Welbilt Koolaire KD0270A, Руководство техника, Страница: 112 / 136

112 Part Number STH047 Rev01 10/18
System Contamination Cleanup
General
This section describes the basic requirements for restoring
contaminated systems to reliable service.
Importar
Koolaire® assumes no responsibility for the use of
contaminated refrigerant. Damage resulting from
the use of contaminated refrigerant is the sole
responsibility of the servicing company.
Determining Severity of Contamination
System contamination is generally caused by either
moisture or residue from compressor burnout entering the
refrigeration system.
Inspection of the refrigerant usually provides the first
indication of system contamination. Obvious moisture or
an acrid odor in the refrigerant indicates contamination.
If either condition is found, or if contamination is
suspected, use a Total Test Kit from Totaline or a similar
diagnostic tool. These devices sample refrigerant,
eliminating the need to take an oil sample. Follow the
manufacturer’s directions.
If a refrigerant test kit indicates harmful levels of
contamination, or if a test kit is not available, inspect the
compressor oil.
1. Remove the refrigerant charge from the ice machine.
2. Remove the compressor from the system.
3. Check the odor and appearance of the oil.
4. Inspect open suction and discharge lines at the
compressor for burnout deposits.
5. If no signs of contamination are present, perform
an acid oil test to determine the type of cleanup
required.