GENERAL
Provide Little Chill Cooler environmental control system. Unit to be self-contained, factory tested and charged. Unit
configuration shall be horizontal, designed for ceiling mounting tem shall be provided with ETL label.
UNIT CABINETS
Cabinet and chassis shall be constructed of heavy gauge galvanized steel and designed for easy installation and service
access. All service access to be through the sides of the unit without removing the unit from the ceiling. Cabinet shall
be insulated with 1-1/2 lb. density insulation providing thermal and acoustical treatment. Mounting kit shall include
vibration isolators.
AIR DISTRIBUTION SYSTEM
The air flow system shall include a direct drive double width, double inlet forward curved centrifugal fan arranged to
draw air through the evaporator. The blower motor shall be mounted on vibration isolators and shall have three speeds to
allow air flow to be adjusted to the specific requirements of the installation. The return/supply grille assembly shall
include three-way outlet grille and a hinged return grille for filter access. Filter shall be 1” disposable type.
REFRIGERATION SYSTEM
The refrigeration system shall be self contained, and include high-efficiency hermetic compressor designed for heat pump
duty with vibration isolation.
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The copper tube aluminum fin evaporator coil
shall be mounted in a stainless steel drain pan. The drain pan shall be equipped with single float switch to stop unit
operation in the event of a drain failure. The system shall include an externally equalized thermostatic expansion
valve, liquid line filter, dryer sight glass with moisture indicator, manual reset high pressure, automatic reset low
pressure switch and pressure fittings for charging, evacuation and service.
ELECTRICAL SYSTEM
The electrical box shall include all contactors, relays and transformers required for unit operation. The electrical box
shall be located to allow full service from the side of the unit.
AIR COOLED CONDENSER
(Air Cooled System Only) The condenser coil shall be copper tube aluminum fin and factory mounted, piped and charged.
The blower box assembly shall include a direct drive centrifugal fan for use with either plenum air or outside air via
ductwork.
CHILLED WATER SYSTEMS
Chilled water systems shall include a copper tube aluminum fin cooling coil. |
