... , also supply hot water for domestic use.Carel controller air source heat pump with heat recoveryModel: HRCF/RH seriesCooling ... 6kwRefrigerant: R407C,R410A,R290 Compared with traditional chillers, the air source heat pump with heat recovery can provide hot ... , liquid receiver and one way valve.HYDRONIC CIRCUITBuilt with air vent valve, water drain connection, and female-threaded hydraulic connectors ...