How do I install lock mount on C907 transformer?
I am replacing the transfomer for my door chimes, which was attached to outside of junction box. The new one looks identical to the old one, except that the threaded connector is not attached to the body of the unit, although it was included in the box over the input and ground wires.
I don't see how to attach it -- the body of the unit looks to be held together by rivets, and screwing it in from the outside doesn't seem to work.
Any ideas? Thanks..
I just swapped my old transformer for this one. The new one connected to the box at the bottom thru a hole and is secured by a large ring type screw. Pretty straight forward. See photo.
Date published: 2018-12-18
will your 2 tone bar mechanical chimes work on a 24 volt system?
Only if modified by running the solenoids in series. this would be providing 16v to each chime. they probably don't recommend it, but if the lead wire gauge can handle it, it's probably ok.
Date published: 2016-08-20
Most of the door chimes indicate that the C905 transformer should be used (it has smaller dimensions than the C907).
What door chimes are large enough to accommodate the C907 as I need the higher wattage?
Thank you for your question. All of our door chimes require 16V 10VAC. The C905 is our standard transformer for use with all chimes. The C907 is for use when pairing up to 3 chimes together, as each chime requires 10VA to operate properly. For further assistance, please contact Nutone Technical Support at 888-336-6151.
Date published: 2017-08-10