can be routed up, down, left, right or straight out the back of the dryer. See “Recessed area/closet installation” section, Page 4, for space requirements.

exhaust air flow

acceptable

better

Select the route that will provide the straightest and most direct path outdoors. Plan the installation to use the fewest number of elbows and turns. Avoid making 90° turns.

When using elbows or making turns, allow as much room as possible. Bend vent gradually to avoid kinking.

Determine vent length

Preferred —

		4"
					4"
When you have a 4' hood
	Maximum length of 4" diameter
			metal vent
Number of	Rigid			Flexible
90° elbows				(fully extended)
0	64 feet			36 feet
1	54 feet			31 feet
2	44 feet			27 feet
3	35 feet			25 feet
4	27 feet			23 feet

Acceptable —

					2-1/2"
When you have a 2-1/2' hood
	Maximum length of 4" diameter
		metal vent
Number of	Rigid			Flexible
90° elbows			(fully extended)
0	58 feet				28 feet
1	48 feet				23 feet
2	38 feet				19 feet
3	29 feet				17 feet
4	21 feet				15 feet

The maximum length of the exhaust

system depends upon:

•the type of vent (rigid or flexible metal).

•the number of elbows used.

1.See the exhaust vent length chart that matches your type hood for the maximum vent lengths you can use.

Do not use vent runs longer than specified in exhaust vent length charts.

Exhaust systems longer than specified will:

—accumulate lint creating a potential fire hazard.

—shorten the life of the dryer.

—reduce performance, resulting in longer drying times and increased energy usage.

2.Determine the number of elbows you will need.

3.In the column listing the type of metal vent you are using (rigid or flexible), find the maximum length of metal vent on the same line as the number of elbows.

4.Determine the number of 4-inch diameter vent clamps required.

The maximum length using a 2" x 6" rectangular vent with 2 elbows and a 2-1/2" exhaust hood is 8 feet.

For exhaust systems not covered by exhaust vent length charts (such as multiple unit hookups, plenums, and power-assist fans), see Service Manual, Part No. 603197. (To purchase the Service Manual, see your Use and Care Guide for a toll-free telephone number.)

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