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ACCESSORY DIMENSIONS (cont)
Horizontal Supply/Return Adapter Installation (581A155,180)
NOTE: CRRFCURB013A00 is a fully factory preassembled horizontal
adapter and includes an insulated transition duct. The pressure drop
through the adapter curb is negligible.
For horizontal return applications: The power exhaust and barometric
relief dampers must be installed in the return air duct.
23"
14 3/4"
6"
3 1/2"
FULLY INSULATED
SUPPLY PLENUM
1" INSULATION
1 1/2 # DENSITY,
STICK PINNED & GLUE
D
2" X 1/4
SUPPORT TYP.
STITCH WELDED
12" WIDE STANDING
SEAM PANELS
ACCESSORY
PACKAGE NO.
CURB
HEIGHT
DESCRIPTION
CRRFCURB013A00
1′-11″
(584)
Pre-Assembled, Horizontal
Adapter Roof Curb
For horizontal return applications: The power exhaust
relief must be installed in the return air duct.
2'-1 5/8"
2'-2 1/16"
1'-6 5/16"
Barometric Relief/Power Exhaust
a48-7457
a48-7458
a48-7459
48-1169df
581A155, 180