Renovation of a municipal facility in Alexandria, Virginia. Working plans call for the renovation of a municipal facility.

1. Task 1: Chiller Plant Upgrades a. Base Bid: Replace chillers, chilled water pumps and isolation valves. Upgrade the chilled water side of the plant to a variable primary system type with properly sized pumps, bypasses, DDC controls, and accessories. Demolish glycol system and plate and frame secondary loop heat exchangers and associated pumps. c. Bid Alternate: Provide variable speed screw chillers instead of centrifugal magnetic bearing chillers. c. Bid Option: Replace condenser water pumps and associated valve trains. 2. Task 2: Lighting System Replacement: This will include existing lighting replacement with LEDs and a new full occupancy and daylighting controls system throughout the building, and new conduit and cabling where required. The building is 536k SF and has standard courthouse, administration, and building maintenance areas of use. The new system is targeted for a deep dive energy reduction of 40% using new settings according to the Energy Analysis Dept at Berkeley National Laboratory. a. Replacement and improvement of all interior building lighting systems. Includes demolition and installation of conduit and conductors for lighting. b. Bid Option: Replace garage and exterior lighting system. 3. Task 3: Controls Upgrades: A new secure BAS system that replaces the obsolete existing one and adds/replaces all end devices, air and water side controls on AHUs and VAVs, and other metering devices that increase the efficiency of the building. Devices include but are not limited to sensors for temperature, humidity, static pressure, carbon dioxide, differential pressure, airflow measurement, control valves, actuators, freezestat, etc. a. Base Bid: Provide upgraded non-proprietary native BACnet control components with proprietary Tridium Niagara Framework and front end (with native BACnet driver) control components. Provide control devices, programming, and graphics for the chilled water plant and AHUs 1 thru 20. b. Bid Option 1: Provide control devices, programming, and graphics for all fan powered terminal boxes. a. Bid Option 2: Provide control devices, programming, and graphics for lighting controls, RTUs and ACUs. b. Bid Option 3: Provide control devices, programming, and graphics for electrical panel metering and all exhaust/ventilation fans.