美国人家用电热水器 安装说明书和使用及维护指南(5)
电气要求条件
Electrical Requirements
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 | 触电危险 维修之前要切断电源。 操作之前安装好全部部件和控制板。 否则可能导致伤亡或触电。 Electric Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electric shock. |
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 | 火灾危险 要采用适当尺寸的实心铜线。 要采用通过美国UL认证的应变消除装置。 将地线连接到绿色的底线螺丝上。 否则可能导致伤亡、火灾或触电。 Fire Hazard Use proper size solid copper wire. Use a UL approved strain relief. Connect ground wire to green ground screw. Failure to do so can result in death, fire, or electrical shock. |
如果您不具备正确安装本热水器电气线路的基本技能，请停止安装，而是请有资格认证的电工来从事安装工作。
If you lack the necessary skills required to properly install the electrical wiring to this water heater, do not proceed, but have a qualified electrician perform the installation.
在进行电气连接时，要确保
When making the electrical connections, always make sure:
电源供应具备适当的过载保险丝或断路器保护。
The electrical supply has the proper overload fuse or circuit breaker protection.电线大小和连接符合所有相关规定。
Wire sizes and connections comply with all applicable codes.电线包裹在经过认可的导管内（如果当地有关规定要求的话）。
Wiring is enclosed in approved conduit (if required by local codes).热水器和电源供应都有适当的接地。
The water heater and electrical supply are properly grounded.
图３，4和5仅仅为120/240伏、2线型号提供参考接线图。为了正确进行电气连接，请随时注意参考位于热水器上的接线图。
Figures 3, 4, and 5 are provided as reference drawings for the 120/240v 2-wire models only. Always reference the wiring diagram located on the water heater for the correct electrical connections.
在将电线安装到热水器上时：
When installing the electrical wiring to the water heater:
在进行任何电气连接之前，请确保热水器已经住满水。（参阅图2）
Be sure tank is completely filled with water before making any electrical connections. (See Figure 2)切断通往热水器的电源。
Shut off the power to the unit.卸下热水器顶部接线盒盖上的固定螺丝。把盖子放在旁边。
Loosen the screw holding the junction box cover to the top of the water heater. Set the cover aside.遵守当地供电部门的要求和相关的规定将电源线连接到热水器上。作为标准配置，在接线盒上有一个1/2英寸的开口，用于导管连接。
Connect the electrical supply to the water heater in accordance with local utility requirements and codes. A standard 1/2 inch opening has been made in the junction box for conduit connections.通过将电气部件上的接地端子连接到热水器接线盒里绿色接地螺丝上，实现热水器的接地。
Ground the water heater by connecting a grounding wire from the electrical service ground terminal to the green grounding screw in the junction box of the water heater.
