TSS Ductless System at EWR ATCT - Amendment 03

Amendment 03 - Extend Q&A due date to 04/14/26 at 1800 CT Amendment 02 - Provide updated documents for Section J Amendment 01 - Provide site visit information Mechanical ’ Install (3) indoor wall-mounted units, along with all refrigerant and drain piping. ’ Install (1) 6-ton heat pump. Unit to be anchored to exterior concrete wall via on L-bracket steel frame. ’ Coordinate core penetrations through concrete wall for piping, electrical, and drain lines. Installation to include all wall waterproofing. ’ Provide and insulate all refrigerants and condensate piping above ceiling ’ Test and charge system to verify operation. Electrical ’ Install new dedicated 208V, 3-phase power circuit ’ Provide NEMA 4X, 60A non-fused stainless steel disconnect at outdoor unit ’ Provide power and control conduit and wiring to/from all units ’ Penetrate concrete wall. ’ Provide penetration and conduit through roof deck. Patch and flash roof as required to maintain new roof warranty through Carlisle Roof installer. Controls ’ Integrate mini-split system into the existing FAA Schneider Electric EcoStruxure DDC system via BACnet ’ Provide and install one IP-IO module at VAV-17 for coordinated backup cooling enable/disable ’ Submit point list, graphics, and control narrative to COR for approval. ’ Program unit set points, and update AHU-3 supply air setpoints ’ Support commissioning of system to validate operation. Structural & Interior ’ Concrete core penetration for pipes and conduits ’ Provide support framing for all units and steel plates as shown in drawing. ’ Provide support for pipes and conduits. ’ Work to include wall restoration and painting. Site Visit - A site visit is scheduled for 03/17/26 at 3:00pm EST. If necessary, a secondary site visit will take place at 5:00pm EST. If interested in attending, notify the CO at elisha.distler@faa.gov NLT 03/11/26 at 5:00pm CST. Please provide the names of all attendees and limit the total personnel to three individuals per firm.