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 ... room,Applicable to hotels, villas, hospitals, cinemas, stadiums, recreations, office blocks, factories and so on. Packaged water source heat pump (water to water) 4.5kw ...