HVACRepair and Maintenance Decisions

A technician needs to know if a scroll compressor's mineral oil can be replaced with polyester oil to retrofit an R22 system to R407C, or if the compressor must be replaced entirely.

0
Opp. Score
44
Reports
1
Severity
3Medium
Trend
0%
stable
First Seen
Jul 1, 2026

Join the beta — full access for the first 1,000 builders

Join Beta