48
PACKAGED TERMINAL
COOLING UNIT
WITH HEAT PUMP OR
ELECTRIC HEATING
HVAC Guide Specifications
Size Range:
Cooling:
6,900 to 14,500 Btuh
Heating:
6,000 to 13,400 Btuh Heat Pump
6,400 to 17,000 Btuh Electric
Carrier Model Numbers:
52PC Premier Series, Cooling Only
52PE Premier Series, Cooling with Electric
Heat
52PQ Premier Series, Heat Pump with
Electric Heat
52CE Comfort Series, Cooling with Electric
Heat
52CQ Comfort Series, Heat Pump with
Electric Heat
Part 1 — General
1.01 SYSTEM DESCRIPTION
Single piece, thru-the-wall electrically controlled unit
using hermetic rotary compressor for cooling and heat
pump or electric resistance heat, as shown on the con-
tract drawings.
1.02 QUALITY ASSURANCE
Unit shall be rated in accordance with ARI Standard
310/380-93 and certified by UL and UL, Canada.
1.03 DELIVERY, STORAGE, AND HANDLING
Unit shall be stored and handled per manufacturer’s
recommendations.
Part 2 — Products
2.01 EQUIPMENT
A. General:
Factory-assembled, single-piece heating and/or
cooling unit. Contained within the unit enclosure
shall be compressor, coils, fans and fan motor, heat-
ing means, controls, all wiring and piping, and a
full refrigerant charge (R-22).
B. Front Panel (supplied with unit):
Front panel shall be constructed of plastic material
with filters integrated and louvers in front surface.
C. Filters:
1. Two front access, interchangeable, washable,
permanent type that filter supply air.
2. One-piece washable type filter in vent door fil-
ters outdoor air.
D. Anti-Theft Control Knobs:
Control knobs shall be captured by the front panel
to prevent theft.
E. Bi-Directional Discharge Grille:
Discharge grille shall be easily adjustable and bi-
directional. In one direction, the air will discharge
40 degrees from horizontal. In the other direction,
the air will discharge 80 degrees from horizontal.
F.
Fans and Motor:
1. Evaporator (indoor) fan shall be a single-inlet
corrosion-resistant, reverse curve blower and
shall discharge air upwards. Fan shall be
dynamically balanced.
2. Condenser (outdoor) fan shall be a propeller
type with corrosion-resistant, plastic finish,
discharging air out the rear of the unit. Shall be
dynamically balanced with an integrated
slinger ring.
3. Motor shall be totally enclosed, permanently
lubricated, and multiple speed.
G. Condenser Coil Shroud:
The condenser coil shroud shall be two pieces,
secured by captured screws, to allow easy access to
service and maintain components in the condenser
section.
H. Snow Baffle:
The snow baffle shall be included to prevent snow
from melting on the fan motor and freezing on the
fan shaft.
I.
Compressor:
The compressor shall be fully hermetic with inter-
nal and external vibration isolation.
J.
Factory-Installed Electric Heater:
The factory-installed electric heater is standard in
heat/cool and heat pump units.
K. Coils:
The coils shall have aluminum plate fins mechani-
cally bonded to seamless copper tubes internally
enhanced (grooved) with all joints brazed.
L. Refrigerant Components:
All piping, compressor, and expansion devices shall
be included.
M. Controls and Safeties:
1. All standard models shall be equipped with
electro-mechanical controls and no electronics
for serviceability.
2. Controls shall consist of rotary selector switch
which provides OFF/FAN/HEAT/COOL oper-
ation, an adjustable thermostat with upper and
lower limits, VENT OPEN/CLOSE, and FAN
CYCLE switches. Additional controls for heat
pumps include outdoor coil defrost thermostat.
3. Safeties shall consist of automatic reset over-
temperature and overcurrent protection for
compressor, inherent, automatic reset over-
temperature protection for fan motor; two
overtemperature protectors for heater.
4. Standard controls for unit operation shall be a
mechanical rotary type switch, easily accessi-
ble and covered by a hinged door.
5. Wall thermostat units (RC and RP models)
shall come from the factory ready for wall
thermostat installation. No field-installed kits
shall be required, including a blank out plate
for the unit control knobs.
6. A continuous/fan cycle selector switch shall
allow the choice of continuous fan operation
for maximum comfort or cycle operation (fan
only runs with cooling or heating operation)
for maximum energy savings.
GUIDE SPECIFICATIONS
