My home still has the low voltage relay system in the ceiling of several rooms. The ceiling lights all work fine. My question is, can a new ceiling fan be installed on the existing wiring or is a line voltage replacement in order for the install?
The ceiling utility box has the relay mounted inside of it. Existing wiring colored black & white and a red lead off of the relay are there, but I don't see a ground strap to the utility box. I can see that the red line off of the relay would need to go to the plus side of the fan. The fan/light kit is calling for a third line ground to be attached to the utility box/ground strap. I don't want to attempt installing w/o knowing what the grounding situation is on that utility box - I'm sure it's been there since 1957.
In a situation like this, is it ok to go with only a negative connection, no ground strap?
Thanks for the help!