Whirlpool 3406449 installation instructions Aaf, Metal flexible vent must be fully

Exhaust requirements

Aaf/ I

Fire Hazard

Use a heavy metal vent. Do not use a plastic vent. Do not use a metal foil vent. Failure to do so can result in death or fire.

Do not use non-metal flexible vent, metal vent that is smaller than four inches in diameter or exhaust hoods with magnetic latches.

Do not exhaust dryer into a chimney, furnace cold air vent, al-tic of crawl space, or any other vent used for venting.

Do not install flexible vent in enclosed walls, ceilings or floors.

If using an existing exhaust system, clear lint from entire length of exhaust system Make sure exhaust hood is not plugged with lint.

The exhaust system should be inspectec and cleaned yearly.

Replace any vinyl or metallized plastic foil exhaust vent with rigid metal or flexible metal vent.

Use duct tape to seal all joints.

exhaust airflow

Four-inchmetal exhaust vent is reql lired. Plan installation to use the fewest number of elbows and turns.

Metal flexible vent must be fully

extended and supported when the dryer is in its final position. DO NOT KINK OR CRUSH THE VENT. The metal flexible vent must be completely open to allow adequate exhaust air to flow.

Allow as much room as possible when using elbows or making turns. Bend vent gradually to avoid kinking. Remove excess flexible vent to avoid sagging and kinking that may result in reduced air flow.

Exhaust outlet is located at the center of the bottom dryer back.

The exhaust vent can be routed up, down, left, right, behind the dryer or straight out the back of the dryer.

Kits are available to convert the exhaust vent to be routed through the cabinet right or left side or through the bottom. See Page 3 for Exhaust Kit part numbers. See Page 11 for product dimensions and recessed area requirements.

Maximum length of exhaust 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.

I	I	I
	EXHAUST HOOD	TYPE

available from your Whirlpool parts distributor.

Service check: The back pressure in any exhaust system must not exceed

0.6inches of water column measured with an inclined manometer at the point that the exhaust vent connects to the dryer.

Exhausting the electric dryer outside

is recommended. A closet installation must be exhausted outside. Recessed installation that is not exhausted outside must use Exhaust Deflector, Part No. 3391278 (electric dryer only), available from your dealer.

If dryer is installed in a confined area, such as a bedroom, bathroom or closet, it must be exhausted to the outside and provision made for enough air for combustion and ventilation. (Check governing codes and ordinances.) See “Recessed area and closet installation instructions” on Page 11.

An exhaust hood should cap the exhaust vent to prevent exhausted air from returning into the dryer. The outlet of the hood must be at least 12 inches from the ground or anything else that may be in the path of the exhaust.

Four-inch outlet hood is preferred. However, a 2-l/2-inch outlet exhaust hood may be used. A 2-l/2-inch outlet creates greater back pressure than other hood types. For permanent installation, a stationary exhaust system is required.

A main exhaust vent can be used for exhausting a group of dryers. Main exhaust vent should be sized to remove 200 CFM of air per dryer.

Large-capacity lint screens of proper design may be used in the main exhaust vent if checked and cleaned frequently. The room where the dryers are located should have make-up air equal to or greater than the CFM of all the dryers in the room.

III

MAXIMUM LENGTH OF 4-INCH DIAMETER RIGID METAL VENT

0	43	n.	41	ft.	36	f-t.
1	33	ft.	31	Fr.	26	ft.
2	ii	it.	21	ft.	16	ft.

MAXIMUM LENGTH OF 4-INCH DIAMETER FLEXIBLE METAL VEN

0	30	ft.	29	ft.	24 ft.
1	24	ft.	23	ft.	18n.
2	16ft.		15	n.	10n.

For exhaust systems not covered by the exhaust length chart, see Whirloool Service Manual, “Exhausting Whirlpool Dryers,” Part No. 603197,

Back-draft Damper Kits, Part No. 3391910, are available from your Whirlpool dealer and should be installed in each dryer’s exhaust vent to prevent exhausted air from returning into the dryers and to keep the exhaust in balance within the main exhaust vent. Unobstructed air openings are required.

Page 2