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Heat pumps are used to transfer heat because less high-grade energy is required than is released as heat. Most of the energy for heating comes from the external environment, only a fraction of which comes from electricity (or some other high-grade energy source required to run a compressor). In electrically-powered heat pumps, the heat transferred can be three or four times larger than the electrical power consumed, giving the system a coefficient of performance (COP) of 3 or 4, as opposed to a COP of 1 for a conventional electrical resistance heater, in which all heat is produced from input electrical energy.
Heat pumps use a refrigerant as an intermediate fluid to absorb heat where it vaporizes, in the evaporator, and then to release heat where the refrigerant condenses, in the condenser. The refrigerant flows through insulated pipes between the evaporator and the condenser, allowing for efficient thermal energy transfer at relatively long distances.
The series as below: 1.Air Source Heat Pump. Cooling capacity: 20kW-50kW, with world famous brand COPELAND/DANFOSS scroll compressor. 2.Water Source Heat Pump. Cooling capacity: 10kW-130kW. With world famous brand COPELAND/DANFOSS scroll compressor. 3.Geothermal Heat Pump Cooling capacity:130kW-2500kW. With world famous brand BITZER screw compressor. 4.Low Ambient Temperature Air Source Heat Pump Cooling capacity:10kW-20kW, With world famous brand COPELAND/DANFOSS scroll compressor. 5.Water To Air Heat Pump Cooling capacity 2.5kW-45kW. With world famous brand COPELAND/DANFOSS scroll compressor or PANASONIC/HILY rotary compressor. 6.Water Loop Heat Pump Cooling capacity 2.5kW-45kW. With world famous brand COPELAND/DANFOSS scroll compressor or PANASONIC/HILY rotary compressor.