The Luton Hoo Hotel, Luton: a 5-Star Hotel Caloris Project

The 5-star Luton Hoo Hotel can be seen when flying to or from Luton Airport, and is situated in 1,000 acres of parkland.

Colt provided two separate Caloris systems comprising 120 horizontal indoor units in various sizes, one for every room of the hotel, as well as five outdoor units.

One reason for the client choosing Colt was that the indoor units are a slim 247mm in depth, and the outdoor units are also low in profile, factors which were instrumental both in meeting planning constraints and in keeping the roof line of this listed building as low as possible.

The Caloris system was chosen for its particular suitability for hotels. Each indoor unit only contains a small amount of refrigerant, and only water flows between each unit. This avoids the need to provide a refrigerant leak detection system within each room (as set out in BS EN 378), thus saving cost. Furthermore these units are not required to be inspected under the F-Gas Regulations, and that the units operate with high efficiency at a low noise level. Finally Colt has developed a new user-simplified hotel controller which is installed in each room.

The client also liked the ease with which the Caloris system could easily link with a ground source energy system should they wish to pursue this at a later date.

The system is very adaptable as each room unit is completely independent of all the others. With a VRF system, a unit failure in one area could lead to a complete system fault condition. With the Colt Caloris system, one single unit can be disconnected if necessary, without disrupting the rest of the system.

Consultant: Designbrook
Main Contractor: Cardy
Mechanical Services Contractor : HMS