Packaged water source heat pump (water to water) 4.5kw-75kw,LCD automatic controller,famous scrow compressor, energy saving. Water Source Heat PumpCooling Capacity 4.5kw-75.3kwHeating Capacity 4.9kw-84kw FEATUREFunction:Cooling and heating, also could supply hot water for domestic use as optionalRefrigerant:R407C, R410a, R290, R134a, R22Characters:Anti-freeze thermos Water Source Heat Pump use ...