-25 air to water heat pumps,CE,EN14511 standard;High capacity and COP;Cooling and hot water function available;Dozens protect Air to water heat pump features:1.Has been tested and designed in accordance with Europeen standard EN14511.2. High efficiency. Able to work reliably and efficiently till minus 25 deg C. 3. Uses Copeland scroll compressor, Alco thermal expansion valve and 316 stainless ...