Continental USWC-30 Continental Single Phase Chillers, UniPac, General Description, Assembly

Continental Single Phase Chillers UniPac™

Standard Unit Specifications of UniPac™ Single Phase Chillers

General Description

Continental’s Single Phase Air and Water Cooled Chillers are packaged systems complete with scroll compressor(s), air cooled or water cooled condenser(s), individual cooler/evaporator(s), independent refrigerant circuit(s) and a control center all mounted on a heavy duty structural steel frame.

•Sight glass/ moisture indicator

•Suction line fully insulated, designed for proper oil return at minimum friction loss

•Discharge line formed of clean ACR type tubing and pre-formed radius fitting

Scroll Compressor(s)

Compressors are well proven state-of-the-art scrolls with fewer moving parts, less rotating mass, and less internal friction than traditional reciprocating compressors.

Motor is suction gas-cooled, hermetically sealed, two pole, squirrel cage induction type and is directly driven at 3600 rpm.

All compressor(s) are mounted on resilient pads to minimize vibration.

Air Cooled Condenser for Air Cooled Models

Condenser Coil-industrial quality, seamless copper tube Fins-all aluminum, die formed with full self–spacing collars that completely cover the copper tube; fins are mechanically bonded to the copper tubes

Propeller Fans-large surface, low speed, low sound level propeller fans for vertical airflow; fans are statically and dynamically balanced and operate at low tip speeds for low vibration and sound levels Fan Guards- PVC coated for long life

Fan Venturi- high collar fully spun venturi design for high efficiency and low outlet noise

Fan Motors-special “enclosed air over” motor design with built-in overload protection; single phase motors operate at a low speed of 1075 rpm

Water Cooled Condenser for Water Cooled Models

Each water cooled condenser is of shell/coil design. The condenser water flows through special heat transfer copper tube. Refrigerant flows through the steel shell and a built in receiver.

Cooler/Evaporator for All Models

Each cooler/evaporator is of shell/coil design. The water to be chilled flows through special heat transfer copper tube. Refrigerant flows through the steel shell/receiver.

Refrigerant Piping

Each Refrigerant circuit includes:

•Liquid line with charging connection

•Filter drier

•Liquid solenoid valve with 115 V coil (220 V or 24 V, optional)

Control Center

All power, starting, safety and operating controls are mounted in a built in fully enclosed, weather proof control panel for air cooled models and NEMA-1 enclosures for indoor water cooled or condenserless models.

Power controls include:

•Single point electrical terminal block for 230/1/60 power input

•Compressor-motor contactor(s)

•Compressor run capacitor(s)

•Fan motor contactor(s) (air cooled units only)

•Control circuit fuse

•Control circuit terminal block

Safety/Operating controls include:

•Two position switch indicating off/system on – per circuit

•High Pressure control with manual reset –per circuit

•Low pressure control with auto reset – per circuit

•Adjustable chilled water temperature controller

•Adjustable freezestat

•Adjustable compressor anti-recycle timer(s)

•Relay(s)

•Built-in compressor-motor overload

Testing, Evacuation and Refrigerant Charging

Each completed system is pressure tested with nitrogen, evacuated with a high capacity vacuum pump, vapor charged with R-22 and fully tested for all operating and safety controls. Field charge of R-22 required.

Split chiller systems are “dry run” tested for operating and safety controls.

Assembly

All above components are assembled on a heavy-duty structural steel frame, formed of channels and angles as a rugged pre-engineered package. Each steel frame has mounting holes and “lifting eyes” on four sides for “spreader bar” lifting and rigging.

The cabinet of air cooled units is made of heavy gauge galvanized steel.

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Phone: 317-337-9813	www.continentalchillers.com
Fax: 317-337-9816