How much does a hotel air-energy water heater cost?

It costs about 5,000 yuan. The working process is as follows: the compressor compresses the returning low-pressure refrigerant and turns it into high-temperature and high-pressure gas and discharges it. The high-temperature and high-pressure refrigerant gas flows through the copper pipe wrapped around the outside of the water tank. The heat is conducted to the water tank through the copper tube. The cooled refrigerant becomes liquid under the continuous action of pressure. After passing through the expansion valve, it enters the evaporator. Since the pressure of the evaporator suddenly decreases, the liquid refrigerant quickly evaporates and turns into a gaseous state. , and absorb a lot of heat. At the same time, under the action of the fan, a large amount of air flows through the outer surface of the evaporator. The energy in the air is absorbed by the evaporator, and the air temperature drops rapidly and is released as cold air. Then the refrigerant, which has absorbed a certain amount of energy, returns to the compressor and enters the next cycle.