Replace existing damper configuration with (6) individual Ruskin CD-50 aluminum dampers (or approved equal) per AHU. Each damper will be equipped with “in airflow” style jack shafts for actuator mounting. Contractor shall: • Verify individual damper sizes prior to fabrication or installation. • Provide all necessary sheet metal, bracing, and support for a complete and finished installation. • Demolish and remove existing dampers. Control System Integration Remove existing actuators and control wiring. • Turn over removed actuators to the Owner. • Supply and install (1) Belimo NF24-S actuator per damper (total of 12 actuators). • Mount actuators within the airflow stream on jack shafts. • Install EMT conduit with compression fittings within each AHU for control and monitoring wiring. • Replace control wiring and integrate with the existing Schneider Electric Building Management System (BMS). • Reuse existing control outputs and inputs for damper control and proving. • Update BMS graphics to reflect new damper configuration.
