30 XW Water Cooled Liquid Chiller
The 30XW liquid chillers are the premium solution for industrial and commercial applications where installers, consultants and building owners require optimal performances and maximum quality.
The 30XW liquid chillers are designed to meet current and future requirements in terms of energy efficiency and operating sound levels. They are manufactured with the best technologies available today to create the best values and benefits for the customers.
Premium full load and part load performance
New twin-rotor screw compressor specically designed for HFC-134a equipped with a high-efciency motor and a variable capacity valve that permits exact matching of the cooling capacity to the load.
Flooded multi-pipe evaporator and condenser for increased heat exchange efciency. The evaporator has a low pressure drop-which results in reduced cost of water pump.
Electronic expansion device permitting operation at a lower condensing pressure and improved utilization of the evaporator heat exchange surface (superheat control).
Economizer system with electronic expansion device for increased cooling capacity (30XW-P).
Absolute Reliability
Screw Compressor
- Industrial-type screw compressors with oversized bearings and motor cooled by suction gas.
- All compressor components are easily accessible on site minimizing down-time.
- Protection increased by an electronic board.
Refrigerant Circuit
- Two independent refrigerant circuits (from 800 kW upwards); the second one au- tomatically takes over, if the rst one develops a fault, maintaining partial cooling under all circumstances.
Evaporator
- Electronic paddle-free flow switch. Auto-setting according to cooler size and uid type.
Auto-adaptive control
- Control algorithm prevents exces- sive compressor cycling (Carrier patent).
- Automatic compressor unloading in case of abnormally high condensing pressure.
Exceptional endurance tests
- Partnerships with specialized laboratories and use of limit simulation tools (nite element calculation) for the design of critical components.
- Transport simulation test in the laboratory on a vibrating table and then on an endurance circuit.
