GB 21519-2008: Translated English of Chinese Standard. GB21519-2008: Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Electrical Storage Water Heaters
https://www.chinesestandard.net, 2019 M08 3 - 16 pages
This Standard specifies the minimum allowable value of energy efficiency, evaluating value of energy conservation, grade of energy efficiency, test methods and inspection rules for the domestic and similar electrical storage water heater. This Standard is applicable to the electrical storage water heater.
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24h natural energy Adjust the thermostat ambient temperature anode rod average effluent temperature average temperature average water storage calculated closed electrical water container test points container with poor disconnecting double container test efficiency for electrical Electrical Appliances electrical storage water electrical water heater energy consumption coefficient Energy efficiency grade Evaluating values Formula GB/T grade of electrical Guangdong heater shall conform hot water output influent installed manufacturer’s instructions maximum 24h natural maximum effluent temperature meet the requirements Methods of 24h minimum allowable values natural energy consumption natural energy loss number of measurements number of test place 10 thermocouples poor heat transmissivity position of thermocouple reference value sewage outlet single container test storage water heater temperature for undraining test corner wall Test method Thermocouple Placement Position thermostat is power thermostat starts power undraining period value of 24h values of energy water output rate water storage temperature