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

CURB-MOUNTED INSTALLATION
Install curb
Install field-fabricated ductwork inside curb
Install accessory thru-base service connection package (af-
fects curb and unit) (refer to accessory installation instructions
for details)
Prepare bottom condensate drain connection to suit planned
condensate line routing (refer to Step 11 for details)
Rig and place unit
Install outdoor air hood
Install condensate line trap and piping
Make electrical connections
Install other accessories
PAD-MOUNTED INSTALLATION
Prepare pad and unit supports
Check and tighten the bottom condensate drain connection
plug
Rig and place unit
Convert unit to side duct connection arrangement
Install field-fabricated ductwork at unit duct openings
Install outdoor air hood
Install condensate line trap and piping
Make electrical connections
Install other accessories
FRAME-MOUNTED INSTALLATION — Frame-mount-
ed applications generally follow the sequence for a curb instal-
lation. Adapt as required to suit specific installation plan.
Step 3 — Inspect Unit —
tion damage. File any claim with transportation agency.
Inspect unit for transporta-
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. 11 and 12. 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 accesso-
ry 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
function properly. Unit leveling tolerances are show in Fig. 5.
Refer to Accessory Roof Curb Installation Instructions for ad-
ditional information as required.
Table 1 — Operating Weights
COMPONENT
BASE UNIT
ECONOMIZER
Vertical
Horizontal
Powered Outlet
Humidi-MiZer System
CURB
14-in./356 mm
24-in./610 mm
7
48HC**14
UNITS LB (KG)
1430 (649)
103 (47)
242 (110)
35 (16)
90 (41)
180 (82)
255 (116)