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ABOUT JSA

New Sorority Complex

Scope

Mechanical systems design and construction phase services for a 90,000 sq. ft. housing complex comprised of 10 different sorority houses.  The Complex is expected to achieve Earthcraft House Certification.

Owner
Emory University

Mechanical Contractor
McKenney's

Prime Consultant
Jova Daniels Busby

Construction Cost
$15,000,000 (total)
$3,000,000 (mechanical)

Special Circumstances

• The complex utilizes a variable refrigerant flow system comprised of 18 outdoor units serving 180 indoor fan coil units.  Each indoor fan coil unit has its own thermostat and is capable of either heating or cooling function independent of any other indoor unit.

• Outside air is directly delivered to each occupied space in the complex via one of three tempered energy recovery units (TERV) that contain electric preheat, direct expansion cooling with hot gas reheat, and enthalpy heat wheel components.  Each TERV uses variable frequency drives and a medium pressure supply duct distribution system with variable volume terminal units.  Constant outside air is provided to the individual sleeping spaces, while outside air to group spaces is modulated using carbon dioxide sensors.

• Hot water is provided by two 1,000 MBH input natural gas domestic hot water boilers and stored in two separate 500 gallons tanks.

• A new 1250 GPM fire pump provides 100 psi at the top of the most remote standpipe as mandated by code.

• Mechanical systems efficiencies meet or exceed Earthcraft Certification standards.

• Due to very limited plenum space, mechanical systems above the ceilings were minimized.

• Building automation system monitors both hot and cold water consumption as well as power usage/demand for each Sorority for billing purposes.