Ground Source Heat Pump -Low Energy Comsumption -Refrigerant R134a, R407c -Low Noise,Scroll Compressor -CE Certificate LTWHM(R) Series Scroll Compressors Modular Type Ground Source Heat Pump/Water to Water Heat Pump FEATURES: 1. Heat resource: From groundwater, surface water (rivers, lakes, sea) and soil; 2. Usage: can be used for heating and cooling by radiant floor, radiator, fan coil units and ...