1. Provide and install one (1) Trane Ascend ACS215 (or approved equal), air-cooled scroll chiller, 460V/3-phase, with standard ambient controls and factory controls, fused disconnects. 2. Rigging & Crane: Provide all rigging, road closures (if needed), and lift plans. 3. Piping: Demo existing CHW piping and valves; provide new piping as required by new chiller connections, butterfly valves, insulation with aluminum jacket, flow switch, thermowells, PT ports, etc., as shown by detail in appendix. Maintain or improve service clearances. 4. Hydronic Cleaning & Fill: Drain, chemical clean/flush, refill with treated water to match existing corrosion inhibitor program. 5. CHW Flow & Balancing: Provide Test and Balance (TAB) to commission the design flow of the chiller and chilled water pump. See §6. 6. Controls/Interlocks: Integrate chiller enable/disable, safeties, and points with existing BAS where applicable. Provide a local operator interface.