Recently, Shanghai Haili Feng Shangying Environmental Air Conditioning Equipment Co., Ltd. set ground source heat pump equipment manufacturing, sales, system design, integration and installation and integration of products in intelligent control, energy efficient, healthy and comfortable, ultra-low noise and maintenance Easy to install and so has the unparalleled advantages of the general air conditioning can be widely used in residential, office buildings and other real estate projects as well as hospitals, schools, hotels and other public buildings. Ground source heat pump air conditioning technology uses soil and groundwater as a low-temperature heat source, exchanges heat through the closed-loop pipeline system of deep soil, releases heat to the ground in summer, absorbs heat from the ground in winter, and achieves the requirements of cooling or heating. The technology utilizes clean, renewable, geothermal resources stored on the surface of the earth's surface; it is energy-efficient and efficient, saving more than two-thirds of electric energy from electric boiler heating and up to a half more than a fuel boiler when providing 100 units of energy Energy, more than 40% energy efficiency than the traditional air-source heat pump; it delivers uniform air, reasonable temperature distribution, low noise, good comfort; it does not have cooling towers and other outdoor equipment, saving construction space, and easy to hierarchical partition Control and metering; the system is running without pollution, do not need the other side of the fuel waste sites, do not have long-distance transmission of heat; 20 years of service life and greatly reduce maintenance costs and depreciation charges; it has a wide range of applications, refrigeration, heating and Provide hot water, cold and hot areas are applicable. Hailifeng independent research and development of external integrated secondary condensation multi-function single screw high temperature ground source heat pump unit has reached advanced international advanced level.