Air-source heat pump: Principle of cooling and heating in one machine

The structure of an air source heat pump is similar to that of a water system central air conditioner. The difference lies in that the air source heat pump can be connected to various terminals (floor heating, radiators, and fan coil units). The air source heat pump has two sets of heat exchange systems. In the heat pump main unit, heat is exchanged with the air through the refrigerant, and then heat is exchanged with water in the heat exchanger. Finally, water carries heat and cooling capacity to provide heating and cooling indoors.
When used in winter, the air source heat pump absorbs heat from the air through the heat pump main unit (not directly converted from electrical energy into thermal energy, so the energy consumption is relatively low). Then, the heat is transferred to the heat exchanger. Through the heat exchanger, the circulating water in the pipeline is heated to between 35°C and 60°C. Finally, the heat is released indoors through different heat dissipation terminals to achieve the purpose of heating.
When used in summer, the air source heat pump absorbs heat from the indoor through the heat pump unit and then releases the heat outdoors. During this process, after the heat pump main unit exchanges heat through the refrigerant, the cooling capacity is transferred to the heat exchanger. Through the heat exchanger, the circulating water in the pipeline is cooled to between 1°C and 10°C. Finally, the cooling capacity is carried to the indoor by the circulating water for release, thus achieving the purpose of cooling.
Air source heat pump cooling
When the air source heat pump is cooling, the air outlet temperature of the fan coil unit is between 15°C and 20°C. Compared with the air outlet temperature of a fluorine system central air conditioner, which is between 7°C and 12°C, the air outlet temperature of the air source heat pump's air conditioner has a lower temperature difference from the environment. The main unit is more energy-efficient and power-saving when working. The temperature stimulation felt by the human body is also relatively small, and there will be no piercing feeling. Moreover, under the condition of a low temperature difference, the indoor humidity change is also relatively small, and there will be no overly dry situation. It is precisely because the air source heat pump uses water circulation. Water has a large specific heat and has a lasting insulation effect on heat and cooling capacity. The indoor temperature can be more lasting and constant. Moreover, the temperature control of water is more accurate, and the indoor temperature is also more stable. Therefore, using an air source heat pump for cooling has relatively high comfort.
Air source heat pump heating
When the air source heat pump is heating, there are floor heating, fan coil units, and radiators available for selection indoors. When the water supply temperature is between 35°C and 45°C, floor heating can be used as the heating terminal. The floor heating coil is uniform, and heat is transferred from low to high. Therefore, the indoor temperature is relatively balanced. There is no dust, no noise, and it can also prevent rheumatoid arthritis. It coincides with the saying in traditional Chinese medicine that "warm feet and cool head". In addition, floor heating is currently recognized as the most comfortable heating method.
When the water supply temperature is between 40°C and 50°C, fan coil units can be used as the heating terminal. The air outlet temperature of the fan coil unit is around 32°C. Compared with the air outlet temperature of a fluorine system central air conditioner, which is between 40°C and 50°C, the air source heat pump can maintain a temperature difference within 10°C from the indoor set temperature. The body feels mild and comfortable. It can also prevent air conditioning diseases. At the same time, the energy consumption for cooling is also very low. When the water supply temperature is above 55°C, radiators can be used as the heating terminal. Radiators use convection and radiation for heat dissipation and can maintain an indoor temperature of 20°C. At the same time, they have the advantages of being turned on and off at any time and heating up quickly. They are suitable for office workers who leave early and return late.

Comfort and convenience coexist. In short, as a heating source for heating, the air source heat pump can provide multiple choices of heating terminals. It can not only meet the comfort of life but also meet the convenience of user use. At the same time, it can also exert the highest energy-saving performance.
The air source heat pump for heating has characteristics such as comfort, energy saving, environmental protection, safety, stability, long service life, and wide application range. At the same time, it also has the function of dual-purpose. It can be used as a cooling source for cooling in summer and as a heating source for heating in winter. Moreover, the comfort of both cooling and heating is quite high. It can meet users' needs for the comfort of home life. It is especially more common in the south and is therefore sought after by many users.