R22 To 407C Conversion Chart. R407c units will contain polyolester oil (poe). Condensing units built and supplied by imi air conditioning ltd, (now marstair ltd), before 1999, for use with r22 will contain mineral oil.
R22 Conversion Page 3 from hvac-talk.com
R407c units will contain polyolester oil (poe). Condensing units built and supplied by imi air conditioning ltd, (now marstair ltd), before 1999, for use with r22 will contain mineral oil.
1 R22 to 407c conversion chart
R407C Units Will Contain Polyolester Oil (Poe).
Condensing units built and supplied by imi air conditioning ltd, (now marstair ltd), before 1999, for use with r22 will contain mineral oil.
