Building 500 HVAC Project

Atlanta Metropolitan State College is requesting sealed bids for replacing terminal units in Building 500 under a Design-Bid-Build construction contract, with bids due August 27, 2026, at 2:00 p.m. in Room 207 of the 600 Building on campus.

The scope involves demolition of existing Powered Mixing Box (PMB) terminal units and installation of new Series Powered Induction Units (PIUs) serving all three floors of the classroom and office building, replacement of hot water heating piping with isolation valves and balancing equipment, installation of electronic Building Automation System controls by ALC with 24V control power, comprehensive system testing and balancing, ductwork leakage testing per SMACNA standards, and delivery of record drawings, test and balance reports (certified by AABC or NEBB), and maintenance manuals in three hardcopy and one electronic PDF set. The contractor must comply with the 2024 International Building Code, 2024 International Mechanical Code, NFPA 90A and 101, ASHRAE 62.1-2016, and 2023 National Electric Code with Georgia amendments. Hot water reheat coils must be rated for 200 psi working pressure; medium-pressure air supply operates at 30 percent minimum airflow. The contractor must maintain continuity of service with minimal occupant disruption and coordinate with the existing campus central plant hot water system. A one-year warranty on all work is required.

The contract will be awarded on a lump sum basis to the lowest responsive and responsible bidder. Upon issuance of a Proceed Order, the contractor must complete all work within 180 consecutive calendar days. A bid bond of not less than 5 percent of the total bid amount is required, with performance and payment bonds at 100 percent of the contract sum required prior to execution. Contractors must hold Georgia contractor licensing, demonstrate a current ratio of 1.0 or higher, maintain a Workers' Compensation Experience Modification Rate not exceeding an average of 1.2 over the past three years, and provide evidence of successful completion of comparable public works projects. A mandatory pre-bid conference was held August 4, 2026. A voluntary site walk-through is scheduled for August 18 from 10:00 a.m. to noon. Questions are due August 7, 2026, with responses posted by August 12. The mechanical engineer of record is Johnson Spellman & Associates. The owner's project contact is Darren Thomas at Atlanta Metropolitan State College, and technical inquiries may be directed to scottbailey@clayton.edu.