PSC002905-01: EOI - Supply of Direct Drive Chiller

Australian Nuclear Science and Technology Organisation · Ref PSC002905-01 · Australia (Commonwealth)

Expression of Interest · Published 19 October 2026 · Mechanical Plant & Equipment & Services, Air-Conditioning Systems Supply, Mechanical Services, Refrigeration · Value not stated

The Australian Synchrotron (AS) is a world-class research facility operated by the Australian Nuclear Science and Technology Organisation (ANSTO) at Clayton, Victoria. The facility operates continuously and relies on a central refrigeration system to provide chilled water for critical facility heat loads, including low-conductivity water (LCW) cooling and HVAC systems.

Chiller 1 is one of four chillers serving the primary cooling circuit. It is approximately 22 years old, has accumulated significant run hours and has reached end of life, with spare parts no longer readily available. Replacement is required to restore reliable N+1 cooling redundancy and reduce the risk of loss of critical cooling capacity.

The existing system supplies chilled water at approximately 6°C, with return water at approximately 10°C. The condenser water circuit typically enters the chiller at approximately 20°C and leaves at approximately 23°C for heat rejection through the cooling towers.

Summary of the published description

The Australian Nuclear Science and Technology Organisation (ANSTO) is seeking the replacement of Chiller 1 at the Australian Synchrotron facility in Clayton, Victoria. Chiller 1 has reached end of life and requires replacement to restore reliable N+1 cooling redundancy for critical heat loads, including low-conductivity water cooling and HVAC systems. The existing cooling system operates with chilled water supplied at approximately 6°C (return at ~10°C) and condenser water entering at approximately 20°C (leaving at ~23°C).Show more

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Australian Nuclear Science and Technology Organisation: contract awards since 202342
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