Replacement of Metabolic HVAC

The National Institute of Child Health and Human Development, part of the National Institutes of Health, is seeking contractors for a specialized HVAC replacement project at the NIH Clinical Center's Metabolic Suites. The procurement involves replacing existing fan coil units and establishing independent heating and cooling sources for three whole-room indirect calorimeters used in critical metabolic research. The project requires installation of a building-independent chiller system capable of maintaining precise temperatures between 16-33°C and humidity levels between 30-50%, with temperature control accuracy of +/-0.2°C to ensure accurate metabolic measurements. Evaluation will be based on technical approach, price, and past performance, with non-price factors weighted more heavily than price, and contractors will be assessed on their capability to provide specific technical services including load calculations, electrical work, and comprehensive HVAC modifications. The solicitation closes on September 15, 2025, at 12:00 PM EST, and due to time constraints, facility walk-throughs will not be conducted.

This procurement is unrestricted with no set-aside designation and falls under NAICS code 238220 for Plumbing, Heating, and Air-Conditioning Contractors with a small business size standard of $19 million. The contract performance period spans from September 30, 2025, to September 29, 2026, with work to be completed at Building 10, 5th Floor, West Wing CRC at the NIH facility in Bethesda, Maryland. The project involves installing three new fan coil units (one per metabolic chamber room) that must maintain constant air circulation of over 300 CFM at specific sound levels, along with a new 3-ton chiller system with associated piping and insulation. No incumbent contractor information or specific award values are disclosed in the available documentation. The solicitation number is 75N94025Q00193, and the contract will be awarded to the most advantageous responsible offeror based on the stated evaluation criteria.