UNSPSC 43202221: Automotive heating ventilation air conditioning HVAC resistor assembly

Automotive HVAC resistor assemblies

UNSPSC 43202221 Automotive heating ventilation air conditioning HVAC resistor assembly is a Commodity code that in recent state and local practice encompasses far broader HVAC system work than the code name suggests—chiefly ductwork repair, replacement, and maintenance; system overhaul and modernization; retrofit kits; and water testing on hydronic systems. State and local issuers under this code span county sheriff departments, state departments of transportation, municipalities, transit authorities, and school districts. The work solicited ranges from routine maintenance contracts with 24/7 emergency response requirements and quarterly preventive-service schedules to capital projects involving refrigerant conversion, control-system modernization, and installation of complete replacement units. Contractors typically must hold industry licensing (California C-20 HVAC contractor credentials, Certified Water Technologist certifications), maintain substantial insurance ($1 million commercial general liability is common), and in many cases accept prevailing wage obligations. Pricing structures vary from hourly labor rates with material reimbursement to firm fixed pricing for the entire contract term.

Recent activity clusters in California, with the California Department of Transportation issuing at least two water-testing IFBs across nine counties (Humboldt, Shasta, Alameda, San Luis Obispo, Fresno, Los Angeles, San Bernardino, Inyo, and San Joaquin) and a statewide three-year lighting and safety products agreement. Orange County, California (Sheriff-Coroner) posted a high-volume as-needed IFB for HVAC duct repair and replacement due November 16, 2026, with five to eight percent bid preferences for locally certified small and disabled veteran businesses. The Utah Transit Authority issued an RFP due May 25, 2026, for overhaul and modernization of 82 HVAC units across 38 Bombardier bilevel commuter rail vehicles using best-value evaluation (70 percent technical, 30 percent price). The Town of Waterford, Connecticut posted an IFB for ductless split air-conditioning system replacement at a community center due October 13, 2026, under Connecticut prevailing wage. Rockwood School District in Missouri sought school bus air-conditioning retrofit kits due September 8, 2026. The City of Detroit requested quotes for ethylene glycol antifreeze in bulk and drums due October 9, 2026, with Detroit-based business equalization credits of one to five percent. Opportunities show no single dominant issuing body; activity is distributed across multiple jurisdictions and service types, with geographic concentration in California and secondary activity in the Midwest and Northeast.