Liquid Injection
The refrigerant suction gas cools the winding of the semi hermetic screw compressor motor. During part load operation where the suction gas circulation is less, as an abundant precaution, liquid refrigerant is injected to the suction side of the compressor to cool the motor winding temperature within limits. This is provided as a standard feature to enhance the life of the compressor.
Evaporator
The shell and tube evaporator has inner grooved copper tubes for better heat transfer. The tubes are designed to optimize for refrigerant and water velocities.
Control Centre
The control centre is mounted in the framework of the chiller. It is provided with an advanced microprocessor control panel which has unique features and advantages.
» The cooler outlet temperature can be controlled accurately within a close tolerace of ± 0.5oF
» In-built time delays for compressor single / phase reversal protection and anti freeze protection
» Password protection at two levels.
Following features are available in Air Cooled Version:
Economiser
Refrigerant liquid to liquid plate type heat exchanger is provided for the economizer system. The liquid refrigerant is sub cooled to enhance the capacity therby reducing power consumbtion (IKW/TR) and enhancing the Coefficient of performance (COP).
Oil Cooler
Effective lubrication of bearing depends on the viscosity of lubricant,which in turn depends on the oil temperature. To ensure effective lubrication for longevity, oil cooler is provided as a standard option.
Air Cooled Condenser
The air cooled condenser coils uses copper tubes and aluminimum fans. The inner grooved type copper tubes used in the condenser provide increased surface area for better heat transfer. Hydrophobic coated aluminium fins and condender coil protection guards are available as optional items. |