In the renovation of a historic museum in UK, the consultants were aiming to replace the gas boiler system with a fully electric system – without doing major works to equipment in the famous listed building.


Trane proposed a cascade system including two CXAX air-cooled Heat pumps to provide the base load and a City RTSF water-to-water Chiller boosting temperatures to 80°C leaving water temperature.

The units were installed at ground level adjacent to the building. Trane was also able to provide numerous options such as epoxy coated coils, soft start, and BACnet Interface. The solution included a very complete control offering from Trane to allow better operation, better control, better measurement and better optimization of the fully-integrated solution.


Trane made the difference showing great responsiveness to the client's principal requirement for an efficient fully electric cascade heating system. The renovation project ensure the protection of the musem heritage and offers a comfortable climate to visitors. The museum is delighted with the installed sytem and keen to repeat business with our company.

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Project highlights

Location: United Kingdom

Market application: Temperature control

Customer need:

Products installed: • 2 x Conquest CXAX air-cooled Heat pump • 1 x City RTSF water-to-water Chiller • Trane Chiller Plant Control

Featured products

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). Available with R515B as an alternative

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Featured products

Conquest CXAX Air-to-Water Heat Pump

Product name: Conquest CXAX Air-to-Water Heat Pump

At a glance:

  • Compact design: reduced footprint and low-profile design
  • Reversible operation: cooling or heating
  • Optimized for R454B low GWP refrigerant and high seasonal efficiency

Product page