Case Studies



The Hartsfield-Jackson Atlanta International Airport (H-JAIA)
Atlanta, GA

Equipment:
Buffalo Air Handling supplied 68 rooftop air handling units totaling 1,437,600 CFM. The units are 2" double wall construction with service corridors and include supply and return/exhaust fans, heating and cooling coils, pre and final filters, dampers, variable frequency drives and factory mounted controls.

Owner:
The Atlanta Airlines Terminal Corporation (AATC)

Engineer:
Newcomb & Boyd

Construction Manager:
Comprehensive Program Services, Inc. (CPS)

Sales Engineers in cities throughout North America. For the nearest office, call:

Telephone: (434) 946-7455
Telefax: (434) 946-7941
www.buffaloair.com

The Hartsfield-Jackson Atlanta International Airport (H-JAIA) has a total area of 4,700 acres, of which the Terminal Building, Concourses T, A, B, C, D and E, and the International Concourse total 130 acres. H-JAIA is also one of the world’s busiest airports, handling upwards of 250,000 travelers and 2,600 flights per day.

The Buffalo Air Handling roof mounted units service Concourses A, B, C and D. We supplied 19 units for Concourse A, 17 units for Concourse B, 17 units for Concourse C and 15 units for Concourse D.

Buffalo Air Handling supplied 68 air handling units (AHU’s) to replace existing equipment. The AHU’s had to be designed to handle additional capacity, while maintaining the existing footprint and matching the existing openings exactly. With flights arriving as early as 5:00 AM and taking off as late as midnight, the work had to be staged and conducted at night. There could be no delays or gate closures.

The sixty-eight units were shipped in ten phases, beginning 10 weeks after order placement and continuing two weeks apart to completion. The units arrived with controls completely mounted and wired, so the installing contractors could have the replacement units up and running by the following morning. All units arrived as promised and all concourses operated continuously throughout the process.

Sizes:
  • 68 AHU’s ranging from 8,000 to 36,000 CFM
Construction:
  • 2" double-wall, 16 gauge, G90 galvanized steel outer, 20 gauge aluminum solid inner wall, except perforated in fan sections
  • Flat finish exterior coating
  • 3 pcf density insulation
  • 6" structural steel channel base with roof curb caps
  • 12 gauge, continuously welded HRS floor with 2" turned up lip, non-skid paint and exterior curb flange
  • 18 gauge 304 stainless steel, IAQ drain pan
Components:
  • Class 2 and 3 plenum supply fans
  • Class 1 and 2 AF-DWDI centrifugal return / exhaust fans
  • Premium efficient, open drip proof motors, suitable for VFD service
  • Internal isolation bases with 2" deflection springs
  • Aerofin plate fin hot water and chilled water coils; 5/8" O.D., .025" copper tubes and .0095" aluminum fins
  • 30% efficient pre-filters
  • 85% efficient final filters
  • Opposed and parallel blade dampers
  • Supply and return smoke dampers
  • Variable frequency drives
  • Single point wiring with 460-120 volt transformer for lights, switches and receptacles
  • Customer controls mounted and wired
  • Finned tubular heater with thermostat for corridor
  • Access doors with window and test ports
  • Stairs to corridor access doors
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