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inserted into the notches on the basepan to properly seal. The
notches are covered by the tape used to secure the insulation to
the basepan and are not easily seen. See Fig. 10 for position of
the notches in the basepan. Seals around duct openings must be
tight. Secure with screws as shown in Fig. 11. Cover seams
with foil duct tape.
Field-supplied flanges should be attached to horizontal duct
openings and all ductwork should be secured to the flanges. In-
sulate and weatherproof all external ductwork, joints, and roof
or building openings with counter flashing and mastic in accor-
dance with applicable codes.
Do not cover or obscure visibility to the unit's informative data
plate when insulating horizontal ductwork.
REMOVABLE HORIZONTAL
RETURN DUCT OPENING COVER
REMOVABLE HORIZONTAL
SUPPLY DUCT OPENING COVER
Fig. 9 — Horizontal Conversion Panels
NOTCHES
BASEPAN
Fig. 10 — Location of Notches
Step 8 — Install Outside Air Hood
ECONOMIZER HOOD REMOVAL AND SETUP
TORY OPTION
1.
The hood is shipped in knock-down form and located in
the return air compartment. It is attached to the econo-
mizer using two plastic tie-wraps.
2.
To gain access to the hood, remove the filter access panel.
NOTCHES
(See Fig. 12.)
3.
Locate and cut the (2) plastic tie-wraps, being careful to
not damage any wiring. (See Fig. 13.)
4.
Carefully lift the hood assembly through the filter access
opening and assemble per the steps outlined in Econo-
mizer Hood and Two-Position Hood on page 12.
11
SCREWS
BASEPAN
Fig. 11 — Horizontal Duct Panels In Place
INDOOR COIL ACCESS PANEL
Fig. 12 — Typical Access Panel Locations
DUCT COVERS
SHEET METAL
FACE UP
FAC-
—
FILTER ACCESS PANEL
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