Quality Work

The Security Building

Customer: Lawrence Group

Project Overview: This building is one of Jarrell’s seven LEED^® certified projects. At its completion in 2007, it became one of the few historical rehab buildings to achieve LEED^® certification in the country. The building was awarded LEED^® Silver by the United States Green Building Council.

Challenges/Solutions: Jarrell’s high performance, efficient HVAC system includes a variable air volume system with hot water heat. The vertical 54 inch round duct that was installed by Jarrell feeds floors two through nine from a central 60,000 CFM air handling unit. The system offers six zones of control on each floor. The existing multi-zone duct was used to minimize the first cost on each floor. Refrigerant R-134 chillers were used for added efficiencies and LEED^® compliance. The system has successfully incorporated C02 sensors, which allow outdoor air dampers to increase ventilation rate effectiveness to the building operator.