Analysis of performance test methods for water (ground)-source heat pump units

The performance test methods and test conditions of cold and hot water type units in GB/T 19409-2013 Water (ground) source heat pump unit are interpreted in detail, and the performance test methods of single-heat type cold and hot water units and non-standard large temperature difference cold and hot water units are analysed, so as to provide guidance for correctly understanding the standard terms and accurately detecting the performance of various working conditions of cold and hot water type water (ground)-source heat pump units.