Pad-Mounted Installation; Frame-Mounted Installation; Step 3 - Inspect Unit; Step 4 - Provide Unit Support - Carrier WeatherMaster 48HC14 Installation Instructions Manual

6. Install outdoor air hood
7. Install condensate line trap and piping
8. Make electrical connections
9. Install other accessories

PAD-MOUNTED INSTALLATION

1. Prepare pad and unit supports
2. Check and tighten the bottom condensate drain connection
plug
3. Rig and place unit
4. Convert unit to side duct connection arrangement
5. Install field-fabricated ductwork at unit duct openings
6. Install outdoor air hood
7. Install condensate line trap and piping
8. Make electrical connections
9. Install other accessories

FRAME-MOUNTED INSTALLATION

Frame-mounted applications generally follow the sequence for
a curb installation. Adapt as required to suit specific installa-
tion plan.
Step 3 — Inspect Unit
Inspect unit for transportation damage. File any claim with
transportation agency.
Confirm before installation of unit that voltage, amperage and
circuit protection requirements listed on unit data plate agree
with power supply provided.
On units with hinged panel option, check to be sure all latches
are snug and in closed position.
Locate the carton containing the outside air hood parts; see
Fig. 13 and 14. Do not remove carton until unit has been rigged
and located in final position.
Step 4 — Provide Unit Support

ROOF CURB MOUNT

Accessory roof curb details and dimensions are shown in
Fig. 4. Assemble and install accessory roof curb in accordance
with instructions shipped with the curb.
NOTE: The gasketing of the unit to the roof curb is critical for a
watertight seal. Install gasket supplied with the roof curb as shown
in Fig. 4. Improperly applied gasket can also result in air leaks and
poor unit performance.
Curb should be level. This is necessary for unit drain to func-
tion properly. Unit leveling tolerances are show in Fig. 5. Refer
to Accessory Roof Curb Installation Instructions for additional
information as required.
Table 2 — Operating Weights
COMPONENT
BASE UNIT
ECONOMIZER
Vertical
Horizontal
Powered Outlet
Humidi-MiZer System
CURB
14-in. (356 mm)
24-in. (610 mm)
8
48HC**14
UNITS LB (KG)
1430 (649)
103 (47)
242 (110)
35 (16)
90 (41)
180 (82)
255 (116)