Johnson Controls > Case Studies > Smooth Transition to Energy Savings

Smooth Transition to Energy Savings

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 Smooth Transition to Energy Savings - IoT ONE Case Study
Applicable Industries
  • Finance & Insurance
Applicable Functions
  • Facility Management
The Customer
About The Customer
Morgan Stanley is a leading global financial services firm providing a wide range of investment banking, securities, investment management and wealth management services. The firm’s employees serve clients worldwide including corporations, governments, in
The Challenge
The building was equipped with four end-of-life Trane water cooled chillers, located in the basement. Johnson Controls installed four York water cooled centrifugal chillers with unit mounted variable speed drives and a total installed cooling capacity of 6,8 MW. Each chiller has a capacity of 1,6 MW (variable to 1.9MW depending upon condenser water temperatures). Johnson Controls needed to design the equipment in such way that it would fit the dimensional constraints of the existing plant area and plant access route but also the specific performance requirements of the client. Morgan Stanley required the chiller plant to match the building load profile, turn down to match the low load requirement when needed and provide an improvement in the Energy Efficiency Ratio across the entire operating range. Other requirements were a reduction in the chiller noise level to improve the working environment in the plant room and a wide operating envelope coupled with intelligent controls to allow possible variation in both flow rate and temperature. The latter was needed to leverage increased capacity from a reduced number of machines during the different installation phases and allow future enhancement to a variable primary flow system.
The Solution
Johnson Controls was contracted to replace four end-of-life water cooled chillers that provided air-conditioning for one of Morgan Stanley’s offices in Canary Wharf, London. Because of the nature of the company operations, the building was to remain fully operational throughout the project supporting both the occupants and technology. Therefore, the chillers needed to be changed out on a phased basis. Johnson Controls delivered a tailor made turnkey solution, consisting of four York water cooled centrifugal chillers. The equipment was selected and designed to deliver a conservative estimate of £30k / year saving in energy cost.
Quantitative Benefit
  • A Conservative estimate of £30k / year saving in energy cost.

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