Heating and cooling heat pump is a device that transfers thermal energy from a low temperature heat source to a high temperature heat source. for cooling and heating. The low-temperature heat sources usually used in heat pump installations are the media around us - air, river water, sea water, urban sewage, surface water, groundwater, reclaimed water, fire pools, or the working fluid discharged from industrial production equipment, these working fluids Often has a similar temperature to the surrounding medium.