Has the hydrant been discharged from the main engine?
There is no high water tank and voltage regulator, will not start the pressure regulator pump. If yes, it will start the constant pressure pump.
The main fire engine hits the automatic state, and the fire control cabinet hits the automatic state.
The following big pump is started by fire hydrant button, not press the hydrant button, how to drain the water, will not start the big pump.If you need to start, press the hydrant button.
