Manitowoc Indigo Series Technician's Handbook page 217

Contamination Cleanup Chart
Symptoms/Findings
No symptoms or suspicion of
contamination
Moisture/Air Contamination
symptoms
Refrigeration system open to
atmosphere for longer than
15 minutes
Refrigeration test kit and/or
acid oil test shows
contamination
Leak in water cooled
condenser
No burnout deposits in open
compressor lines
Mild Compressor Burnout
symptoms
Oil appears clean but smells
Refrigeration test kit or acid
oil test shows harmful acid
content
No burnout deposits in open
compressor lines
Severe Compressor Burnout
symptoms
Oil is discolored, acidic, and
smells acrid
Burnout deposits found in the
compressor, lines, and other
components
Part Number STH025 02/12
acrid
Required Cleanup
Procedure
Normal
evacuation/recharging
procedure
Mild contamination
cleanup procedure
Mild contamination
cleanup procedure
Severe contamination
cleanup procedure
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