KP-30 INDOOR UNIT

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The refrigerant system consists of 5 main components: DC inverter type compressor, water‐heat‐exchanger (refrigerant to water), 4‐way‐valve, air coil (condenser, refrigerant to air), electronic expansion valve, air coil (evaporator, air to refrigerant).


Heat pump can absorb the heating from air source. This makes the heat pump a very environmentally friendly and economically sound alternative for space heating.


  • Evaporator (air coil): low temperature, low pressure refrigerant goes through evaporator to boil and turn from liquid to gas.


  • Compressor: compressor absorb refrigerant in gas status, and compress to high temperature, high pressure status.


  • Water heat exchanger: refrigerant release heat energy to water. refrigerant temperature reduces, and it return from gas to liquid status.


  • Condenser (air coil): refrigerant release heat energy to air. refrigerant temperature reduces, and it return from gas to liquid status.


The heat energy is absorbed by water/air.


  • EEV: refrigerant go through the electronic expansion valve, where its pressure is reduced. Refrigerant system installs 1 high pressure switch (42bar), 1 low pressure switch (0.5bar).