Z--HVAC Upgrades, Mammoth Cave National Park

The National Park Service SER East MABO office is managing a project to replace 18 HVAC systems across 11 buildings at Mammoth Cave National Park. This firm-fixed-price construction effort is a small business set-aside with an estimated value between $250,000 and $500,000. Work covers facilities including the Ranger Station, Training Center, and various administrative offices. Amendment 0001 established a 180-day performance period from the Notice to Proceed and removed the option year requirement. Proposals are due July 8, 2026. A site visit is scheduled for June 23, 2026, with RSVPs due by June 22, and the deadline for written questions is June 25. The solicitation requires a revised Excel-based price schedule for 18 CLINs, a bid bond (SF-24), a past performance questionnaire, and compliance with Davis-Bacon wage rates for Edmonson and surrounding Kentucky counties. Technical requirements include SEER2 ratings and the use of R-454B refrigerant. This project (PMIS# 352411) covers the replacement of 18 HVAC systems at Mammoth Cave National Park. The work includes removing old units, recovering refrigerant, and installing new equipment that meets SEER2 and R-454B standards. The project involves replacing 18 HVAC systems across 11 buildings at Mammoth Cave National Park under PMIS# 352411. Tasks include refrigerant recovery, installing new line sets, electrical work, duct modifications, and installing Honeywell T6 or equivalent thermostats.