On a current project we have exhaust fans located above a lay-in ceiling at the permitter of the building at different locations on the 5th-8th floors the feeders are from 2 MCC's some from the 3rd floor MCC and some from the 8th floor MCC. here is the question we would like to mount a N.F. disconnect switch at the fan for convenience purposes when they need to work on the fan they can turn the disconnect off to de-energize the circuit, can you locate this disconnect above a lay-in ceiling adjacent to the equipment? I tried looking in different spots of the 2005 NEC with no luck. Thanks for the help.