Utilizes electronic enlargement valve to precisely Handle the flow of R290 refrigerant into your evaporator as well as a 4-way valve to divert the refrigerant stream for your defrost Procedure Using electrical energy, the pump compresses the liquid to enhance its temperature. It then condenses again right into a liquid https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/