美国人家用电热水器 安装说明书和使用及维护指南(8)

重要提示：您的热水器只能采用崭新的降温减压安全阀。不要采用旧的或原有的阀门，否则可能会损坏或不符合新热水器的工作压力。不要在安全阀和热水器之间安装任何阀门。
　　Important: Only a new temperature and pressure relief valve should be used with your water heater. Do not use an old or existing valve as it may be damaged or not adequate for the working pressure of the new water heater. Do not place any valve between the relief valve and the tank.

降温减压安全阀
The Temperature & Pressure Relief Valve

必须与适当的排泄管道连接。
Must be connected to an adequate discharge line.

• 不能接触任何电气部件。
  Must not be in contact with any electrical part.

• 额定压力不能高于热水器参数板上显示的工作压力。
  Must not be rated higher than the working pressure shown on the data plate of the water heater.

排泄管
The Discharge Line

不能小于安全阀的管道口径，也不能在排泄管上安装任何缩径管接头。
Must not be smaller than the pipe size of the relief valve or have any reducing coupling installed in the discharge line.

• 在安全阀和排泄管之间不要加盖、闭塞、堵塞或包含任何阀门。
  Must not be capped, blocked, plugged, or contain any valve between the relief valve and the end of the discharge line.

• 其终端离地面排水口或建筑物外部高度不能超过6英寸。
  Must terminate a maximum of 6 inches above a floor drain or external to the building.

• 必须能够承受121°C的高温而功能仍然正常。
  Must be capable of withstanding 250°F (121°C) without distortion.

• 必须安装到具有完全排泄能力的阀门和排泄管上。
  Must be installed to allow complete drainage of both the valve and discharge line.

太阳能装置
Solar Installation

　　如果本热水器被用作为太阳能贮存热水器，或作为太阳能系统的备用热水器，那么输入热水器的水温可能会超过49oC。因此要在供水管道上安装调节阀（混水阀）或其他温度限制阀门，使得供水温度不会超过49oC。
　　If this water heater is used as a solar storage heater or as a backup for the solar system, the water supply temperatures to the water heater tank may be in excess of 120°F. A tempering valve or other temperature limiting valve must be installed in the water supply line to limit the supply temperature to 120°F.

　　注：太阳能水加热系统产生的热水温度经常会超过82oC，这将导致热水器发生故障。
　　Note: Solar water heating systems can often supply water with temperatures exceeding 180°F and may result in water heater malfunction.

安装清单
Installation Checklist

热水器位置
Water Heater Location

放置在水管道系统的中心位置。
Centrally located with the water piping system.

• 垂直直立放置在室内。
  Located indoors and in a vertical position.

• 避免受到冰冻温度的影响。
  Protected from freezing temperatures.

• 采取适当措施，保护所在区域免受水的破坏。
  Provisions made to protect the area from water damage.

• 安装排水盆，并用管道引导到适当的排水口。
  Drain pan installed and piped into an adequate drain.

• 留足充足的的空间，方便热水器的维修。
  Sufficient clearance to service the water heater.

水系统管道
Water System Piping

正确安装降温减压安全阀，并配置排泄管引导至一个敞开的排水口，并确保不会被冻结。
Temperature and pressure relief valve properly installed with a discharge line plumbed to an open drain and protected from freezing.

• 所有管道都必须正确安装，并没有泄漏。
  All piping properly installed and free of leaks.

• 热水器完全注满水。
  Water heater completely filled with water.

• 关闭已安装的系统压力累计预防装置。
  Closed system pressure buildup precautions installed.

• 按照制造商的说明安装调节阀（混水阀）。
  Tempering valve installed per manufacturer’s instructions.

电气连接
Electrical Connections

电线和连接应该符合所有有关规定。
Wiring and connections comply with all applicable codes.

• 热水器和电源都需适当接地。
  Water heater and electrical supply are properly grounded.

• 配置适当的过载保险丝或安装保护断路器。
  Proper overload fuse or circuit breaker protection
  installed.