3-ATTACHMENT D Compressor and Dry Tanks List.xlsx

This is an asset inventory list for air compressors and dry tanks at George Mason University's Facilities Department in Virginia, created in support of a Request for Proposal for Air Compressor Maintenance & Repair Services. The inventory documents 121 air compressors and 76 air dryers distributed across multiple campus locations including the Fairfax Campus, Science and Technology Park Campus, Arlington Campus (Mason Square), and an off-campus facility. The compressors range from 0.16 horsepower to 50 horsepower, with most units classified as HVAC equipment and systems. The equipment includes control air compressors, medical air compressors, instrument air compressors, and dry suppression compressors for fire sprinkler systems. Manufacturers represented include Quincy, Gardner Denver, Atlas Copco, ELGI, Curtis, Champion, Powerex, and Speedaire, among others. The air dryers range from 1 CFM to 200 CFM capacity and are supplied by manufacturers including Hankison, Gardner Denver, Keltec, SPX Flow, and Zeks. Most equipment has been in service since the 1960s through recent installations in 2024, with the majority classified as "Available" and in active service.

The asset inventory indicates significant capital investment in compressor and dryer infrastructure across the university's facilities, with equipment distributed strategically to support HVAC systems, fire protection, laboratory operations, and instrument air requirements. The prevalence of aging equipment, with many units dating to the 1970s-1990s, suggests substantial maintenance and repair needs that would justify the university's competitive procurement for specialized maintenance and repair services. The wide variety of manufacturers and models reflected in the inventory necessitates vendor expertise across multiple equipment platforms to ensure effective preventive maintenance, emergency repairs, and equipment performance optimization.