The only thing new to your existing system is the hose coming down from the batch heater, the batch connect valve, and the “T” connector at the Hot Out valve to tie it all together.
整个热水系统中只有从批量加热热水器引水的软管、连接阀、以及接在止热阀（the HotOut valve）上用作贯通的三通是新添加的。
The only thing new to your existing system is the hose coming down from the batch heater, the batch connect valve, and the “T” connector at the Hot Out valve to tie it all together.
整个热水系统中只有从批量加热热水器引水的软管、连接阀、以及接在止热阀（the HotOut valve）上用作贯通的三通是新添加的。
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