Johnson Controls YORK YK Operation Manual page 5

YORK compressor oils
®
Through many years of testing and field experience, YORK has developed and blended oils to
®
meet the specific requirements of our products. Genuine YORK oil is proven satisfactory by years
of operation in thousands of plants. YORK cannot test and qualify all brands of oil available for a
refrigerant system application. For this reason, it is best to use genuine YORK oil throughout the life
of our equipment.
During the warranty period, our policy is that you must use genuine YORK oil. Using other brands
of oil or additives during the warranty period can lead to the loss of warranty coverage.
Due to complex material compatibility and system performance issues, the specific oil used in a
refrigeration system is critical. It is relatively simple to define the basic physical characteristics of oil
for a particular application. Ensuring compatibility with system materials, and reliable performance
within a complex system, requires extensive laboratory and field testing. Given YORK cannot certify
the compatibility of alternate lubricants and additives, we strongly recommend that you avoid using
them.
CAUTION
Never mix different oil types, brands, or additives.
When changing the lubricant, the entire volume of lubricant must be changed. Take adequate
measures to ensure that all residual lubricant is removed from the system before you substitute or
change the genuine YORK oil grade.
YORK Oil Application, Oil Change Interval, and Oil Quality Limits Replacement Recommendations 5
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