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Installing Duct Collar
Overview of exhaust and supply plenum locations
TOP VIEW
Hanger Bracket
Exhaust Plenum
8.0
Hood Length
BACK VIEW
8.0
Top of Hood
1.0
12.0
Exhaust Plenum
Dimensions are shown in inches.
1. The exhaust duct connection needs to be located
NOTE: 1. Exhaust duct connection to be located within 48 inches from center of hood length to center of duct connection.
2. UL Listed hood assembly to be used only with Greenheck Fan Corp. labelled subassembly for exhaust hood without exhaust damper part no. DC
within 48 in. (121.92 cm) from the center of the
hood length to the center of the duct connection.
2. The exhaust duct connection is to be a continuous
liquid-tight weld. Weld with a non-ferrous filler
wire, such as silicon bronze or stainless steel filler
wire. Protect all stainless steel areas from weld
splatter.
®
14.0
Duct cut out area
3.0
Front of Hood
8.0
8.0
Duct cut out area
3.0
Hood
Width
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.
Exhaust Duct
Connection
Exhaust duct connection is to be
a continuous liquid-tight weld to hood.
Supply Duct
Connection
Model GGH2O
15
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