47161 HVAC – Provide Energy Efficient Upgrades

This solicitation covers a comprehensive energy‑efficiency retrofit of the DEC Region 5 headquarters in Ray Brook, NY. The work includes removal and replacement of existing HVAC equipment with geothermal and water‑source heat pumps, extensive duct and pipe demolition, civil site work (grading, erosion control, stockpile management), electrical upgrades (new panel schedules, lighting retrofits, solar PV installation), and associated construction management, phasing, and safety requirements. • HVAC scope: replace split‑system, PTAC, condensers, boilers; install geothermal loop and water‑source heat pumps; maintain indoor temperature 68‑75 °F during occupied work. • Civil & mechanical scope: demolition of asphalt, concrete, and ductwork; soil stabilization, erosion/sediment control, stockpile handling, concrete work with 4500 psi strength. • Electrical & solar scope: new distribution panels, lighting upgrades, solar PV array layout, inverter installation, and detailed wiring schedules. • Project phasing: multiple work‑area zones with durations up to 12 weeks; coordination required with facility manager; mandatory site‑visit on 9/24/2026.