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See Chinese contents: GB/T 23137-2020 GB/T 23137-2020: Heat pump water heater for household and similar application
This Standard specifies the terms and definitions, product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of heat pump water heater for household and similar application (hereinafter referred to as heat pump water heater). This Standard is applicable to heat pump water heater for household and similar application driven by electric motors, using vapor compression refrigeration cycle, and air or water as the heat source, and for the purpose of providing hot water. Heat pump water heaters with other heat sources or purposes may take this as a reference. This Standard does not apply to industrial heat pump water heaters.
