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Fig. 9 — Horizontal Duct Panels In Place
Step 8 — Install Outside Air Hood
ECONOMIZER AND TWO-POSITION DAMPER HOOD
PACKAGE
REMOVAL AND
OPTION)
NOTE: Economizer and two position damper are not available
as factory-installed options for single phase (-J voltage code)
models.
The hood is shipped in knock-down form and must be
field assembled. The indoor coil access panel is used as the
hood top while the hood sides, divider and filter are pack-
aged together, attached to a metal support tray using plastic
stretch wrap, and shipped in the return air compartment be-
hind the indoor coil access panel. The hood assembly's met-
al tray is attached to the basepan and also attached to the
damper using two plastic tie-wraps.
1.
To gain access to the hood, remove the filter access
panel. See Fig. 10.
FILTER ACCESS PANEL
Fig. 10 — Typical Access Panel Locations
2.
Locate the (2) screws holding the metal tray to the
basepan and remove. Locate and cut the (2) plastic tie-
wraps securing the assembly to the damper. See Fig. 11.
Avoid damaging any wiring or cutting tie-wraps secur-
ing any wiring.
SCREWS
DUCT COVERS
SHEET METAL
FACE UP
BASEPAN
SETUP
(FACTORY
COMPRESSOR
ACCESS PANEL
OUTDOOR-AIR OPENING AND
INDOOR COIL ACCESS PANEL
Fig. 11 — Economizer and Two-Position Damper Hood
Parts Location
3.
Carefully lift the hood assembly (with metal tray)
through the filter access opening and assemble per the
steps outlined in the "Economizer Hood and Two-Posi-
tion Hood Assembly" section below.
ECONOMIZER AND TWO-POSITION HOOD
ASSEMBLY
NOTE: If the power exhaust accessory is to be installed on the
unit, the hood shipped with the unit will not be used and must
be discarded. Save the aluminum filter for use in the power ex-
haust hood assembly.
1.
The indoor coil access panel will be used as the top of
the hood. Remove the screws along the sides and bot-
tom of the indoor coil access panel. See Fig. 12.
INDOOR
COIL
ACCESS
PANEL
Fig. 12 — Indoor Coil Access Panel Relocation
2.
Swing out indoor coil access panel and insert the hood
sides under the panel (hood top). Use the screws pro-
vided to attach the hood sides to the hood top. Use
screws provided to attach the hood sides to the unit. See
Fig. 13.
11
HOOD PARTS
PLASTIC TIE WRAP
QTY (2)
SCREWS FOR
METAL TRAY
QTY (2)
TOP
PANEL
TOP
PANEL
CAULK
HERE
INDOOR
COIL
ACCESS
PANEL
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