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12
side duct opening covers (see Fig. 9) and remove covers. Use
the screws to install the covers on vertical duct openings with
the insulation-side down. The panels must be inserted into the
notches on the basepan to properly seal. The notches are cov-
ered 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. Se-
cure 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.
Fig. 9 — Horizontal Conversion Panels
Fig. 10 — Location of Notches
Fig. 11 — Horizontal Duct Panels In Place
Step 8 — Install Outside Air Hood
ECONOMIZER HOOD REMOVAL AND SETUP
—
FAC-
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.
(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 13.
Fig. 12 — Typical Access Panel Locations
REMOVABLE HORIZONTAL
SUPPLY DUCT OPENING COVER
REMOVABLE HORIZONTAL
RETURN DUCT OPENING COVER
BASEPAN
NOTCHES
NOTCHES
SCREWS
DUCT COVERS
SHEET METAL
FACE UP
BASEPAN
FILTER ACCESS PANEL
INDOOR COIL ACCESS PANEL
Summary of Contents for WeatherMaster 48HC14
Page 5: ...5 Fig 2 Unit Dimensional Drawing 14 Size Unit ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing 14 Size Unit cont ...
Page 9: ...9 Fig 4 Roof Curb Details ...
Page 25: ...25 Fig 48 48HC 14 Controls Wiring Diagram 208 230 v 460 v 575 v ...
Page 26: ...26 Fig 49 48HC 14 Power Wiring Diagram 208 230 v 460 v ...
Page 27: ...27 Fig 50 48HC 14 Power Wiring Diagram 575 v ...
Page 29: ...29 Fig 53 Typical Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Page 44: ...44 Fig 62 48HC14 ComfortLink Control Wiring Diagram ...
Page 45: ...45 Fig 63 48HC14 ComfortLink Power Wiring Diagram ...
Page 46: ...46 Fig 64 48HC14 ComfortLink with Humidi MiZer Power Wiring Diagram ...