Employs Digital enlargement valve to precisely Regulate the flow of R290 refrigerant in to the evaporator as well as a four-way valve to divert the refrigerant move for the defrost operation A number of[9] indoor condenser heat exchanger coils. They transfer the heat to the indoor air, or an indoor https://bookmarkinginfo.com/story20426066/r290-air-source-heat-pump-an-overview