Compatibility of R-245ca with motor materials under retrofit conditions

This document, which is a reproduction of slides from a presentation at the June 1995 ASHRAE conference, evaluates and provides data on a number of motor parameters after the motor materials have been exposed to the refrigerant R-245ca. Data on conditions of the insulating varnish, the magnet wire, the insulations, and the elastomers are presented, as well as a note on work in progress. While it was concluded that most materials are compatible with R-245ca under retrofit conditions, it was also noted that the flammability, toxicity, efficiency, and cost of R-245ca and/or Blends are unresolved