Free Coolers | Free Cooling System
Fully offload chillers for up to 90% of the year | Massively reduced your energy bills
Transtherm Free Coolers are designed to reduce energy consumption and improve the carbon footprint of chilled water systems. When ambient air temperatures are low enough, through the majority of the autumn, winter and spring, the free cooler automatically dissipates the system heat allowing the more energy consuming chiller to switch off. As the system is fully packaged, complete with integral controls, 3 way valve and actuator and bypass pipe work, they can be easily installed on existing systems as well as new builds. No communication between the free cooler and chiller is necessary. In typical process cooling systems chillers can be offloaded for up to 90% of the year.
Contact us for a Free QuoteTop Features
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Reduce Energy consumption
Reduce by as much as 80%
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Short Payback period
Full payback in as little as 6 months
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Reduce chiller maintenance costs
By offloading the chiller, it also extends the chiller lifespan
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Maximise benefits
Enhanced Capital Allowance Schemes
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Fully packaged
Only requires single 3ph connection
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Bespoke designs
Available to cater for unique requirements
Details about Transtherm's Free Coolers | Free Cooling System
Preferred over chillers with integrated free cooling


As Transtherm Free Coolers can cool the full duty for much larger parts of the year in higher ambient temperatures they yield much higher energy and cost savings. A remote free cooler is designed to do nothing but provide free cooling and has its own purpose built control system and 3 way valve and bypass system and therefore is a simple and reliable way to give maximum savings and quick payback.
Massive cost and energy saving
Perfect for existing chilled water systems

Where end users have an existing chiller and would like a proven way to massively reduce energy costs but cannot stretch their CAPEX for a brand new chiller, a Transtherm Free Cooler is low cost way to make this happen. The system is fully packaged and only requires a power connection and to be attached to the pipe work system in-line, prior to the chiller. No integration with the chiller or any other part of the system is necessary.
Easy installation

Who are Using Transtherm's Free Coolers | Free Cooling System?
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RBS Data Centre – Edinburgh
3 x Transtherm Air Blast Coolers were supplied to cool the condenser water circuit of CRAC (Computer Room Air Conditioning Units) in summer months and offer free cooling in winter months
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Automotive Sector – Larkhall, Lanarkshire
Transtherm worked with a key reseller to supply a 300kW Air Blast Cooler for tool head cooling and a 400kW Packaged Free Cooler to offload chillers for over 60% of the year
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Red Bull Racing F1 Team Data Centre
3 x Transtherm Hydrodynamic coolers, combining Air Blast Cooler and Pump Set technologies, were used to cool CRAC units in summer and for Free Cooling in the cooler months. Variable speed fans and pumps and a bespoke PLC program were used to further enhance the energy efficiency of this data centre cooling system
- Transtherm Cooling Industries Ltd
- 12 Banner Park
- Wickmans Drive
- Coventry
- CV4 9XA
- United Kingdom
- Tel: +44 (0)24 7647 1120
- Fax: +44 (0)24 7647 1125
- Sales Email: sales@transtherm.co.uk
Please note that all calls are recorded for training and monitoring purposes.
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