I have the following doc for a Mc Quay chiller, send me your email address and I will send it to you. You can also try to call Daikin McQuay, 866.462.7829 but I have never had good luck with them providing information when trying to use OPM driver.
MicroTech® Reciprocating Chiller
(American Manufacture)
Open Protocol™ Data Communications
Information Packet
Version 5.0
April, 1996