Ames Ionwave #2027-016 Addendum 1

Ames Technical Services Building HVAC Renovation and Equipment Upgrade

The City of Ames, Iowa, is seeking a lump-sum renovation of its Technical Services Building, centered on a substantial HVAC system upgrade. - Government buyer: City of Ames, Iowa — Water & Pollution Control Department; Purchasing office is identified in the bid materials. - Scope: Upgrade HVAC systems and complete related mechanical, electrical, plumbing, and architectural work. Demolish and install Exhaust Fans EF-1 through EF-9. Project documents identify a single prime contract and no phases or bid alternates; construction drawings also describe phased work. Existing building services must remain operational except for necessary interruptions coordinated with and approved by the owner. - Prominent OEMs and specified equipment: Trane (chiller and air-handling units), Aerco (boilers), Bell & Gossett (pumps), Greenheck (exhaust fans), Titus (terminal air boxes), and Honeywell (approved HVAC direct-digital controls system). Other named equipment and material manufacturers include Wessels, Amtrol, Toshiba, CRC, Apollo, Crane, Watts, Victaulic, Caddy/Pentair, Cooper B-Line, USG, CertainTeed, and PureAire. - Major scheduled equipment: Two Aerco Benchmark boilers (B-1 and B-2); one Trane CGAM chiller (CH-1); two Trane CSAA air-handling units (AHU-1 and AHU-2); three Bell & Gossett pumps (P-1 through P-3); one Wessels glycol makeup package (GMP-1); one Amtrol expansion tank (ET-1) and one air separator (AS-1); three Toshiba Q9 variable-frequency drives (VFD-1 through VFD-3); nine Greenheck exhaust fans (EF-1 through EF-9); one CRC pressure control panel (PCP-1); and 12 Titus terminal air boxes (1-1 through 1-7 and 2-1 through 2-5). See product line items for descriptions and scheduled capacities. - Other specified materials and systems: Hydronic and natural-gas piping and valves; pipe hangers and supports; ductwork and piping insulation; mechanical identification; acoustical tile ceilings; gypsum board assemblies; HVAC direct-digital controls; and air-quality monitoring for refrigerant, exhaust, carbon monoxide, and oxygen-depletion hazards. Hydronic valve examples include Apollo, Crane, Watts, and Victaulic; air-quality monitoring examples include Honeywell and PureAire. - Required services and notable requirements: HVAC commissioning, certified testing/adjusting/balancing, functional performance testing, deficiency resolution, final reports, and owner training that includes at least eight hours onsite. Startup, controls integration, and seasonal testing are required. The successful contractor must provide a two-year maintenance guarantee after completion and City acceptance; equipment and contractor work are also generally covered by a one-year warranty from substantial completion. - Other named firms and plan holders: SVPA Architects Inc. (architect/interior designer) and KEDbluestone (engineering firm). Named plan holders include Absolute Group; All Iowa Mechanical; Bergstrom Construction Inc.; CALSTART, INC.; Communications Engineering Company; ConstructConnect; Corn States Metal; CribProcure Inc; Cunningham Inc; Dickerson Mechanical; Distinctive Landscapes; Dodge Construction Network; Electric Pump; Happe Commercial; Heartland Roofing, Siding and Solar; Henkel Construction Company; Hooper Corporation; INTREN, LLC; Iowa Pump Works, Inc; and JE Dunn Construction Company. The notice indicates additional plan holders but does not name them.

Description

The City of Ames is seeking bids for renovation work at the Ames Technical Services Building, with the stated general scope being an upgrade of the HVAC system. The bid documents include plans and specifications, and Addendum 1 states there are no project phases or bid alternates and calls for demolition and installation of Exhaust Fans 1–9 according to the plans and specifications. Bids must be submitted electronically through AmesBids by October 28, 2026, at 2:00 p.m. local time; bid security and a completed Bidder Status Form are required with the bid. Substantial completion is required no later than March 26, 2027, after award and approval of the contract and performance bond.

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