Hello, I was wondering if anyone possibly had any information/literature at all on the following york equipment M#'s

I have been hunting all over the internet and have not found anything terribly close to an exact match. Any help would be much appreciated

I recently just picked up a new account with several air cooled chillers. Paperwork ceases to exist of course.

York chiller
M#YCAJ878YX6/46
S#YFAM903777

York Chiller
M#YCAJ77SU6/46PA
S#YCAM870363

York Chiller
M#YCAZ4B33-17PA
S#RFEM6685AA