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3 Working Principles of the Unit
Schematic Diagram of Multi system series Inverter Heat Pump
Fig. 11
Schematic Diagram of Multi system Series Inverter Heat Pump
The outdoor and indoor units start to work once the power is switched on. During
the cooling operation, the low temperature, low pressure refrigerant gas from the heat
exchanger of each indoor unit gets together and then is taken into the compressor to be
compressed into high temperature, high pressure gas, which will soon go to the heat
exchanger of the outdoor unit to exchange heat with the outdoor air and then is turned
into refrigerant liquid. After passing through the throttling device, the temperature and
pressure of the refrigerant liquid will further decrease and then go the main valve. After
that, it will be divided and go to the heat exchanger of each indoor unit to exchange
heat with the air which needs to be conditioned. Consequently, the refrigerant liquid
become low temperature, low pressure refrigerant gas again. Such a refrigeration cycle
goes round and round to achieve the desired cooling purpose. During the heating
operation, the four-way valve is involved to make the refrigeration cycle run reversely.
