05/10/2026
The the internet gurus that attempted to trash talk me and my business for being in a 3PH electrical panel, telling me how much they know half of what they were talking about that half of the country excludes this and I should stick to my own disconnect. For context I have a C21 unlimited license (meaning I can work on ANY HVAC-R equipment) in the state of Nevada limited only by my bond amount!
To you I say
KMA
I know my business and what I am and am not allowed to do.
Your assumptions smell like your lips were tucked in tight someplace they never should have been and it’s why opinions are like a$$holes. Keep them to yourself.
Prove what you know and do not overstep your bounds.
Provide a SOLUTION. This is a difficult one for most people. Everyone has an opinion. None of you had a solution to teach the rest of us how to properly test voltage inside a 3 phase panel. You all made assumptions of what I’m allowed to do and how I arrived at my conclusions yet none of you taught us anything
Two final points. First. When the F—— have you seen a neutral wire in a 3 phase disconnect at an HVAC unit??? Right so stop telling me how to check voltage.
Second. Keep reading paying very close attention to the part that says running wires and replacing breakers!!!!
Key Allowed Work for C-21 (Especially C-21a Refrigeration and C-21b/d Air-Conditioning/Maintenance)
• Electrical service to the AC unit: You can install or run the dedicated electrical service from the unit/device itself up to protection against excessive current (i.e., the breaker or disconnect) at the main electrical panel. This includes the wiring (pulling conductors) for the AC unit’s dedicated circuit. 
• Replacement/repair work: Under the maintenance subclass (C-21d) and air-conditioning scope (C-21b), you can repair/replace parts of existing systems, including motors, relays, compressors, and related appurtenances. This supports replacing wiring or connections as part of a legitimate AC unit replacement or repair, provided it doesn’t alter the system’s overall design. 
“Properly silent” interpretation (as you described it):
• Running wires from a subpanel back to the AC unit for replacement is generally permitted if it’s part of the unit’s dedicated circuit and stays within the “from the unit to the panel” boundary.
• Replacing the breaker in the subpanel (if that subpanel feeds the AC) should be allowable as part of servicing the unit’s electrical protection, since it’s tied directly to the AC equipment.
This scope has been consistent for years (including around 2011), with minor amendments that didn’t narrow the electrical tie-in for HVAC units. Always confirm with the Nevada State Contractors Board (NSCB)
JUST SAYIN!
Really wish I wouldn’t have deleted the video with all the commentary because sometimes I feels really good to prove the internet wizard’s wrong
