# Boone County Ionwave #38-01OCT26 Addendum 3

Boone County Annex air-handler and HVAC equipment replacement

**Posted:** September 11, 2026
**Respond By:** October 22, 2026
**Identifier:** 38-01OCT26 Addendum 3
**NAICS:** 238220

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.

[View original listing](https://bocomobids.ionwave.net/PublicDetail.aspx?bidID=705&SourceType=1)