As you see on the drawing, 'The Operation center' is an open from 1st floor to 2nd floor. (It shares one ceiling of 2nd floor, There's no ceiling on 1st floor)
In this situation, where should the sprinkler pipe be connected to? is it okay to connect the sprinkler pipe to the 2nd floor's floor control valve? or must be connected to 1st floor?3
Because the sprinkler system is connected to the floor control valve of 2nd floor already.