A cheese manufacturer in France was looking for a new reliable process cooling system that would help a sustainable transition. An air-cooled chiller air-cooled chiller was required to deliver precise low temperature between -3° to 1°C for the cheese-making process. The challenge was both to improve an old installation and reduce gas consumption. The main constraint was to limit the cooling unit to match the power of the factory.


Trane offerd a highly sustainable solution combining a RTAF 130 HSS SN - THR with a RTSF 050 and using R1234ze refrigerant.

The air-cooled RTAF chiller provides the requested precise low temperature needed for the cheese-making process.

The heat recovery option allows to reuse the energy extracted from the cooling process. The City RTSF heat pump elevates the temperature up to 80°C to produce comfort heating and hot sanitary water.

The highly efficient process is set up with no compromise on safety or performance:
• Ozone impact: 0 ODP (Ozone Depletion Potential)
• Global Warming Potential: GWP <1 (less than CO2)
• No TriFluoracetic Acid (TFA) production
• Non-flammable R1234ze at room temperature below 30°C (Class 2L)
• Non-toxic (Class A)


Trane made the difference thanks to the reliability of our products, our low temperature systems experience and our highly skilled service organization. This new system has been delivering efficient process cooling and low carbon footprint which allows great energy cost savings.

From warehousing to food processing plants, Trane extended portfolio of 90kW to 1200 kW units can meet the needs of all food and drink applications down to -12°C.

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Project highlights

Location: France

Market application: Food & Beverage

Customer need: Process Cooling

Products installed: • 1 x Sintesis Prime RTAF air-cooled Chiller • 1 x City RTSF water-to-water Heat pump • Energy saving option: Total Heat recovery

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Featured products

Product name: Sintesis Prime RTAF Air-Cooled Chiller

At a glance:

  • Low energy consumption: high full (EEER) and part load efficiencies
  • Trane screw compressor with Variable Volume Index (XSE) to reach remarkable efficiency levels
  • Reduced refrigerant charge through microchannel condenser coils and optimized refrigeration circuit

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Featured products

City™ RTSF Water-Cooled Chiller

Product name: City™ RTSF Water-Cooled Chiller

At a glance:

  • 99.5% reliability rate
  • Compact and modular: Fits in restricted spaces - 920 mm width only
  • Fully optimized for HFO refrigerant R1234ze (<1 GWP)

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