If this was a fused disconnect and someone used copper pipe instead of the fuses it was incorrect. Replace the pipe with the proper size fuses or replace the disconnect with a pullout style unless the unit specifically calls for fuse protection.
If this was a fused disconnect and someone used copper pipe instead of the fuses it was incorrect. Replace the pipe with the proper size fuses or replace the disconnect with a pullout style unless the unit specifically calls for fuse protection.