The 52S model is a single-package, through-the-wall unit for heating and cooling hotel rooms, offices, apartments, condominiums, and residential additions. The 52S Series features include:
o Quiet operation
o Exceptional energy efficiency ratios (EERs)
o Multi-room structure design
o Fixed wall sleeve, slide-out chassis
o Attractive, durable cabinet
o Chassis that retrofits to most major competitors' sleeves
o Low operating costs
o No bulky duct system
o No seasonal changeover
Occupants and neighbors are protected against noise intrusion. Indoor sound reduction is achieved because of the unit's design and its louvered front cover, split scroll and blower, and heavy gage unit partition. Rotary compressors provide quiet, reliable operation. The split scroll provides a more uniform air discharge.
The new aerodynamic condenser shroud design improves airflow and reduces outdoor noise, providing a more relaxing outdoor environment. The propeller-type fan and stator design allow efficient low-speed operation.
The factory-wired control box houses all control components and is quickly accessible without removing the chassis from the wall sleeve. Remove two screws and the hinged door lowers, providing quick access to all the components and the wiring diagram.
Temperature Limiter
The limiter reduces operating costs by allowing the owner to control the range of cooling and heating temperatures available to the occupant. It is located under the control panel, out of the occupant's sight. Each setback on the limiter is equivalent to 5° F and the range of temperature settings available to the owner is from 60 to 90 F. The limiter is not pre-set at the factory.
The occupant's temperature control knob is conveniently located on the control panel and is clearly marked with a range of dial settings.
Outdoor Air Vent Control
The vent knob is located under the front panel. This knob slides to manually open and close the outdoor vent.
Fan Cycle Switch
This switch (not available on RC models) allows the fan to operate in 2 modes:
¿ Continuous - This setting allows the fan to run continuously, circulating air even when the temperature setting has been satisfied. This setting, which helps to keep the room temperature closer to the thermostat setting, is used for maximum comfort.
¿ Cycle - This setting allows the fan to cycle on and off with the compressor during heating or cooling. The fan stops when the temperature setting is reached. The longer unit off-time makes this option more energy-efficient with only slightly wider variations in room temperature.
Enhanced copper tubing is more efficient and durable and can be repaired in the field, if required.
Because copper is a very stable metal, it is durable and resists corrosion. Enhanced copper tubing increases:
o heat transfer capability
o the efficiency of the cooling and heating processes
o thermal conductivity (by creating additional tube surface and turbulent refrigerant gas flow)
Every Carrier PTAC coil undergoes thorough leak testing and pressure testing up to 350 Ibs per square inch.
Seamless drawn basepan walls add protection against water accumulation resulting from storm-driven rain with heavy wind.
Carrier's deep basepan holds up to two gallons of water without spilling. Closed cell foam insulators are located between the basepan and coils, keeping coils from direct contact with standing condensate and the basepan.
Carrier's 52S Series units have a slinger ring around the outside of the outdoor fan propeller. Condensate (water) in the unit basepan is picked up by the slinger ring and dispersed onto the hot outdoor condenser coil. The heat from the coil evaporates the condensate and cools the coil at the same time, thereby removing condensate and increasing the unit's efficiency.
NOTE: If it is necessary to remove 100% of the condensate, we recommend using the Carrier Drain Kit (Part No.: DRAIN-KIT 4PK).
