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How Does Air to Water Heat Pump Work

  • By:Heyi
  • Date:2021/11/20

A heat pump is an electrical device that draws heat from one place and passes it to another. Heat pump has been widely used in European and North America. Refrigerators and air conditioners are common examples of this energy transferring heat pump technology.

The heat pump works according to Carnot cycle system. Thisair source heating system need 4 essential components and 1 heat transferring carrier.

1. Heat transferring carrier : Refrigerant for example, R410a , R32 or R134a.  It can absorb the heat from the air, then it carry the heat to the other side which need the heat. During this period, refrigerant change itself status from gas to liquid.

2. Compressor : It is an electricity powered device. It can compress the refrigerant from gas to liquid. At the same time it also keeps the refrigerant flowing in copper tube system.

3. Evaporator: It contains some copper tubes to allow the refrigerant flowing inside. The refrigerant absorbs the heat in the air when it is evaporated in the evaporator, and stores the heat in the refrigerant and flows to the next part.

4. A condenser is a heat exchanger and also contains many tubes. Refrigerant flows in these tubes. When the high-temperature refrigerant is transformed into liquid status in the condenser, the heat carried by the refrigerant will be conducted to the nearby water through the tube. The working process of the condenser is an heat release process, so the condenser temperature is always higher.

5. Throttle valve is a device that adjusts refrigerant flow and pressure by abruptly reducing the cross section of the tube. The throttle is usually installed between the condenser and the evaporator. When the refrigerant liquid flows out from the condenser and passes through the throttle valve, the functions of throttle valve is to reduce the pressure and temperature of the refrigerant.

The compressor exchanges refrigerant between the evaporator and the condenser. After the refrigerant is compressed by the compressor, heat is released in the condenser, And condenser will transfer the heat to water around. Water temperature will be raised up in this heat release process.

According to above air to water heat pump working principle. Aircal heat pump have developed many products as below ranges:

1. Swimming full inverter pool heat pump. The hot water output highest is 40℃. Because when people swim, they will not need high temperature water.

2. DC Inverter heat pump (multifunction heat pump for house heating, cooling and domestic hot water). The hot water output upto 55℃, and by the help of auxiliary electrical heater, highest temperature can be 70℃. This product is designed for space heating and domestic hot water.

3. Domestic water heating heat pump : The hot water output can be upto 70℃. This product is designed for residential hot water. 70℃ high temperature is for sterilization mode. All in one and split type available.

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