... partial heat recovery)Refrigerant:R407C, R410a, R290, R134a, R22Characters:Anti-freeze thermos Water Source Heat Pump use underground water or ... overload cut-out and crankcase heater, mounted on rubber vibration dampers.Mod. 10 and 12 are available with single ... factory,Source side water flow switch,Source side water pump,Anti-vibration rubber,Metallic filter for the water circuit.Energy savinghigh ...