Alarm, feed valve or pump starter switch actuates just before the burner switch cuts the firing.
警报器，进水阀或泵启动装置开关在燃烧器关闭燃烧之前启动。
Flow switch used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc., when no flow occurs.
流量开关用于声音报警，灯光报警，当无流量时启动电机、泵等继电器或起动器开关。
Make sure that electric power is available from the switch gear to the starter of the electric motor drivers.
确保从开关柜到电机驱动器的起动器有电。
Make sure that electric power is available from the switch gear to the starter of the electric motor drivers.
确保从开关柜到电机驱动器的起动器有电。
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