Z2DA--657A5-21-401, Construct New Campus Chiller Plant, MRN

The Department of Veterans Affairs Veterans Health Administration, Veterans Integrated Service Network 15, seeks construction of a new campus chiller plant at Marion VA Medical Center in Marion, Illinois, with proposals due August 31. No set-aside is used.

Place of performance is 1501 West Main Street, Marion, Illinois 62959. The 9,574-square-foot facility (7,453 SF first story, 2,121 SF mezzanine) is classified as Industrial occupancy, Type II (000) construction fully sprinklered and must comply with NFPA 101 Life Safety Code, the 2024 International Building Code, and the VA Physical Security and Resiliency Design Manual, with the exterior envelope designed for blast resistance meeting VA security standards.

Mechanical scope encompasses three 500-ton water-cooled chillers with York YK centrifugal compressors using R-513A refrigerant, three Marley NC8410 cooling towers with 500-ton nominal capacity each, six chilled water and secondary hot water pumps with variable frequency drives, two air handling units (8,000 CFM and 3,500 CFM), three variable volume air terminal units with electric reheat, four exhaust fans, two gravity roof ventilators, five electric unit heaters, and two wall-mounted split-system AC units. Electrical infrastructure includes a 2000 kVA transformer with 480/277V distribution, new switchgear configured as U-49 with 800A main service and bypass isolation switches, multiple automatic transfer switches for generator redundancy, and integration with the existing 2450 kW generator set. Fire suppression comprises a wet pipe sprinkler system with light hazard areas limited to 225 square feet per sprinkler at 0.10 GPM/square foot density, ordinary hazard areas at 0.15–0.20 GPM/square foot density, and extra hazard areas at 0.4 GPM/square foot density. The project is divided into three sequential phases: Phase 1 (new chiller plant construction while existing Building 49 remains operational), Phase 1B (parking site work), and Phase 2 (demolition and relocation from existing chiller plant). NAICS code is 236220, Commercial and Institutional Building Construction. PSC code is Z2DA, Repair or Alteration of Hospitals and Infirmaries.