mounting in a metal box
I had a c905 transformer fail. I noted that it says it is to be installed in a metal box. This one was not, it was in a plastic box. Does the metal box act as a heat sink for the transformer or is there anothe reason for this requirement?
I just called Nutone tech support. Only the C915 is listed for installation INSIDE any sort of box.
Date published: 2014-06-28
Allowable distance from the door chime LA14WH?
If we install this down the hall from the LA14WH, what is the maximum distance we can run with the 16V current using 23AWG wire?
Thank you for your question on the model LA14WH door chime and C905 transformer. The voltage drop over a 23 gauge wire is pretty high, so it would be best for the transformer to be within 10 to 15 feet of the chime. We normally recommend using at least 18 gauge wire for these installations.
Date published: 2014-09-12
Is Yellow Tape Needed?
I removed the yellow tape on this transformer and everything is still funtioning properly. Do I need this tape? What is the purpose of the yellow tape? Thanks!
Thank you for your question on the model C905 transformer. The yellow tape is something the manufacturer puts around the laminations when it is manufactured. There is no problem with removing it.
Date published: 2016-01-29