Johnson County Ionwave #2026-031 Addendum 1

Johnson County Administration Building HVAC Renewal Project – Chillers, AHUs, Cooling Towers, and Controls

Johnson County, Kansas is seeking bids for a comprehensive HVAC Renewal Project at its Administration Building in Olathe, KS. - Government Buyer: - Public Building Commission of Johnson County, Kansas (Financial Management and Administration, Purchasing Division) - Project managed by Megan Wasek, Senior Purchasing Administrator - Project Scope: - Renewal and replacement of Air Handler Units (AHUs), chillers, boiler, and pumps - Base bid: Replace existing belt drive fans in AHUs 1-4 with new fan arrays (reusing existing AHU cabinets), coil cleaning, and related demolition - Alternate bid: Full replacement of AHUs 1-4 - Replacement of chillers (basis of design: Daikin; alternates allowed) - Replacement of cooling towers (specified OEMs: Marley, BAC/Baltimore Air Coil, Evapco, or approved equals) - Installation of new control valves (Belimo or equivalent) on VAV boxes and unit heaters - Integration with existing Allerton BMS, with provisions for future migration to Automated Logic Controls (ALC) - OEMs and Vendors: - Daikin (chillers) - Marley, BAC (Baltimore Air Coil), Evapco (cooling towers) - Belimo (control valves) - Products/Services Requested: - Air Handler Unit (AHU) fan array replacement (4 units) - Chiller replacement - Boiler replacement - Pump replacement - Cooling tower replacement - Control valve installation - Full HVAC system renewal and installation (labor, materials, equipment, supervision) - Unique/Notable Requirements: - $150,000 contingency allowance for unforeseen conditions - Mandatory pre-bid conference and site visit for General/Prime Contractors - 5% bid bond required - Compliance with project-specific conduit and wiring standards - Coordination for crane and elevator access due to equipment weight and site constraints - Building will remain occupied during construction; phased work required to minimize occupant impact - Warranty requirement: 5 years from substantial completion for cooling towers - Integration with existing BMS and future migration capability - Liquidated damages of $1,250 per day for delays beyond substantial completion

Description

This solicitation is an Invitation for Bid (IFB) for the renewal of the HVAC system at the Johnson County Administration Building. The work includes the replacement and renewal of Air Handler Units (AHU), Chillers, Boiler, and Pumps, encompassing all materials, labor, equipment, and supervision necessary to complete the project. Bidders must submit sealed bids electronically via IonWave by the specified closing date. A mandatory pre-bid conference and site visit is required for General/Prime Contractors to be eligible to submit a bid. Bidders must also submit a bid bond equal to 5% of their total bid amount.

View original listing