GUIDE SPECIFICATIONS
PACKAGED TERMINAL COOLING UNIT WITH HEAT PUMP OR ELECTRIC HEATING
HVAC Guide Specifications
Size Range: Cooling: 7,100 to 13,700 Btuh
Heating: 6,100 to 11,000 Btuh Heat Pump
6,400 to 17,000 Btuh Electric
Carrier Model Numbers: 52SC Cooling Only
Unit
52SE Unit with Electric Heat
52SQ Heat Pump
A. General:
Factory-assembled, single-piece heating and/or cooling unit. Contained within the unit enclosure shall be compressor, coils, fans and fan motor, heating means, controls, all wiring and piping, and a full refrigerant charge (R-22).
B. Front Panel (supplied with unit) and Wall Sleeve:
Wall sleeve and front panel shall be of plastic material. Front panel to have louvers in front surface.
C. Fans and Motor:
Evaporator (indoor) fan shall be a single-inlet squirrel cage blower with a corrosion-resistant finish, discharging air upwards. Fan shall be dynamically balanced.
Condenser (outdoor) fan shall be a propeller type with corrosion-resistant finish, discharging air out the rear of the unit, and shall be dynamically balanced.
Motor shall be totally enclosed, permanently lubricated, and multiple speed.
D. Compressor:
The compressor shall be fully hermetic with internal and external vibration isolation.
E. Coils:
The coils shall have aluminum plate fins mechanically bonded to seamless copper tubes internally enhanced (grooved) with all joints brazed.
F. Refrigerant Components:
All piping, compressor, and expansion devices shall be included.
G. Controls and Safeties:
Controls shall consist of pushbutton OFF/FAN/HEAT/COOL adjustable thermostat with upper and lower limits, VENT OPEN/CLOSE, and FAN CYCLE switches. Additional controls for heat pumps include outdoor coil defrost thermostat.
Safeties shall consist of automatic reset over temperature and overcurrent protection for compressor, inherent, automatic reset over-temperature protection for fan motor; two over-temperature protectors for heater.
H. Operating Characteristics:
Unit shall be capable of starting and running at 115 F ambient outdoor temperature per maximum load criteria of ARI Standard 310. Compressor with standard controls shall be capable of operation down to 25 F ambient outdoor temperature for heat pump and 55 F ambient outdoor temperature for cooling.
I. Electrical Requirements:
230/208-Volt: Shall be pre-wired with one plug to use with appropriate wall receptacle as specified on unit nameplate.
265-Volt: Shall be hard-wired or cord-connected through subbase.
J. Filter:
One-piece washable type that filters supply air.
One-piece washable type filter in vent door filters outdoor air.
K. Special Features:
Certain standard features are not applicable when the features designated are specified. Contact your local Carrier Sales Office for amending specifications.
Factory-installed electric heater for use with heat pump or heat/cool unit RC - Remote control permits unit control from remote thermostat
CP - Corrosion protection provides for extra paint on control box, partition top cover and exterior coil
Standard grille (aluminum)
Architectural grille (plastic or aluminum)
Hard-wire kit
Drain kit
Subbase
Wall sleeve
Lateral duct kit
Energy management accessory kit
Cord-connection kit (265 V)
