panel. (See Fig. 2) It contains information needed to properly
install unit. Check rating plate to be sure unit matches job
specifications.
Step 2—Install on a Solid, Level Mounting Pad
If conditions or local codes require the unit be attached to a pad,
tie down bolts should be used and fastened through knockouts
provided in unit base pan. Refer to unit mounting pattern shown in
Fig. 2 to determine base pan size and knockout hole location.
On rooftop applications, mount on level platform or frame. Place
unit above a load-bearing wall and isolate unit and tubing set from
structure. Arrange supporting members to adequately support unit
and minimize transmission of vibration to building. Consult local
codes governing rooftop applications.
Roof mounted units exposed to winds above 5 mph may require
wind baffles. Consult Low-Ambient Guideline for wind baffle
construction.
NOTE:
Unit must be level to within ±2° per compressor manu-
facturer specifications.
Step 3—Clearance Requirements
When installing, allow sufficient space for airflow, wiring, refrig-
erant piping, and service. Allow 30 in. (762mm) clearance to
service end of unit and 48 in. (1219mm) above unit. For proper
airflow, a 5 in. (152mm) clearance on 1 side of unit and 12 in.
(305mm) on all remaining sides must be maintained. Maintain a
distance of 24 in. (610mm) between units. Position so water, snow,
or ice from roof or eaves cannot fall directly on unit.
On rooftop applications, locate unit at least 6 in. (152mm) above
roof surface.
Step 4—Operating Ambients
The minimum outdoor operating ambient in cooling mode is 55°F
(12.8°C), and the maximum outdoor operating ambient in cooling
mode is 125°F (51.67°C).
Step 5—Replace Indoor AccuRater® Piston, if Required
Check indoor coil piston to see if it matches the required piston
shown on unit rating plate. If it does not match, replace indoor coil
piston with piston shipped with this unit. The piston shipped with
outdoor unit is correct for any approved indoor coil combination.
Remove indoor coil piston if unit is to be installed on system
with a thermostatic expansion valve (TXV) metering device.
Failure to follow this caution could cause performance
problems or product failure.
Step 6—Make Tubing Connections
Relieve pressure and recover all refrigerant before system
repair of final unit disposal to avoid personal injury or death.
Use all service ports and open all flow-control devices,
including solenoid valves.
Fig. 2—Unit Reference Drawing
UNIT SIZE
A
B
C
D
E
In.
mm
In.
mm
In.
mm
In.
mm
In.
mm
024
27-1/2
698.5
22
558.8
8-3/16
207.9
2-13/16
71.4
6-15/16
176.2
036, 048, 060
34-15/16
887.4
30
762.0
8-13/16
207.9
4
101.6
9-3/4
247.6
A92471
AIR DISCHARGE
3
/
8
IN.
DIA
LIQUID
LINE CONN
FIELD CONTROL
SUPPLY CONN
7
/
8
IN.
DIA HOLE
AIR DISCHARGE
AIR DISCHARGE
AIR IN
AIR IN
3/8"
DIA TIEDOWN KNOCKOUTS
(2) PLACES IN BASEPAN
C
L
UNIT RATING
PLATE
1. Allow 30
in.
(762 mm) clearance to service end of
unit, 48
in.
(1219 mm) above unit, 6
in.
(152 mm) on one side, 12
in.
(305 mm)
on remaining side, and 24
in.
(610 mm) between
units for proper airflow.
2. Minimum outdoor operating ambient in cooling mode is
55
°
F (12.8
°
C) (unless low ambient control is used) max 125
°
F (51.7
°
C).
5. Series designation is the 13th position of the unit model number.
6. Center of gravity
NOTES:
ACCESS
PANEL
FIELD POWER SUPPLY CONN
7
/
8
IN.
DIA HOLE WITH
1
1
/
8
IN.
DIA KNOCKOUT
AND
1
3
/
8
IN.
DIA KNOCKOUT
A
C
AIR IN
E
D
B
VAPOR LINE CONN
INDIANAPOLIS IN
46206
313948-401
REV A
MAX CKT-BKR
MAX HACR CKT-BKR
MAX FUSE
TYPE
MINIMUM CIRCUIT AMPS
LO
HI
DESIGN/TEST PRESSURE GAGE
FLA
HZ
PH
VOLTS AC
LRA
RLA
HZ
PH
VOLTS AC
MAX
PH
LBS
PISTON
MODEL
PROD
SERIAL
N/A
USA
N/A
CANADA
MAX OVERCURRENT PROTECTIVE DEVICE
kPa
kPa
PSI
PSI
FAN MOTOR
COMPRESSOR
SUITABLE FOR OUTDOOR USE
MIN
HZ
Kg
VOLTS
POWER SUPPLY
ID
OD
FACTORY CHARGED R-22
®
®
PERMISSIBLE VOLTAGE AT UNIT
CARRIER CORP
2
Содержание 38TUA
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