CHILLERS
CHILLERS
Carrier’s bespoke chillers are going underground
Carrier is supplying bespoke high- performance, high-effi ciency chillers for London’s Elizabeth Line project to meet its cooling needs and the stringent fi re safety materials standards required for use underground.
F
ifteen customized Carrier AquaSnap air- cooled liquid chillers with Greenspeed Intelligence will provide resilient, reliable cooling for new Elizabeth Line stations at Tottenham Court Road, Paddington, Woolwich and Farringdon.
Carrier’s UK team worked closely with its chiller research and development centre in Montluel, France, to develop a solution that met the strict fi re prevention requirements for the project, due to its underground location. The bespoke chillers are equipped with zero halogen, low-smoke insulation and cables, and fi nished with specialist paint, all formulated to emit very limited smoke or fumes when exposed to heat or fl ame
The changes to the standard factory
specifi cation required detailed research on alternative components and their application. The need for zero halogen, low-smoke cables required a completely new chiller wiring loom.
30 August 2018
Matthew Maleki, Carrier product manager who headed the compliance project, said: “The specifi cation was challenging and there were no standard factory-produced chillers available that were compliant. Carrier’s technology specialists were very innovative, and we worked closely with them to develop a custom-made chiller that met all of the requirements, and provides effi cient and reliable cooling with proven Carrier technology.”
Carrier’s AquaSnap 30RB chiller is based on highly-reliable rotary scroll compressors running on refrigerant R410A, a quiet-running AeroAcoustic fan system, and high-effi ciency microchannel condenser coil technology. In addition to the importance of fi re-safe materials for all equipment used underground, reliability is also a key issue. The chillers are built on a heavy-gauge galvanized steel frame and come with a range of security grilles and hail guard options. Safety features include low
ambient head pressure control and high short circuit current rating.
Carrier is believed to be the only manufacturer able to supply chillers in full compliance with the required fi re safety materials standards for use on London underground stations.
About Carrier
Founded by the inventor of modern air conditioning, Carrier is a world leader in high-technology heating, air conditioning and refrigeration solutions. Carrier experts provide sustainable solutions, integrating energy effi cient products, building controls and energy services for residential, commercial, retail, transport and food service customers. Carrier is a part of UTC Climate, Controls & Security, a unit of United Technologies Corp., a leading provider to the aerospace and building systems industries worldwide.
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