Quote:
Originally Posted by retiredguy123
True, but the HVAC shutoff located at the unit is a safety requirement so the installer can see and operate the shutoff switch where he/she is working. It ensures that someone in the house doesn't inadvertently turn on the breaker in the remote panel.
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In recent construction, they also have a 120V GFI outlet under the cover of the disconnect box.
This power is still hot when pulling the disconnect and/or shutting off the breaker.
You need to also turn off the breaker that powers the outside GFI outlets before doing anything inside that box.