Employs electronic expansion valve to precisely Handle the movement of R290 refrigerant to the evaporator as well as a 4-way valve to divert the refrigerant circulation for the defrost operation Making use of energy, the pump compresses the liquid to improve its temperature. It then condenses again right into a https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/