-40℃ ultra-low temperature variable frequency cascade heat pump unit

• The most advanced cascade system is adopted, which is not affected by the external environment and temperature. Even in ultra-low temperature conditions, the dual system and two refrigerants operate simultaneously, which can easily achieve high temperature hot water at 75°C and meet the needs of any radiator. Lower noise -40℃ ultra-low temperature operation, using a cascade system, precise temperature control, and supplemented by two different low-temperature environmentally friendly refrigerants, significantly improving the heating capacity under ultra-low temperature conditions, and COP up to 2 in an ultra-low environment of -25℃. .Efficient energy saving, intelligent antifreeze Easy to install: built-in various protective parts, easy to install, easy to use Suitable for areas where the temperature in the north is around -40℃