Uses electronic growth valve to exactly control the flow of R290 refrigerant into the evaporator as well as a four-way valve to divert the refrigerant move for your defrost Procedure One or more[nine] indoor condenser heat exchanger coils. They transfer the heat into the indoor air, or an indoor heating https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/