Make-Up Air Requirements

A dryer exhausts 214 cfm (measured at back of dryer) and sufficient make-up air must be supplied to replace air exhausted by each dryer.

An unobstructed opening of at least 260 cm2 (40 square inches) of outdoor make-up air MUST be provided for each dryer. Protective louvers in the opening to the outdoors can reduce air movement approximately 35 to 40 percent. Be sure the opening is large enough to compensate for any louvers.

If it is necessary to duct make-up air to the dryer, increase the area of the ductwork by 25 percent to compensate for any reduction in air movement. In addition, the make-up air duct should extend down to within approximately two feet from the floor, directly behind the dryer.

Exhaust System

IMPORTANT: Keep exhaust duct as short as possible.

NOTE: Be certain old ducts are cleaned before installing your new dryer.

For best drying results, recommended maximum length of exhaust system is shown below.

To prevent backdraft when dryer is not in operation, outer end of exhaust pipe must have a weather hood with hinged dampers (obtain locally).

NOTE: Weather hood should be installed at least 30.5 cm (12 inches) above the ground. Larger

clearances may be necessary for installations where heavy snowfall can occur.

Exhaust Direction

The dryer can be exhausted to the outdoors through the back, left, right or bottom of the dryer. EXCEPTION:

Gas dryers cannot be vented out the left side because of the burner housing.

Dryer is shipped from factory ready for rear exhaust; no kits required.

Exhausting the dryer through sides or bottom can be accomplished by installing a Directional Exhaust Kit 528P3 available as optional equipment at extra cost.

D361IE0A

528P3 Directional Exhaust Kit

Number of

 

Weather Hood Type

90° Elbows

 

 

Recommended

Use only for short run installations

 

10.16 cm

6.35 cm

 

10.16 cm

(4")

D011IE2Q

(4")

D011IE2P

(2-1/2")

 

Maximum length of 10.2 cm (4") diameter rigid metal duct.

0

 

13.4 m (44 feet)

 

10.4 m (34 feet)

1

 

10.4 m (34 feet)

 

7.9 m (26 feet)

2

 

7.9 m (26 feet)

 

6.1 m (20 feet)

3

 

6.1 m (20 feet)

 

4.3 m (14 feet)

 

Maximum length of 10.2 cm (4") diameter flexible metal duct.

0

 

7.3 m (24 feet)

 

6.1 m (20 feet)

 

 

1

 

6.1 m (20 feet)

 

4.9 m (16 feet)

2

 

4.9 m (16 feet)

 

3.7 m (12 feet)

3

 

3.7 m (12 feet)

 

2.4 m (8 feet)

 

 

 

 

 

NOTE: Deduct 1.8 m (6 feet) for each additional elbow.

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