Boone County Ionwave #38-01OCT26 Addendum 3

Boone County Annex air-handler and HVAC equipment replacement

Boone County, Missouri, is seeking a contractor to replace the HVAC air-handling equipment at the Boone County Annex in Columbia. - Government buyer: Boone County Commission, through Boone County Purchasing/Purchasing Department. - Work requested: Remove and dispose of the existing Trane air handling unit, furnish and install replacement HVAC equipment, connect it to existing building systems, and complete testing and commissioning. The bid is one lump-sum project; the replacement air-handler manufacturer is not specified. - OEMs and brands named: Carrier is identified for scheduled furnaces and condensing units; Ruud, Lennox, and York are listed as alternatives or approved equals. Trane is the manufacturer of the existing unit. Plasma Air is named for the ionization device. - Equipment and quantities: The revised HVAC schedule identifies two F1 furnace/condensing-unit sets and one C1 set. Another equipment listing gives one furnace, model 59SC6A100M211120, and one condensing unit, model 26SPA660W003. The attachments do not clearly reconcile these schedule quantities and models. - Notable specifications: F1 equipment is listed at 100,000 BTU heating input, 97,000 BTU output, 120,000 BTU total cooling, 90,000 BTU sensible cooling, and 2,000 CFM at 0.5-inch static pressure. The separate condenser listing specifies 50,000 BTU and 16.8 SEER; the revised plans also call for 16 SEER2, low-ambient operation to 0°F, programmable thermostats, and a twinning kit. - Other system requirements: Install a Plasma Air AUTOCLEAN 1560 ionization device on the return side; set the unit fan to run during occupied hours. Provide a motorized 6-inch fresh-air damper balanced to 150 CFM and interlocked with exhaust fans, and coordinate connections to existing ductwork, controls, electrical, gas, refrigerant, and condensate systems. - Contract requirements: The attachments cite prevailing-wage requirements for bids over $75,000, performance and payment bonds, OSHA training requirements, and liquidated damages of $500 per day for late completion. - Performance: Work is to begin after award and notice to proceed and be completed by the project deadline stated in the bid documents. No option years or subscription term are identified.

Description

Boone County is soliciting bids to dismantle and dispose of the existing Trane Air Handling Unit at the Boone County Annex and replace it with a new Air Handling Unit. The work includes complete installation and testing in accordance with the stated requirements, specifications, terms, and Bid Plans. An optional pre-bid conference and site visit was scheduled for September 17, 2026, at the Boone County Annex.

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