Specs combined_Part10.pdf

This file contains detailed technical specifications for mechanical equipment related to a VA Grand Prairie Utility Upgrade project (No. 549-23-723). The specifications cover two main sections: boiler plant mechanical equipment requirements and packaged water chillers specifications.

The boiler specifications include requirements for fire tube boilers with dual fuel capability (natural gas and No. 2 oil), safety devices, controls, burners, and accessories. Key requirements include ASME compliance, minimum efficiency ratings of 82% for natural gas and 85% for fuel oil operation, and detailed testing procedures. For the water chillers section, specifications cover centrifugal, rotary-screw, and scroll type chillers with capacities ranging from 30-1,250 tons depending on type. Detailed requirements are provided for compressor construction, controls, refrigerants (HCFC-123, HFC-134a or HCFC-410A), sound/noise limitations, and integration with building automation systems. The document includes extensive technical details for construction, testing, and performance requirements for both systems, with specific emphasis on safety controls, efficiency standards, and automated operation capabilities.