Heat exchanger R410A/heating circuit water which may contain glycol for air to water heat pump 1. Fluids Frigorific fluid: R410A. Maximum condensing temperature = 55?C. Testing pressure = 50 bars. Heated fluid: heating circuit water (closed circuit). Maximum service pressure = 3 bars.  Cleared water should be considered in all calculations (not water containing glycol). The water can contain 5% to 50% propylene glycol. 2. Operating conditions ? Condenser Operating mode Inlet water temperature Outlet water temperature Condensing temperature Desuperheating Subcooling 1 30?C 35?C 38?C 10?C 7?C 2 40?C 45?C 48?C 10?C 7?C 3 45?C 50?C 53?C 10?C 7?C