Air to water heaters, heat pump water heaters, also known as also known as air-source water heater? Is a "heat transport" means refrigeration principle to absorb heat from the air to heat the water. To a boiling point of minus 10 ℃ refrigerant passed to the switch, the refrigerant is evaporated from liquid into gas by absorbing heat from the air. Then work through the compressor pressure, temperature of the refrigerant can shoot up to 80-120 ℃. Then, high-temperature high-pressure refrigerant is passed into the tank of water in the capillary exothermic Shanxi air heater, and finally into a low-temperature low-pressure liquid refrigerant passes through the antihypertensive effect of the throttle device, the air will be able to re- absorb heat. This completes a "heating - heat" workflow. In the outdoor temperature is -30 ℃, 60 ℃ condensation temperature conditions, the use of specially designed for cryogenic refrigeration compressor single stage heat pump system can still be stable operation. This compressor mainly R507, R404 as the working fluid in Taiyuan air source heat pump, can make a stable running large compression ratio, will not shut down due to overheating. However, compared to other cryogenic pump system, its COP is relatively low. Meanwhile, since the compressor is designed for low vapor pressure design conditions, the outdoor air temperature at higher performance decrease. As the outdoor temperature rises air-source heat pump system is a gradual increase in heat capacity, but the indoor heating heat load is reduced, which makes the heat pump system is running a short time, thereby reducing the efficiency of the system. Single-stage low-temperature heat pump systems can be integrated inverter technology, parallel compressor or replace the compressor mode, heat storage system, but it will increase investment in single-stage system, which lost its biggest advantage - low installation costs. Shanxi pool air source heat pump, a hundred Spirit through (certified), Yuci air source heat pump is provided by the Taiyuan hundred Refrigeration Equipment Co. Spirit through. Taiyuan hundred Spirit through Refrigeration Equipment Co., Ltd. (www.sxkqn.com) is Taiyuan, a leader in environmental protection projects of cooperation over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In one hundred Spirit through leadership with the staff warmly welcome all inquiries negotiations to create one hundred flourishing through a better future.