26
FORM 145.18-IOM2
ISSUE DATE: 06/17/2020
SECTION 1 - INSTALLATION
1/2”
DRYWALL
WALL STUD
1/8” THICK FIELD SUPPLIED
GASKET TAPE
APPLIED AROUND
FULL PERIMETER OF
SUPPLY GRILLE WITH
VOLUME DAMPER
VERTICAL STACK CABINET
TOP VIEW
DETAIL A
MOUNTING SCREWS
VERTICAL STACK CABINET
TOP VIEW
2-1/4” MIN.
(UNIT SUPPLY DUCT FLANGE
TO 1/2” DRYWALL FACE)
FACTORY SUPPLIED
1” DUCT FLANGE
OPTIONAL
FRAMING STUDS
FOR SUPPLY OPENING
DETAIL A
Vertical Stack Cabinet
Top View
1/8-inch Thick Field Supplied
Gasket Tape Applied Around
Full Perimeter of Supply
Grilled with Volume Damper
Wall Stud
Factory Supplied
1-inch Duct Flange
Detail A
Optional Framing Studs
for Supply Opening
2.25-inch Minimum
(Unit Supply Duct Flange
to 0.5-inch Drywall Face)
B
C
Vertical Stack Cabinet
Top View
Optional Opposed Blade Damper
D
E
0.5-inch Drywall
Mounting Screws
A
Louvered Supply Grille
Detail A
UNIT
SIZE
A
(SUPPLY GRILLE
NOMINAL
WIDTH)
B
(GRILLE
WIDTH)
C
(GRILLE
FLANGE WIDTH)
D
(ROUGH IN
WIDTH)
E
(UNIT
WIDTH)
9–18
X
B=X - 0.5
C=X + 1.75
23 3/4 ± 1/8
20
24–36
X
B=X - 0.5
C=X + 1.75
27 3/4 ± 1/8
24
NOTES:
1. All dimensions are in inches and typical for factory supplied grilles only.
2.
Check dimensions for field-supplied grilles because dimensions can be different.
LD19321
FIGURE 18 -
UNIT MOUNTED SUPPLY GRILLE INSTALLATION
