Hi all, I have an install for a split AC System in a home. The HVAC installer is trying to have me use a tray cable that is approved for direct burial and sunlight resistant. From what I can find in the code, I don't think this cable is approved for instalations in a home or conceled in walls. Am I mistaken? Can I staple it to the outside of the house? I see nothing that permits stapling but I also see nothing that prohibits it.