TSS Ductless System at EWR ATCT - Amendment 02

Description

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.