Boone County Ionwave #38-01OCT26 Addendum 5

Boone County Annex air-handler replacement and rebuild alternate

Boone County is seeking bids for HVAC replacement work at the Boone County Annex, including a separately priced option to rebuild the existing air handler. - Government buyer: Boone County Commission, Boone County, Missouri; Purchasing Department. The solicitation and addenda identify Melinda Bobbitt, Boone County Purchasing. - OEMs and named product brands: Carrier, Trane, Ruud, Lennox, and York are named for HVAC equipment; Plasma Air is named for the ionization device. Trane is also identified as the manufacturer of the existing air handler. Some documents describe certain brands as alternatives or approved equals. - Base work: Remove and dispose of the existing Trane air-handling unit, then provide, install, and test replacement HVAC equipment at the Boone County Annex. One new air-handling unit is listed in the bid materials. - Equipment details: The documents identify a 100,000-BTU-input/97,000-BTU-output natural-gas furnace, model 59SC6A100M211120, and a 50,000-BTU air-cooled condenser, model 26SPA660W003, rated 16.8 SEER. A revised equipment schedule also lists two F1 furnace/condensing-unit sets and one C1 set; the schedule describes F1 as 120,000 BTU total cooling and C1 as 16 SEER2. These schedule entries are reported separately because the documents do not fully reconcile the different equipment descriptions and quantities. - Other scheduled items: Programmable thermostat(s), a low-ambient kit for 0-degree operation, a Plasma Air AutoClean 1560 ionization device, and a motorized 6-inch fresh-air damper balanced to 150 CFM. The ionization device is to be installed on the return side, with the unit fan set to run during occupied hours. A duct heater is also identified and is to match existing capacity. - Alternate: Bidders may separately price rebuilding the existing air handler while retaining its cabinet. The alternate includes replacing the evaporator coil, blower motor and fan, condensate drain pan and line, thermostatic expansion valve (TXV), and other operating components; the rooftop condensing unit is still to be replaced. - Period of performance: Work begins after award, with the start established at the pre-construction stage. Completion is required by the project deadline stated in the bid documents. No contract duration, option years, or annual subscription is identified. - Not specified: The available materials do not provide a definitive total equipment quantity across all schedules or a reliable contract value estimate.

Description

Boone County is seeking bids to dismantle and dispose of the existing Trane air handling unit at the Boone County Annex and install and test a replacement in accordance with the bid requirements, specifications, terms, and plans. Addendum 5 permits bidders to submit an alternate proposal to rebuild the existing basement air handler by replacing its internal components while retaining the outer cabinet; the rooftop condensing unit would still be replaced. The solicitation is a formal request for bid, with responses due October 22, 2026, at 11:30 a.m. CT.

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