Carrier 13 50XP 사용자 설명서

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2
50XP
 
cooling unit that is pre-wired, pre-
piped, and pre-charged for minimum 
installation expense. 50XP units are 
available in a variety of standard 
cooling sizes with voltage options to 
meet residential and light commercial 
requirements. Units are light weight, 
and install easily on a rooftop or at 
ground-level. The hightech, composite 
base pan eliminates rust problems 
associated with ground level 
applications.
 
Durable, dependable 
components
 
Scroll Compressors
 
 are designed for 
high efficiency. Each compressor is 
hermetically sealed against 
contamination to help promote longer 
life and dependable operation. 
Vibration isolation provides quiet 
operation. Compressors have internal 
high-pressure and overcurrent 
protection.
 
Convertible duct configuration
 
 
 
Unit is designed for easy use in either 
downflow or horizontal applications. 
Each unit is easily converted from 
horizontal to downflow.
 
Direct-drive variable speed blower 
motor
 
 is standard on all 50XP models.
 
Direct-drive, PSC condenser-fan 
motors 
 
are designed to help reduce 
energy consumption and provide for 
cooling operation down to 55°F outdoor 
temperature. Motormaster® II low 
ambient kit is available as a field-
installed accessory.
 
Corporate thermostats
 
 include the 
Time Guard® II anti-short cycle 
protection circuitry. If a non-Corporate 
thermostat without anti-short cycle 
protection, is used the Time Guard II 
field installed anti-short cycle kit is 
recommended.
 
Refrigerant system 
 
is designed to 
provide dependability. Liquid refrigerant 
filter driers are used to promote clean, 
unrestricted operation. Each unit leaves 
the factory with a full Puron® refrigerant 
charge. Refrigerant service connections 
are standard on the suction and discharge 
lines for checking operating pressures.
 
Thermostatic Expansion Valve 
 
– A 
hard shutoff, balance port TXV 
maintains a constant superheat at the 
evaporator exit (cooling cycle) resulting 
in higher overall system efficiency.
 
Evaporator and condenser coils
 
 are 
computer-designed for optimum heat 
transfer and cooling efficiency. The 
evaporator coil is fabricated from 
copper tube and aluminum fins and is 
located inside the unit for protection 
against damage. The condenser coil is 
internally mounted on the top tier of the 
unit. Copper fin coils and pre-coated fin 
coils are available from the factory by 
special order. These coils are 
recommended in applications where 
aluminum fins are likely to be damaged 
due to corrosion. They are ideal for 
seacoast applications.
 
High and Low Pressure Switches
 
 give 
added safety and reliability to the 
compressor.
 
Low sound ratings 
 
ensure a quiet 
indoor and outdoor environment with 
sound ratings as low as 72 dB.
(See page 3.)
 
Easy to service cabinets
 
 provide easy 
single-panel accessibility to serviceable 
components during maintenance and 
installation. The basepan with 
integrated drain pan provides easy 
ground level installation with or without 
a mounting pad. Convenient handholds 
are provided to manipulate the unit on 
the jobsite. A nesting feature ensures a 
positive basepan to roof curb seal when 
the unit is roof mounted. A convenient 
3/4-in. wide perimeter flange makes 
frame mounting on a rooftop easy.
 
Louvered Grille
 
 provides hail and 
vandalism protection for the coil.
 
Downflow operation
 
 is easily provided 
in the field to allow vertical ductwork 
connections. The basepan utilizes 
knockout style seals on the bottom 
openings to ensure a positive seal in the 
horizontal airflow mode.
 
Cabinets 
 
are constructed of heavy-
duty, phosphated, zinc-coated 
prepainted steel capable of 
withstanding 500 hours of salt spray. 
Interior surfaces of the evaporator and 
electric heater compartments are 
insulated with cleanable semi-rigid 
insulation board, which keeps the 
conditioned air from being affected by 
the outdoor ambient temperature and 
provides improved indoor air quality. 
(Conforms to American Society of 
Heating, Refrigeration and Air 
Conditioning Engineers No. 62P.) The 
sloped drain pan minimizes standing 
water in the drain, which is provided 
with an external drain.
 
Standard metal duct covers
 
 with 
insulation come with the unit and cover 
the horizontal duct openings. These can 
be left in place if the unit is converted to 
downflow.
 
Table of contents
 
Page
Features/Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,2
Model Number Nomenclature  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
ARI Capacities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Physical Data  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,6
Base Unit Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,8
Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Selection Procedure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-15
Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18, 19
Typical Wiring Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20, 21
Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23, 24