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174 Part Number: 000015431 Rev 02 6/20
CONTAMINATION CLEANUP CHART
Symptoms/Findings Required Cleanup
Procedure
No symptoms or suspicion of
contamination
Normal evacuation/
recharging procedure
Moisture/Air Contamination
symptoms
Refrigeration system open to
atmosphere for longer than
15 minutes
Refrigeration test kit and/or acid oil
test shows contamination
No burnout deposits in open
compressor lines
Mild contamination
cleanup procedure
Mild Compressor Burnout
symptoms
Oil appears clean but smells acrid
Refrigeration test kit or acid oil test
shows harmful acid content
No burnout deposits in open
compressor lines
Mild contamination
cleanup procedure
Severe Compressor Burnout
symptoms
Oil is discolored, acidic, and smells
acrid
Burnout deposits found in the
compressor, lines, and other
components
Severe contamination
cleanup procedure
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