The working principle of Ground source heating and cooling heat pump is: in winter, the heat pump unit absorbs heat from the ground source (shallow water body or rock and soil body) to heat the building; In summer, the Ground source heating and cooling heat pump unit absorbs heat from the room and transfers it to the ground source to achieve building air conditioning refrigeration. According to the different forms of the ground heat exchange system, the Ground source heating and cooling heat pump system is divided into groundwater ground source heat pump system, surface water ground source heat pump system and buried pipe ground source heat pump system.

Ground source Heating System is mainly divided into three parts: outdoor ground energy heat exchange system, ground source heat pump unit system and indoor heating and air conditioning terminal system. The heat transfer between the three systems is carried out by water heat exchange medium.