Specifications

COMPU-AIRE, INC.
8167 Byron Road, Whittier, CA 90606
PH:[phone] FAX:[phone]
2
4.1 BLOWER MOTOR: The blower motor shall be Open Drip Proof, mounted on an adjustable base, provided with locking assembly to
prevent motor play. The motor shall be 1725 RPM and shall have copper windings, phase isolation and shall be UL component recognized.
5.0 SCROLL COMPRESSOR: The unit shall utilize hermetically sealed high efficiency compressor(s). It shall employ an internal device
to prevent reverse rotation upon shut down. In addition, the compressor shall be able to restart after a 5 second time delay without the
aid of start assist device. The compressor internally shall have pressure relief valve, current overload and thermal protection. Complete
with factory installed and wired crankcase heater.
6.0 REFRIGERANT SYSTEM: Each refrigerant circuit shall be provided with:
x Filter Dryer
x Sight glass
x Manually Reset High Pressure Switch
x Auto Reset Low Pressure Switch
x Schrader fittings for charging.
x Suction Accumulator
x Liquid Receiver
7.0 LOW AMBIENT CONTROL
7.1 LOW AMBIENT–HEAD PRESSURE CONTROL: The MAXI KOOL Unit shall be provided with LOW AMBIENT HEAD PRESSURE
CONTROL-Limitizer System for low ambient below -30
q
F. Head pressure control valve is factory supplied and installed on the air cooled
condenser. The head pressure control valve provides a condenser-flooding type of low ambient head pressure control.The liquid receiver shall
be heated and insulated.
Under normal summer ambient design condition, the liquid side of the valve remains fully open and the hot-gas side fully closed, thus offering no
interference with the design operation of the system. Under conditions of reduced loads and/or cold ambient temperatures, the liquid side valve
remains closed on start-up, causing the condenser to flood, thus reducing the effective condenser surface area. Flooding continues until the
condenser reaches the pressure of the valve setting. The gas side valve, meanwhile is open, allowing a portion of the hot discharge gas to flow
directly into the receiver, maintaining in the receiver the high side pressure required for proper valve operation and prevention of compressor
short-cycling. Once the desire pressure is reached in the condenser, the valve modulates to maintain adequate high-side pressure, regardless
of outside ambient temperature conditions.
8.0 CONTROLS:
8.1 POWER PANEL: All high voltage electrical control components shall be located in an easily accessible control box mounted on the
side of the unit. Terminal points shall be provided for field wiring & controls provided by others.
Each electrical component such as fan motor, compressor shall be individually protected with branch circuit fuses. The Control Panel
shall contain:
x Fuse-block with Fuses
x Transformers
x Circuit breakers for transformers
x Contactors
x Ground connection
x
Low voltage terminal block.
x Power Block