Evaluation of GSA Maintenance Practices of Large Centrifugal Chillers and Review of GSA Refrigerant Management Practices.
Evaluation of GSA Maintenance Practices of Large
Centrifugal Chillers and Review of GSA Refrigerant
Kao, J. Y.
NISTIR 5336; 51 p. January 1994.
Sponsor:General Services Administration, Washington, DC
Available from: National Technical Information Service
Order number: PB94-143344
refrigerants; evaluation; maintenance; chillers; visual
inspection; nondestructive tests
This study contains two major subjects involving
maintenance of large centrifugal chillers in the General
Services Administration (GSA) facilities. The first
part is to use nondestructive testing (NDT) techniques
for chiller testing and maintenance. NDT techniques
investigated are visual inspection, leak testing,
vibration analysis, infrared thermal testing, eddy
current testing, oil analysis, and acoustic emission
testing. With the expection of acoustic emission
testing, all other techniques are recommended for GSA
chiller maintenance. The second part of this study is
about refrigerant management. It reviews the Clean Air
Act, Environmental Protection Agency regulations, a
recently issued Executive Order, and Standards from the
American Society of Heating, Refrigerating, Air
Conditioning Engineers on subjects associated with ozone
depleting refrigerants. Also reviewed are GSA
refrigerant handling practices and certain GSA retrofit
specifications involving these refrigerants.
Recommendations are made for refrigerant management
including chiller retrofit/conversion.