China's heat pump water heater industry has developed rapidly in recent years, and its products have the characteristics of energy saving and environmental protection. However, with the rapid development of the industry, there are still some chaos. The quality of compressors selected by enterprises is uneven, and the reliability and service life of products are also different. In order to standardize the industry and promote the development of the industry, the fully enclosed motor compressor for household and similar heat pump water heater (hereinafter referred to as heat pump water heater compressor) drafted from November 2009 has entered the approval stage and will be released and implemented soon. The reporter learned that the implementation of the standard will play a benign guiding role in the selection of compressors for heat pump water heater enterprises. (refrigeration express)