[gtojohn]

I picked up a new set of contact probes, will check this weekend when time permits. I will do more tests. Last months utility bill was 2 year low for that period. 13 days left for this period. Unit is still chugging along, cooling the house well. Though I don't yet know exact liquid line temp I guarantee you it sweats as the ambient drops.Both compressors had a 21kbtu label rating. I never felt it was oversized before. Previously when we had summer company it struggled. 134a runs at about half the pressure as r-22 which is why it was popular in automotive, less likely to leak, less drag on the compressor.