The installation of unions in both the hot and cold water supply lines is recommended for ease of removing the water heater for service or replacement.

建议在热水和冷水管线上安装管接头，以方便热水器的维修或更换。

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From the product design, production, installation, commissioning to provide one-stop service, to provide you with a full set of water treatment solutions.

从产品的设计、生产、安装、调试到售后提供一条龙服务，为您提供全套的水处理解决方案。

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As part of your comprehensive containment program, you should require the installation of a Series 7 unit as a condition for the user to receive service from the public water system.

作为综合性密封规划的一部分，用户应该需要安装系列7装置作为用户接受共用水供应系统服务的条件。

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