Brief: To design and deploy three 500kW roof-mounted chillers for a critical-national-infrastructure data space.

Project value: £1.5 million


Procol were tasked with the design and installation of three 500kW Airedale indirect free-cooling chillers, including pipework circuits and matching air-handling units to operate at elevated water temperatures for maximum efficiency. The chillers operate on independent chilled-water circuits to provide entire-circuit N+1 resilience to the facility.

The chillers and air-handling units feature UPS-backed supplies for pumps and fans to enable indirect free-cooling of the space to continue should there be an outage of the mains power.

This site is one of a number being designed and delivered to a major UK client by Procol.

For professional advice on a technical project such as this one, call 01225 701710 or email