总说明
　　General Information
　　为了正确安全地使用本热水器，需要正确安装水管、接头和阀门。请注意下列事项：
　　Water piping, fittings, and valves must be properly installed for the correct and safe operation of this water heater. Please note the following:

　　不要将用铁管安装热水器。这个系统应该限于采用符合饮用（可以饮用的）水标准的崭新的管道，例如铜管，CPVC，或聚丁烯管。不要采用PVC水管。
　　DO NOT install this water heater with iron piping. The system should be installed only with new piping that is suitable for potable (drinkable) water such as copper, CPVC, or polybutylene. DO NOT use PVC water piping.

　　不要采用任何不符合饮用水要求的任何泵、阀门或连接件。
　　DO NOT use any pumps, valves, or fittings that are not compatible with potable water.

　　不要采用可能对水流造成过大障碍的阀门。只选用全通道球阀或闸阀。
　　DO NOT use valves that may cause excessive restriction to water flow. Use full flow ball or gate valves only.

　　在饮用水管道上不要采用50/50铅焊料（或任何铅基焊料）。请采用95/5锡-锑或其他等同材料。
　　DO NOT use 50/50 tin-lead solder (or any lead based solder) in potable water lines. Use 95/5 tin-antimony or other equivalent material.

　　不要篡改温控器，加热元件，电气连接，或降温减压安全阀。篡改任何部件都是危险的，并可能导致财产损失甚至严重的人身伤害。这种篡改行为将导致所有质量保证条款失效。只有拥有技术资格证书的技术人员才能够维修这些部件。
　　DO NOT tamper with the thermostat, heating element, electrical connections or temperature and pressure relief valve. Tampering with any of the components is DANGEROUS and result in property damage, severe injury or death. Tampering voids all warranties. Only qualified technicians should service these components.

　　不要采用经过铬酸盐、锅炉密封或其他化学物处理的管道。
　　DO NOT use with piping that has been treated with chromates, boiler seal, or other chemicals.

　　不要在管道系统中添加任何可能会造成饮用水污染的任何化学物品。
　　DO NOT add any chemicals to the system piping which will contaminate the potable water supply.

　　不要在接到热水器的冷水供应管道中安装止回阀或防止回流装置。（请参阅“封闭系统/热膨胀”页）
　　DO NOT install check valves or backflow prevention devices in the cold water supply line to the water heater. (See Closed System / Thermal Expansion, page )

　　在一个封闭的水供应系统中，热膨胀可能导致降温减压安全阀的周期性排泄。自来水公司的供水水表可能包含一个止回阀，防倒流装置，或水减压阀。这将产生一个封闭的水系统。在热水器加热期间，水的膨胀会导致热水器内部压力增加。这可能导致降温减压安全阀排泄少量的热水。为了防止这种现象发生，可以考虑下列两条建议：
　　Periodic discharge of the temperature and pressure relief valve may be due to thermal expansion in a closed water supply system. The water utility supply meter may contain a check valve, backflow preventer, or water pressure reducing valve. This will create a closed water system. During the heating cycle of the water heater, the water expands causing pressure inside the water heater to increase. This may cause the temperature and pressure relief valve to discharge small quantities of hot water. To prevent this from happening, there are two recommendations:

1. 在冷水供应管道上安装一个适用于饮用水的隔膜型膨胀罐。这种膨胀罐必须具有50加仑贮存水最小1.5加仑膨胀能力。
   Install a diaphragm-type expansion tank that is suitable for potable water on the cold water supply line. The expansion tank must have a minimum capacity of 1.5 U.S. gallons for every 50 gallons of stored water.
2. 在冷水供应管道上安装一个125 PSI的减压安全阀。要确保阀门排泄的水直接排放到一个畅通的排水口，并保证不会冻结。请与当地水供应商或管道检查人员联系，了解如何控制这种情况。不要把降温减压安全阀塞住。
   Install a 125 PSI pressure relief valve in the cold water supply line. Make sure the discharge of this valve is directed to an open drain and protected from freezing. Contact the local water supplier or plumbing inspector for information on how to control this situation. Do not plug the temperature and pressure relief valve.

爆炸危险 Explosion Hazard 　　如果降温减压安全阀出现滴水或泄漏现象，需要请有资格认证的管道工来维修。 　　不要塞住阀门。 　　不要拆卸掉阀门。 　　 不遵守这些说明可能会导致死亡或爆炸。 　　If the temperature and pressure relief valve is dripping or leaking, have a licensed plumber repair it. 　　Do not plug valve. 　　Do not remove valve. 　　Failure to follow these instructions can result in death or explosion.

　　为了防止压力或水温过高，必须在标注“T&P RELIEF VALVE”的开口处安装一个降温减压安全阀（参阅图9）。
　　For protection against excessive pressures and temperatures, a temperature and pressure relief valve must be installed in the opening marked “T & P RELIEF VALVE”.

　　这种阀门必须经美国国家批准的测试实验室认证的降温减压安全阀，并保持定期检查所列的设备或材料的产品，是否符合美国国家标准化组织ANSI Z21.22《热水供应系统的安全阀和自动关闭装置》的有关要求规定。降温减压安全阀的作用是当温度过高压力过大时通过排泄大量的水来降低热水器的温度和压力。这种阀门必须不能超过参数板上标注的热水器工作压力
　　This valve must be design certified by a nationally recognized testing laboratory that maintains periodic inspection of the production of listed equipment or materials, as meeting the requirements for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22. The function of the pressure and temperature relief valve is to discharge water in large quantities in the event that excessive temperature or pressure develops in the water heater. The valve must not exceed the working pressure of the water heater as stated on the data plate.

　　降温减压安全阀：
　　The Temperature and Pressure Relief Valve:

• 不要接触任何其他电器部件。
  Must not be in contact with any other electrical part.
• 必须连接到适当的排水管道。
  Must be connected to an adequate discharge line.
• 不能超过参数板上显示的工作压力。
  Must not exceed the working pressure shown on
  the data plate.

　　排水管道：
　　The Discharge Line:

• 不能小于安全阀通径。
  Must not be smaller than the pipe size of the relief
  valve.
• 在减压阀和排水管道之间不能加盖、封闭、堵塞或安装任何阀门。
  Must not be capped, blocked, plugged, or contain
  any valve between the relief valve and the end of
  the discharge line.
• 必须将排水管接到距地面排水口或外部建筑物地面152mm高度的地方
  Must terminate 6 inches above a floor drain or
  external to the building within 6 inches to the ground.
• 必须能够经受121^oC的高温而不会变形。
  Must be capable of withstanding 250°F temperatures without distortion.
• 必须正确安装，使得降温减压安全阀和排水管道都能够完全排泄。
  Must be installed to allow complete drainage of both
  the temperature and pressure relief valve and the
  discharge line.