1) the terminal equipment is installed as low as possible to make it more energy-saving, and the terminal equipment adopts broad air-conditioning terminal, which integrates temperature sensor, electric valve, Fan Coil, automatic exhaust valve and stainless steel hose electrostatic precipitator, so as to make its maintenance more convenient and economical. 2) use non electric air conditioning, compared to electric air conditioning primary energy efficiency can reach 112% , and good security, installation location constraints less. 3) non-electric air conditioning uses water as refrigerant and Lithium Bromide (lithium bromide is a non-toxic salt solution) as absorbent, which is harmless to the environment. With gas, oil as fuel can also be used waste heat, waste heat. 4) the non-electric air conditioner can make both cooling and heating, and it also brings hot water with it, which can realize the three functions of one machine and greatly reduce the additional consumption. 5) the non-electric air conditioner uses less electricity, does not need power transformation equipment, and the whole system occupies a smaller area than other equipment.