Air Source Heat Pump Heat Transfer Fluid

Air source heat pump heat transfer fluid is a special substance, its boiling point is minus 40°C under normal pressure, and its freezing point is below minus 100°C. The substance is liquid when it is cold, but it is easily evaporated into gas, and vice versa. In actual operation, the evaporation limit temperature of the heat transfer medium in the air source heat pump is about minus 20°C, so the ambient temperature of 5°C is also "hot" for such a low temperature, even the temperature of snow, such as 0°C , is also hot in comparison, so some thermal energy can still be exchanged.