Chiller Replacement HVAC Project Documentation

This document set contains engineering drawings and technical specifications for a chiller replacement project at the VAMC (Veterans Affairs Medical Center) Coalesville facility located at 1400 Blackhorse Hill Road, Coalesville, PA 19320-2096. The project, identified as H–300 and H–400, involves the replacement of existing chilled water systems with new equipment and associated HVAC modifications. The drawings include a comprehensive HVAC new work plan showing the integration of three new water softeners, updated chilled water piping configurations, and modifications to existing mechanical systems. The project documentation incorporates detailed technical specifications for multiple components including water chillers (identified in specification tables with capacities ranging across multiple units), centrifugal pumps for chilled water circulation, hydronic flow measurement stations, and air separator units designed to remove air from the water system.

The technical drawings provide detailed schematics for critical system components including a horizontal split-case pump detail, electric chiller piping diagram, air separator detail, and chiller end detail configurations. Supporting documentation includes equipment schedules for water chillers, pumps, hydronic flow measurement stations, and air separators, along with electrical abbreviations and control notes. Electrical notes specify that all starting, bypass/soft, and control devices must be charged with an appropriate control type as indicated in the schedules, with all control wiring provided by the electrical contractor. The project scope encompasses complete mechanical system modifications necessary to support the new chilled water equipment, with coordination required between mechanical and electrical trades for proper system commissioning and operation.