I will be wiring two 10 ton ac units, two 20 ton ac units and one 7.5 ton ac units in the next couple of weeks. I have purchased the raintight disconnects for all of the units, 4- 60 amp disconnects and one 30 amp disconnect for the 7.5 ton. I have decided to use fused disconnects since the breaker is quite a ways from the units and I thought it would be best to interrupt the fault as close to the unit as possible. There is currently no GFCI service recepticles near any of the units, so I have to install and wire those as well. My question is, where in the code does it state whether one should use a fused or non-fused disconnect? And also where is the article that requires a GFCI for servicing? I believe there must be one within 25 feet of each unit, right? I have not done many AC's this size mostly home units, and I just want to make sure I am not missing something. Any help appreciated. Thanks.
PS, these are 480 volt units.
PS, these are 480 volt units.