Carrier Corp., a world leader of heating, ventilation, air-conditioning and refrigeration solutions, and a unit of United Technologies Corp. (NYSE:UTX), recently completed the third phase of energy projects for Hartford Hospital. With the goal of increasing patient comfort and increasing energy efficiency, the current $5 million project upgraded an aging and inefficient cooling system in the hospital’s 867 bed facility.
Carrier has been working with Hartford Hospital for over 30 years, but the most recent series of energy efficiency upgrade projects began just over 10 years ago. In 1998, Carrier began phase one by making system-wide improvements on the hospital’s north campus, installing a Carrier Comfort Network® (CCN) controls system which allowed for automatic adjustments, precisely matching conditioned air delivery to actual building conditions. The controls technology upgrade along with a new variable flow pumping system resulted in saving the hospital $1.2 million in annual operating costs. In 2005, Carrier expanded the chiller plant free cooling system, improve the cooling tower air recirculation, and provide advanced lighting upgrades, all of which resulted in annual savings of more than a quarter of a million dollars.
In the third and final phase, Carrier was awarded $5 million to install three Evergreen® 19XRV water-cooled centrifugal chillers using non-ozone depleting HFC-134a. Variable frequency drives (VFDs) were used to increase efficiency and lower energy consumption by precisely matching motor speed with building demand. In addition, the VFDs reduce mechanical stress and motor wear, requiring less maintenance and prolonging system life.
“The Carrier team worked closely with us to complete the most recent upgrade with minimal disruption to the hospital’s normal operations,” stated Bimal Patel, vice president, Hartford Hospital Support Services. “It was essential for us to maintain critical services and patient comfort.”
“Carrier is very proud of its ongoing partnership with Hartford Hospital,” stated Kelly Romano, president, Carrier Building Systems and Services. “We are committed to designing and installing the most reliable, sustainable building systems so that important institutions like Hartford Hospital can concentrate on doing what they do best.”
About Carrier Corp.
Carrier Corp., headquartered in Farmington, Conn., is the world’s largest provider of heating, air-conditioning and refrigeration solutions. With 2008 revenues of $14.9 billion, Carrier has operations in more than 170 countries. Carrier is part of United Technologies Corp., a Hartford, Connecticut-based provider of products and services to the aerospace and building systems industries worldwide. Visit www.carrier.com for more information.