Hanging the Back Supply Plenum

Installing the Back Supply Plenum
Installing the Supply Duct Collar
1. Find the center of the back supply plenum.
2. If the back supply plenum is less than 9 ft. 10 in. (299.72 cm) long,
cut opening at the suggested location, centering the opening over
the center of the back supply plenum. (Fig. 12)
3. If the back supply plenum is greater than 9 ft. 10 in. (299.72 cm)
long, divide the length of the back supply by four. This will give you
the center of each half. Cut openings at the suggested location,
centering the duct collar over the center measurement of each half.
(Fig. 13)
4. Place the duct collar(s) over the opening, fastening with screws or
tack-welds every 4 to 6 in. (10.16 to 15.24 cm). (Fig. 14)
L/4		• The 4 in. (10.16 cm)
	L (MODULE LENGTH)	high duct collar is to

		be attached to the
	L/2	back supply.
	L/4
Fig. 13

L (MODULE LENGTH)

L/2 L/2

Fig. 12

Fig. 14

5.Hang the back supply plenum from the ceiling.

(The back supply plenum needs to be mounted 31.25 in. (79.375 cm) above the floor (based upon a canopy hood that will be hung at 78 in. (198.12 cm) above the finished floor. This is measured from the lowest rear edge of the back supply plenum to the finished floor. Leave 6 to 10 in. (15.24 to 25.4 cm) of space below the plenum for access to the air diffusers.)

6.Fasten the Back Supply to the wall, going through the lower Back Supply wall. (Fig. 15)

•These fasteners are to help maintain the location of the Back Supply, and are not intended to hold the weight of the Back Supply Unit.

•The fasteners should not interfere with the removable air diffusers.

•The 31.25 in. (79.375 cm) height is based upon the canopy hood hanging height of 78 in.

(198.12 cm) from the finished floor to the bottom of the hood.

10 Canopy Hood

452413 specifications

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