Grit Building HVAC Replacement

This contract involves the complete replacement of the HVAC system for the Grit Building in Rockford, Illinois, including demolition of the existing make‑up‑air unit, installation of a new AAON direct‑fired make‑up‑air unit, new exhaust system, full TPO roof replacement, associated steel flashings, fire‑stop penetrations, and extensive controls integration (BACnet, SCADA, gas‑detection, fire‑alarm). The work is to be performed by a mechanical contractor, an electrical contractor, and a general contractor, all coordinated to keep the water reclamation plant operating during construction. The agency requires the successful bidder to furnish performance and labor‑materials bonds, maintain specified insurance levels, and meet a variety of code and safety standards. • Mechanical scope: FRP ductwork, stainless‑steel supports, new roof membrane, new HVAC equipment, vibration controls, and testing/balancing. • Electrical scope: New 100 A feeder panel, motor‑control center, fire‑alarm expansion, lightning‑protection system, and BACnet wiring. • Roofing scope: Fully‑adhered 60‑mil TPO membrane with metal flashings, walk‑way pads, and roof‑drain assemblies. • Procurement: Open competition with a mandatory pre‑bid conference (13 Mar 2018) and bid opening on 22 Mar 2018. The contract is a fixed‑price award to Miller Engineering Co.