Colt - energy efficient air-conditioning system (Caloris Wrf)

Bluebrick Travel Inn, Wolverhampton

Project location:

  • Wolverhampton, UK

Project Details:

  • Client:
    Whitbread Plc
  • Architect:
    Paddy Jenks Associates
  • M&E Designer & Installer:
    J&B Hopkins
  • Area served:
    1,800 m² (gross)
  • No of Indoor Units:
    99
  • Outdoor Units:
    2xCHA 262 (with up rated circulation pumps)
  • Date of completion:
    June 2007

Colt-Products:

Leaflet:

Colt has installed an energy efficient Caloris WRF (Water and Refrigerant Flow) air-conditioning system in the recently completed Bluebrick Travel Inn at Wolverhampton. Chosen for its versatility, Caloris is perfect for hotel applications, providing a space, energy and money saving solution.

Bluebrick Travel Inn (front view)

One of the reasons Caloris was selected is due to its ability to cope with the specifics of this development, which required the outdoor units to be placed 80m away from the hotel. A Variable Refrigerant Flow (VRF) system would experience an excessive loss of duty and efficiency at this distance, while the performance of Caloris does not diminish. The design of the Caloris WRF system also saved the client money by negating the need for a buffer tank, since the water pipework system is used instead, and because the pipework is buried in the ground, thermal mass improves energy efficiency.

Bluebrick Travel Inn (room view)
Climate Control Switch

For the hotel's 85 bedrooms, split over five floors, Colt Caloris size 1 and 2 units are installed in every room, each with its own de-centralised control, so occupants can adjust the temperature accordingly. Its indoor, horizontal units are also amongst the quietest and slimmest on the market.

Unlike VRF air-conditioning systems, Colt Caloris uses water to distribute energy between the different heat pumps, meaning a minimal amount of refrigerant charge is used, removing the need for a costly leak detection system in each room while also avoiding the internal inspections required by the F-gas regulations. In addition, since each unit works independently, any problems can be localised, whereas unit failure with VRF can lead to a complete system fault. Externally two highly efficient Colt Ait to Water heat pumps have been installed for resillience.

The Travel Inn is part of the Bluebrick development in Wolverhampton - the dramatic renaissance of the canal side quarter. Within walking distance of the centre and a planned £2.9m transformation of the immediate road networks, Bluebrick will be the only purpose built mixed-use development within this city.