Carrier 50PG16 series, Руководство по установке

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3
IMPORTANT
: The gasketing of the unit to the roof curb is critical
for a watertight seal. Install gasket with the roof curb as shown in
Fig. 1. Improperly applied gasket can also result in air leaks and
poor unit performance. Do not slide unit to position on roof curb.
Alternate Unit Support
When a curb cannot be used, install unit on a noncombustible
surface. Support unit with sleepers, using unit curb support area. If
sleepers cannot be used, support long sides of unit with a minimum
of 3 equally spaced 4-in. x 4-in. pads on each side.
Step 2 — Rig and Place Unit
Inspect unit for transportation damage. See Table 1 for physical
data. File any claim with transportation agency.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
All panels must be in place when rigging.
CAUTION
!
Do not drop unit; keep upright. Use spreader bars or top crating
over unit to prevent sling or cable damage. Rollers may be used to
move unit across a roof. Level by using unit rail as a reference;
leveling tolerance is
±
1
/
16
in. per linear ft in any direction. See Fig.
2 for additional information. Unit rigging weight is shown in Fig.
2.
Rigging holes are provided in the unit base rails as shown in Fig. 2.
Refer to rigging instructions on unit.
Positioning
Maintain clearance, per Fig. 3, around and above unit to provide
minimum distance from combustible materials, proper airflow, and
service access.
Do not install unit in an indoor location. Do not locate air inlets
near exhaust vents or other sources of contaminated air.
After unit is in position, remove top crating and polyethylene
sheet.
Roof Mount
Check building codes for weight distribution requirements. Unit
operating weight is shown in Table 1.
Installation Onto Curb
The 50PG units are designed to fit on the accessory full perimeter
curb. Correct placement of the unit onto the curb is critical to
operating performance. To aid in correct positioning, place unit on
roof curb to maintain
1
/
4
-in. gap between the inside of rail and roof
curb on long sides and a
1
/
2
-in. gap between the inside of rail and
roof curb on both duct and condenser ends. Refer to Fig. 1 and 3,
to assure proper duct opening alignment.
NOTE : Before positioning unit on curb make sure bottom drain
connection plug is tight. See Step 6 — Install External Trap for
Condensate Drain for details.
Hook rigging shackles through holes in base rail, as shown in
Detail A. Holes in base rails are centered around the unit
center of gravity. Use wooden top skid, when rigging, to
prevent rigging straps from damaging unit.
CAU O TI
ACCESS PANEL MUST BE IN PLACE WHEN RIGGING.
N - NOTICE TO R GGERS: I
UNIT
SIZE
A B C D E MAX. WEIGHT
in. mm in. mm in. mm in. mm in. mm lb kg
16 100.4 2550 36-54 914-1371 52.4 1331 51.0 1295 35.0 889 1959 890
C06253
Fig. 2 -- 50PG Rigging Label
50PG16