Wittman airport control tower chiller replacement

Winnebago County is soliciting sealed bids for the Wittman Airport Control Tower Chiller Replacement project, seeking a comprehensive solution to replace the existing chiller system at the airport. The procurement requires contractors to provide all necessary labor, equipment, and materials to upgrade the airport tower's cooling infrastructure. Specifically, the project involves removing the existing chiller (CH-1) and installing a new chiller (CH-001) with a 33.3 kW capacity, four compressors, and precise electrical and mechanical system modifications. A mandatory pre-bid meeting is scheduled for November 18, 2025, at 10:00 am at Gate #33, with sealed bids due on December 2, 2025, at 3:00 pm Central Time through the County's OpenGov Procurement portal. Contractors must submit a bid bond of 5% of the total bid amount and maintain bid validity for 60 calendar days. Evaluation criteria will likely include compliance with technical specifications detailed in the 23WINN03.00_BD_SPEC.pdf document, which outlines rigorous requirements for materials, installation methods, system testing, and performance standards.

The procurement does not explicitly indicate specific set-aside designations for disadvantaged enterprises. Contractors must meet comprehensive insurance requirements, including Workers' Compensation ($100,000 per accident), Commercial General Liability ($1,000,000 per occurrence), and Automobile Liability ($1,000,000 per occurrence). While no incumbent vendors are identified, the project requires integration with existing airport infrastructure, specifically electrical systems in rooms 110, 111, and 114 of the control tower. Contractors must provide a Certificate of Insurance and a Public Improvement Performance/Labor and Material Payment Bond. Although a specific budget is not disclosed, the detailed technical specifications and comprehensive requirements suggest a significant infrastructure investment. The county will retain 5% from each partial payment until 50% project completion, and invoices will be processed net 30, with Winnebago County maintaining a tax-exempt status for materials purchased.