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52 TRG-TRC011-EN
notes
period four
Maintenance Considerations
If air leaks into the chiller, the corrosion inhibitor is depleted as it reacts with the
air and produces hydrogen. To maintain chiller efficiency and ensure continued
corrosion protection, the lithium bromide solution must be analyzed
periodically to determine if corrosion inhibitor and performance additive levels
are within acceptable limits. This is the most important periodic maintenance
requirement! A laboratory test is required to determine these levels. Suggested
intervals for testing are once per year for comfort-cooling applications and
twice per year for chillers in continuous or critical service. Analysis of the
refrigerant is also recommended. Consult the chiller manufacturer for specific
corrosion inhibitor and performance additive recommendations.