Greenheck Fan GGH20 manual Using the Uni-Strut Option #2, Using the Threaded Rod Option #3

Using the Uni-Strut - Option #2

1.The uni-strut (supplied by others) that holds the hood up cantilevers over the end of the hood and is mounted to the supply plenum hanger brackets.

Option #3

Threaded Rod

supplied by others

Threaded Rod

Option #2

The uni-strut (U channel) that holds the hood up, cantilevers over the end of the hood and is mounted to the Air Curtain Supply Plenum (ASP) hanger brackets

END VIEW

Hood

Variable Supply Plenum

(HSP or VSP)

Air Curtain Supply Plenum

(ASP)

Using the Threaded Rod - Option #3

1.Insert 1/2 in. (12.7 mm) diameter threaded rod (by others) into hanger brackets on the supply plenum top. Raise and hang the external supply plenum from adequate roof or ceiling supports.

2.The external supply plenum should be resting lightly against the hood. The hood is used to position the plenum only, it is not intended to support the plenum. All hanger brackets must be used and the plenum must be properly supported while lifting to prevent damage or distortion. The supply plenum must be hung level to operate properly.

(Optional fastening of supply plenum to hood. See directions).

3.It is recommended that caulk be applied at the mating seams and surfaces of the plenum, the hood, and the wall. If the supply plenum is next to a wall, you will also need to caulk around the surface next to the wall. Caulk the joints with NSF Approved silicone caulk (GE SCS1000, or its equivalent). The caulk is not provided.

Installing the Supply Duct Collar to the Plenum

1.Place the duct collar(s) over the opening, fastening with tack-welds at 1 to 2 in. (2.54 to 5.08 cm) intervals, or sheet metal screws at 3 to 6 in.

(7.62 to 15.24 cm) intervals.

Supply Duct

Connection

Supply duct connection to be tack-welded with 1 to 2 inch tacks or sheet metal screws at 3 to 6 inch spacing to hood.

External Supply Plenum Weights, Dimensions and Supply Rates

	Weight		Width		Height		Length per
External Supply							section			Recommended
Plenum Type	(lbs/ft)	(kg/ft)	(in)	(mm)	(in)	(mm)	(ft)	(m)		Supply Rate
Back Supply	35.0	15.878	6	152.4	Variable	Variable	3 to 16	.91 to		145 cfm/ft
								4.88		(246.36 m3/hr)
Air Curtain Supply	9.5	4.31	14	355.6	10	254	3 to 16	.91 to		110 cfm/ft
• 14 inch								4.88		(186.89 m3/hr)
Air Curtain Supply	12.5	5.67	24	609.6	10	254	3 to 16	.91 to		145 cfm/ft
• 24 inch								4.88		(246.36 m3/hr)
									curtain	0-80 cfm/ft
								.91 to		(0-135.92 m3/hr)
Variable Supply	16.0	7.26	12	304.8	18	457.20	3 to 16
								4.88	face	80-160 cfm/ft
										(135.92 -271.84 m3/hr)
Horizontal Supply	14.0	6.35	12	304.8	18	457.20	3 to 16	.91 to		150 cfm/ft
								4.88		(254.85 m3/hr)

10 Model GGH2O

®