Development Center HVAC Upgrades

Calhoun ISD is seeking bids for HVAC upgrades at the Dorris Klaussen Development Center, including a chilled glycol cooling system, air-handling equipment, and related electrical work.

Calhoun ISD


General
Open (open)
RFP-CISD-270000000261
Dec 01, 2026 07:00 PM
Nov 09, 2026 12:00 PM
Invitation for/to Bid (IFB/ITB)
Local
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Original Solicitation Links
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RFP-CISD-270000000261

]

dkdc hvac upgrades

Contact
raffertk@calhounisd.org
+12697892437
Submission Instructions
Mail
Kori Rafferty, Calhoun ISD Administration Building, 17111 G-Drive North, Marshall, MI 49068
Description

The project involves HVAC upgrades at the Dorris Klaussen Development Center, centered on installing a chilled glycol cooling system with associated pumps, piping, hydronic accessories, and electrical upgrades. Work also includes converting two existing rooftop units from direct-expansion cooling to glycol cooling, and installing new air-handling units for the gym and cafeteria. The owner has elected to purchase several major items directly, including the chiller, new gym and cafeteria air-handling units, glycol coils for the existing rooftop units, testing and balancing, and building management system upgrades; bidders should exclude use tax for those items. The contractor is responsible for receiving, rigging, and installing equipment included in its work, coordinating with other trades and the occupied facility, securing permits, and completing commissioning and closeout requirements. The project requires prevailing-wage labor, a one-year warranty on contractor-provided work and equipment, and performance, labor, and material bonds equal to 100% of the bid amount. The bid package calls for a completed bid form, Familial Disclosure Affidavit, Iran Business Relationship Affidavit, and a 5% bid bond.

Classification Codes
NAICS238220Plumbing, Heating, and Air-Conditioning Contractors
PSCZ242Maintenance, Repair or Alteration of Heating and Cooling Plants
Smart Codes
hvac system upgradeschilled water pipingelectrical service upgrades
Specifications
Supply & Service
Timeline
Nov 9, 2026-Issue Date
Nov 18, 2026 08:00 PM-Mandatory Pre-Bid Meeting (required)
Dec 01, 2026 07:00 PM-Bid Submission Deadline
Dec 01, 2026 07:00 PM-Bid Opening
Requirements
Required
  • Bid Bond — 5%
  • Performance Bond — 100%
  • Payment Bond — 100%
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