23-Tricool Engineering Cooling and heating systems News 060608

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Low profile chiller solution for Hilton Hotel

When the Hilton London Green Park hotel replaced its air conditioning and ventilation system, it took the opportunity to improve its cooling performance and chose a low profile solution by Tricool to comply with planning regulations.

Nestled in the heart of Mayfair, the Hilton London Green Park is a six storey Grade II listed building that dates back to the 18th Century. The area is known for its listed buildings and is protected by stringent building regulations and aesthetic requirements to preserve the area’s rooflines.

Howard Electrical Limited, an approved contractor for Hilton Hotels Corporation, was tasked with replacing the chillers which cool the public areas and back of house to the required 21ºC. A straightforward model upgrade was initially considered, but it became apparent that a customised approach was required to address the space constraints and aesthetic considerations.

Known for its expertise in designing systems wherever there is a need for cooling and temperature control, Tricool was asked to design and manufacture a solution.

Westminster Council also had its own criteria that necessitated the chillers either being identical to the ones being replaced or occupying a smaller footprint, having a lower profile so as not to alter the area’s skyline and reducing noise output.

Taking onboard all the elements that needed to be incorporated, Tricool custom built two specialist low profile SCC132 chillers.

The two 132 kW chillers (one used as a standby unit) incorporate the latest advances in refrigeration design to provide a trouble free working life operating on refrigerant R407C gas.

Each unit is fitted with a single 70hp, eight-cylinder semi hermetic reciprocating compressor, complete with three stages of cooling control, low profile condenser complete with three 800mm diameter axial fans and a single circuit shell and tube type evaporator.

As well as significantly improving energy efficiency, Howard Electrical Limited had the opportunity to reconfigure the rooftop pipe work and pumps, together with the internal air handling plants and fan coil units.

Noise was also an important consideration in the design of each unit and Tricool design teams were able to select components to limit this to 58dB(A) @ 10 metres.
“Standard chillers are suitable for many applications but are not designed to cope with exacting performance specifications or space and weight limitations,” says Martin Storey, Operations Director for Tricool Engineering.

“The Hilton hotel is a listed building with a roof top plant that has limited access and space. By working within those parameters we were able to provide a satisfactory solution that could easily be craned into place with minimal disruption for the hotel and its guests.”

Email: info@tricool.com