Greenheck Waterwash (458292) - Manual (Page 12)

12 April 2005
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INSTALLATION INSTRUCTIONS FOR EXTERNAL SUPPLY PLENUMS
USING A THREADED ROD
ASP - Air Curtain Supply Plenum
VSP - Variable Supply Plenum
1/4 in. SS NUT
1/4 - 20 UNC - 2A SS BOLT
SS FLAT WASHER
HOOD
Using the UL Listed Fastener Provided
1. Drill a 9/32 in. hole for the 1/4 in. bolt from the inside of the
supply plenum to inside the hood. Fasteners are to be located
max. 6 in. from the end of the hood with max. spacing
between bolts 36 in.
DO NOT include utility cabinets or fillers when figuring bolt
placement.
DO NOT bolt the supply plenum to a fire/utility cabinet.
2. Push bolt through hole, using the washer and nut.
3. Hand tighten, then use a wrench until fully tightened. Caulk
around bolts from inside of hood as necessary.
SUPPLY PLENUM WEIGHTS
Hood Height 24 in. 24 in. 30 in. 30 in.
Hanging Height 78 in. 84 in. 78 in. 84 in.
ASP 9.5 lbs/ft. 11.7 lbs/ft. 11.7 lbs/ft. 13.9 lbs/ft.
VSP 16.5 lbs/ft. 18.7 lbs/ft. 18.7 lbs/ft. 20.9 lbs/ft.
BSP 42 lbs/ft. 42.2 lbs/ft. 42.2 lbs/ft. 44.4 lbs/ft.
Installing External Supply Plenum
1. Insert 1⁄2 in. 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 below)
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 SCS-1009, 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 in. to 2 in. intervals, or sheet metal screws
at 3 in. to 6 in. intervals.