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Fortune 500 data storage giant EM C Corporation w as building a new facility to house its researchand development testing labs. It w as essential that t heir ultra-sensitive equipment be kept cool24/7/365 putting a high load on the HVAC system. W hats more, the prohibitive cost of laboratorydow ntime demanded extremely reliable equipment and responsive service capabilities. W ith the w ideseasonal variations of t he New England climate, a system that operated optimally at part-load condi-tions w ould mean significant energy savings for EM C, as w ell as qualify them f or local utilit y rebates.

Carriers 19XRV Evergreen chillers with unit-mounted variable frequency drives (VFDs) deliveredexceptional value. W ith a chill er part-load value (NPLV) less than .40 kW/ ton, the Carrier systemqualified for more than $200,000 in utility rebates. Effi ciency gains wi ll reduce operating costs by15% annually over competi ti ve products, saving EM C an estimat ed $50,000 to $75,000 per year.Carriers Racan air handling units provided flexibility, w ith a customized solution to varying rooftopdimensional requirements and properly sized coils.

Carrier Part-Load Efficiency Nets EMC

$200,000 Rebate Plus Energy Savings

The Carrier System, w ith superior part- load operation, wil l save 15% annually,compared to competit ive equipment.

Case Study EMC CorporationCase Study EMC Corporation

AIRSIDE/APPLIED/CONTROLS/SERVICE/SPECIAL SOLUTION/ TOTAL SYSTEM/UNITARY

EDUCATION/HEALTH CARE/LODGING/MANUFACTURING/OFFICEBUILDING/RETAIL/SPECIAL

Project Objectives

Solution

Annual OperatingCost Comparison

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EM C, a w orld-leading provider of data storage systems, softw are and services was building a new researchand development facil i ty in Hopkinton, M A, to house their testing laboratories and engineering offices.EM Cs unique application required four t imes the t ypical amount of w attage/ sq. ft., placing a very heavydemand on the chil lers and requiring a total of 950,000 cfm of air distr ibution from the rooftop air handlers.

The labs operate year-round and the sensit ive testing equipment they contain must be under precise climatecontrol around the clock. Failure of the buildings HVAC equipment, causing downti me, could cost EM C tensof t housands of dollars per hour.

Carriers system solution w as reliable, and provided additional operating cost savings of up to $75,000per year, plus uti l i ty rebates totaling more than $200,000. The Carrier solution measured system efficiencyunder part- load conditions, which occur much more frequently t han full- load conditions in t he buildingsNew England location.

Our approach on this job w as to help the customer see the signif icant cost reductions that could beachieved w ith a system that had superior part- load efficiency, said Lucas Turton, Carrier Senior SalesEngineer. Annual operating savings combined wit h the uti l i t y rebates added even more value to Carriersquality and reliabil i ty advantages.

The systems f ive 19XRV Evergreen chil lers use unit-mounted VFDs to precisely match cooling to buildingload, maximizing system eff iciency and preventing overcooling. The chil ler plant operates at an im pressivesystem part load value (SPLV) of .37 kW/ ton or below , saving EM C 15% in operational costs over competi-t ive equipment.

Carrier was also able to respond to EMCs need for customized dimensions on their rooftop air handlingunits. The Racan air handlers were configured to exactly f i t the space and were easily adapted to changingrequirements. This custom solution also allow ed properly sized coils to be installed.

The Carrier team accomplished all this as a fast-track project, with a very t ight t im eframe. Quick delivery,installation and start-up were crit ical to EM Cs business operations. W ith an emphasis on cooperation andcustomer focus, Carrier sales and service and J.C. Higgins mechanical contractors w orked together for suc-cessful, on-time completion of the project.

Project Synopsis

"The equipment came in onthe dates promised, helping

me to push through a fast-track project. To make

schedule, I needed to knowthat the units coming

in w ould be true to thedrawings and that Idhave answers when I

needed them t he Carriersupport w as excellent."

Phil M oran,foreman,

J.C. Higgins

200 0 Car ri er Corpo rat io n 09/ 00 811 -10 030

Case Study EMC Corporation

AIRSIDE/APPLIED/CONTROLS/SERVICE/SPECIAL SOLUTION/ TOTAL SYSTEM/UNITARY

EDUCATION/HEALTH CARE/LODGING/MANUFACTURING/OFFICEBUILDING/RETAIL/ SPECIAL

For more information, contact your nearest Carrier Representative, call 1.800.CARRIER or visit our web site at www.carrier.com

Project Summary

Location: Hopkinton, MA

Project Type: New construction

Building Type/Size:Steel construction, brick facade;four stories; 300,000 sq. ft.

Building Usage:Testing laboratories, off ices

Total Cooling (tons): 2,775

Objectives: System responsiveto high wat tage/ sq. ft.; reliabil i ty

to prevent downtim e; part- loadefficiency

Major Decision Drivers:Equipment delivery t ime; systemefficiency

Design Considerations:Custom rooft op requirements forair handlers

HVAC Equipment:Five mode l19XRV Evergreen chi llers

w /VFDs; 16 Racan air handlers(40,000 to 72,000 cfm); four 39Tcentral station air handlers(10,000 to 15,000 cfm); ten53-series ductless split systemsw ith ten 42-series fan coil units(for telecommunications rooms)

Unique Features:Large coolingrequirement/ sq. foot; maximumannual operating hours

Project Cost Range:M ore than $5 mi l lion

Installation Date:First phase, Decem ber, 1999;second phase, November, 2000

Consulting Engineer:SymmesM aini & M cKee Associates

Contractor:J.C. HigginsRefrigeration

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