UNSPSC 40101724: Adsorption chiller

A chiller that forms a continuous refrigeration cycle by alternately adsorbing and desorbing in a number of independent adsorption towers by using the exothermic and endothermic phenomena caused by the reversible reaction between the adsorbent and the refrigerant.

UNSPSC 40101724 Adsorption chiller Commodity code describes equipment that state and local governments rarely procure directly—the recent opportunities block shows no solicitations for absorption or adsorption chillers, absorption coolers, or related thermally-driven cooling equipment. Instead, the code sees minimal or no recent activity across state and local markets when searched by its Commodity-level designation.

The recent opportunities posted under this code span HVAC system components, replacement units, maintenance services, and capital plant upgrades across Texas (TDCJ, HHSC, Williamson County), Florida (Hillsborough County, Clay County), Georgia (Hall County, Atlanta BeltLine, Department of Driver Services), California (Los Angeles Superior Court), Oregon (Portland Air National Guard Base), Mississippi (Hancock County), Pennsylvania (Montgomery County), Connecticut (Norwalk Public Schools), Missouri (Parkway School District), Illinois (Sheridan Correctional Center), and national cooperative purchasing vehicles—but these solicitations target packaged HVAC units, split systems, air handling units, variable frequency drives, refrigerants, chiller plant modernization, and maintenance of conventional mechanical cooling systems, not adsorption chillers. The code's abstract name does not align with the actual procurement activity tagged to it. When an opportunity references "chiller" or "chilled water system," it typically means conventional vapor-compression or centrifugal systems serving building-wide hydronic loops, not thermally-driven absorption or adsorption units that would use waste heat or solar thermal input. The mismatch suggests either miscoding at the issuing-body level or that the commodity code is reserved for occasional future use rather than current state and local demand. Pursue this code only after confirming the specific equipment class your target customer actually needs; the recent record offers no actionable signal of market activity in adsorption cooling equipment at state and local level.