S02 - 07 - VA Hospital Phase 2F - ATC As-Built Drawings.pdf

This document is a set of technical drawings and specifications for a VA HVAC Controls Upgrade - Phase 2F project at the VA Medical Center in Wilmington, Delaware. The project represents a partial submittal that includes Building #17 CLC HVAC equipment controls.

The technical drawings specify the installation and control of multiple Air Handling Units (AHU-1 Main MER, AHU-1 West MER, and AHU-2 East MER) with integrated mechanical and control systems. Key components include pneumatic and electronic control devices that have been replaced with modern Johnson DDC (Direct Digital Control) controllers, including FEC2611 and IOM4711 controllers for sequencing operations. The design incorporates temperature control through sensors (T-1, T-2, T-3) that maintain setpoints via modulating control valves (V-1, V-2, V-3), freeze protection protocols triggered at 45°F with shutdown at 40°F, emergency shutdown/restart functionality via duct-mounted smoke detectors, and constant speed supply fan operation with air flow control. Additional systems include humidifier controls, VAV (Variable Air Volume) box controls for Building #17 with 37 total zones, and chiller and heat exchanger controls with pump management. The sequence of operations details specify manual unit start/stop via DCP (Direct Control Panel) or remote BMS (Building Management System) control, with damper D-1 closing when units are off. The bill of materials identifies specific sensor and equipment components including TE-G315F-1 sensors, MS-FEC2611-0 controllers, and associated expansion modules. All drawings carry a revision date of 12/10/13 to 01/28/14 and are identified as AS-BUILT documentation prepared for VA Medical Center in Wilmington, Delaware.