UPDATED GUIDANCE USE OF TAP WATER IN ATC CHILLERS Date
12/06/2024
Page
Earlier documentation may have indicated that the use of tap water in ATC chillers was permissible under certain conditions. Based on further evaluation and our ongoing commitment to system reliability, we now advise against the use of tap water in any ATC chiller models. This updated recommendation reflects a more comprehensive understanding of global water quality variation.
WHY THIS MATTERS Water quality can vary widely by region and application. Tap water may contain: • High mineral content (e.g. calcium, magnesium) • pH imbalance • Biological matter (e.g. algae, bacteria) • Chemical additives (e.g. chlorine, fluoride) These factors can contribute to: • Internal corrosion • Degradation of seals and materials • Biological fouling • Reduced heat transfer performance As such, continued use of unapproved fluids, including untreated tap water, may affect long-term performance in some instances.
CURRENT RECOMMENDATION To support the ongoing reliability and efficiency of ATC chillers, we recommend using only ATC-approved fluids.
PREFFERED FLUID Hexid - Providing corrosion protection, freeze protection, algae inhibition, and effective thermal performance. If Hexid is not available in your region, please contact ATC for guidance.
SUPPORT For questions regarding coolant compatibility or fluid selection for your specific system, please contact ATC Technical Support.
1