1, Mitsubishi Electric air conditioning refrigeration principle: liquid vaporization refrigeration is the use of liquid vaporization of heat absorption, exothermic effect of condensation to achieve refrigeration. Liquid vaporization to form steam. When the liquid (refrigerant) in a closed container, the container in addition to the liquid and the liquid itself produced by the steam, there is no other gas, liquid and steam will reach equilibrium at a certain pressure, this time the gas is called saturated steam, the pressure is called the saturation pressure, the temperature is called the saturation temperature.
2, Mitsubishi Electric air conditioning heating principle: compressor inhalation of low-pressure gas through the compressor compression into high-temperature and high-pressure gas, high-temperature gas through the heat exchanger to increase the temperature of the water, while the high-temperature gas will be condensed into liquid. Liquid into the evaporator for evaporation, (evaporator evaporation at the same time there should be heat transfer media, according to the heat transfer media of different machine models structure is different, commonly used air-cooled and ground source.) Liquid through the evaporator into a low-pressure low-temperature gas, low-temperature gas is again inhaled by the compressor for compression. This cycle continues, the air conditioning side of the circulating water becomes hot water of about 45-55 degrees. The hot water is piped to the room that needs to be heated, and the room is installed with a fan coil to heat exchange the hot water and air to achieve the purpose of heating.