Manitowoc

4. Recovered refrigerant must come from a“contaminant-free” system. To decide whether thesystem is contaminant free, consider:• Type(s) of previous failure(s)• Whether the system was cleaned, evacuatedand recharged properly following failure(s)• Whether the system has been contaminatedby this failure• Compressor motor burnouts and improper pastservice prevent refrigerant re-use.• Refer to “System Contamination Cleanup” onpage 190 to test for contamination.5. “Substitute” or “Alternative” Refrigerant• Must use only Manitowoc-approved alternativerefrigerants.• Must follow Manitowoc-published conversionprocedures.Part Number 80-01111-9 7/10 183