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See Chinese contents: GB/T 21362-2008 GB/T 21362-2008: Heat pump water heater for commercial and industrial and similar application
This Standard specifies the terms and definitions, types and basic parameters, requirements, test methods, inspection rules, marking, packaging, storage and transportation of heat pump water heater for commercial and industrial and similar application. This Standard is applicable to the motor-driven air-source and water-source heat pump water heaters for hot water supply, with vapor compression refrigeration cycle, and a nominal heating capacity of 3,000W or more. For the heat pump water heaters for other purposes, it can also be used for reference.
