NIGP 05504: Air Conditioners and Parts

NIGP 05504 Air Conditioners and Parts, Item code, encompasses repair, replacement, retrofit, and testing services for HVAC equipment and related components used across state and local government facilities. State and local governments procure ductwork repair and replacement, ductless split-system replacement, antifreeze coolants, water testing for hydronic systems, and bus air-conditioning retrofit kits under this code. Recent solicitations show demand for emergency and scheduled HVAC maintenance on an as-needed basis, specialized testing and certification of heating and cooling systems, and equipment modernization on transit vehicles. Issuing bodies include county sheriffs' offices, state transportation departments, independent school districts, municipal community centers, transit authorities, and city fleet operations. Pricing structures vary from hourly labor rates with tiered daytime and after-hours premiums to fixed-price supplies and lump-sum service agreements; most contracts require firm pricing over multi-year terms with no automatic profit increases.

California and Connecticut dominate recent activity in the code. The Orange County Sheriff-Coroner is soliciting HVAC ductwork inspection, testing, cleaning, sealing, and corrective maintenance across multiple regional facilities under IFB0603145003CF, with bids due November 16, 2026; the scope includes emergency twenty-four-hour response and compliance with SMACNA and ASHRAE standards, with five to eight percent bid preferences for Orange County Local Small Business and Disabled Veteran Business Enterprise certifications. The Town of Waterford, Connecticut is bidding removal and replacement of a ductless split air-conditioning system serving its Community Center IT/Data Room under IFB26010, with bids due October 13, 2026 and Connecticut prevailing wage rates applying. The California Department of Transportation has issued two related water-testing solicitations for HVAC hydronic systems across nine counties (most recently IFB Model 22A1352, bids due September 8, 2026). The Utah Transit Authority issued an RFP for comprehensive overhaul and modernization of 82 HVAC units on 38 Bombardier Bilevel commuter rail vehicles (RFP 2604043TD, proposals due May 25, 2026), requiring microprocessor-based control system modernization, refrigerant conversion to R-407C, and two-year post-installation warranties.