AEC ACOA Series Air-Cooled Central Chillers - Manual (Page 9)

1-4 ACOA Physical Specifications
These air cooled units include semi-hermetic compressor(s), direct expansion internal finned
evaporator, copper tube/aluminum fin condenser coil with integral subcooling coil, and heavy
duty fan motors.
ACOA units are designed for operation down to -20ºF (-29ºC) ambient air temperature by
cycling condenser fans in response to refrigerant condensing pressure. Cylinder unloading, a fan
cycling switch, and heaters on the evaporator are standard.
All systems have pre-piped refrigeration circuits(s) and are pre-wired with a 115-volt control
transformer. Outside installation is possible with controls mounted in a weatherproof, galvanized
steel enclosure.
Page 8
ACOA Series Air-Cooled Central Chillers