Then open the “hot out” valve at the electric water heater and turn the breaker on.
然后我们关闭热水器的电力加热器的开关并将断路器打开。
2
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 Hot Out valve）上用作贯通的三通是新添加的。
3
The APU fuel system consist of a fuel valve, control unit, solenoid valve, filter, heater and control valve.