Exhaust Requirements

WARNING

Improperly sized or assembled ductwork causes excess back pressure which results in slow drying, lint collecting in the duct, lint blowing back into the room, and increased fire hazard.

W355

Exhaust ducts shall be constructed of sheet metal or other noncombustible material. Such ducts must be equivalent in strength and corrosion resistance to ducts made of galvanized sheet steel not less than 0.0195 inch (0.495 mm) thick.

Where the exhaust duct pierces a combustible wall

or ceiling, provide an opening with a diameter 4 inches (102 mm) larger than the diameter of the exhaust duct. Center duct in the opening. When ducts pass through walls, ceilings, floors or partitions, the space around the duct shall be sealed with noncombustible material. Refer to Figure 12.

NOTE: FOR BEST PERFORMANCE, provide an individual exhaust duct for each tumbler. Do not install a hot water heater in a room containing tumblers. It is better to have the water heater in a separate room with a separate air inlet.

Alternate Venting for 120 Pound Tumblers

The 120 pound tumbler is equipped from the factory to exhaust from the top; however, it may be converted to exhaust out the rear by doing the following (refer to Specifications and Dimensions):

1.Remove belt guard cover.2.Remove 10 inch diameter elbow and vertical duct.3.Cut out shape from belt guard cover. Refer to Figure 8.4.Screw octagonal piece over 10 inch diameter opening in top of belt guard.

5.Attach new exhaust duct to exhaust thimble on rear panel, following all requirements in this section.

6.Replace belt guard cover, sliding cut-out section around duct.

CUT

1

1Discard

2Cover (Refer to step 4)

CUT

2

T496I

T496I

Figure 8

30

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