Air cooled screw cold water (heat pump) unit

How it works:

Air cooled heat pump chiller refrigeration principle:The high temperature and high pressure refrigerant gas discharged from the compressor enters the condenser，By heat exchange with the cooling medium，Into the high pressure refrigerant liquid through the filter through the expansion valve throttling into the low temperature low pressure refrigerant liquid into the evaporator，By heat exchange with chilled water，Absorb the heat of the chilled water to become a low temperature and low pressure refrigerant gas suction compressor，Chilled water provides cooling capacity to the outside world as the heat release temperature decreases。

The heating principle of air-cooled heat pump type chiller:The high temperature and high pressure refrigerant gas discharged from the compressor enters the condenser，By heat exchange with chilled water，Into the high pressure refrigerant liquid through the filter through the expansion valve throttling into the low temperature low pressure refrigerant liquid into the evaporator，Absorb the heat of the air to become a low temperature and low pressure refrigerant gas suction compressor，Frozen water provides heat to the outside world due to the increase of the heat absorption temperature。

Unit features:

1.    Low temperature operation: 
It can operate reliably at a low temperature ambient temperature of -22 ° C, completing the problem of low temperature and energy efficiency ratio, and extending the application area of air source heat pump to North China and the Yellow River basin。

2.    Flexible layout: 
Unit adopts modular design, can be arranged on the roof, ground, platform and other open space, installation and use is very convenient;

3.    Convenient selection: 
○ The unit is equipped with standard unit modules for combination, convenient engineering design selection;

5.    High energy efficiency: 
The unit adopts modular design to ensure that the number of modules running the unit matches the actual air conditioning load, so that the unit is always in operation, saving energy and operating costs。