UL 1453 BULLETIN-2008《电动增压器和商业贮水式水加热器UL安全性标准.评议提交截止日期:2008年5月1日》

1.1 These requirements cover electric booster water heaters, electric commercial storage tank water heaters, and remote control assemblies for such heaters, rated 600 volts or less, to be employed in ordinary locations in accordance with the National Electrical Code, NFPA 70, and that meet at least one of the following conditions: a) Over 120 gallons (454 L) in capacity; b) Rated over 12 kilowatts; or c) Equipped with one or more temperature-regulating controls that permit a water temperature of more than 85鳦 (185鳩). 1.2 These heaters are intended for installation in accordance with model mechanical and plumbing codes. 1.3 An electric water heater not exceeding 120 gallons (454 L) capacity, rated no more than 12 kilowatts, and equipped with a temperature-regulating thermostat having no marked dial setting more than 77鳦 (171鳩) and provided with a stop to prevent adjustment to a higher setting, shall be judged in accordance with the requirements in the Standard for Household Electric Sto