Attachment_4_F1302 Boiler Blueprints.pdf

This document is a technical specification and equipment schedule for a heating, hot water, and cooling system installation at a federal facility. The document contains detailed equipment specifications, piping diagrams, and control system schematics for multiple major components including air-cooled water chillers, boilers, pumps, hydronic expansion tanks, air separators, and duct humidifiers.

The air-cooled water chiller (model 15620A) is specified with three units ranging from 210-274 tons capacity, requiring water-cooled condenser connections and factory-installed options. Two boilers (model 15515N) are specified for the heating system with capacities of 1,100,000 and 1,115,000 BTU/hour. The system includes multiple end-suction and in-line centrifugal pumps for primary circulation, secondary circulation, and dedicated humidification functions, with motor specifications ranging from 3 to 10 horsepower. Hydronic expansion tanks (model 15181) and air separators (model 15181) support system pressure regulation. The duct humidification system uses isothermal steam units with 20,000-25,000 pounds per hour steam capacity. The control system diagram illustrates a dual-boiler configuration with alternating lead/lag operation, flow switches, temperature sensors, and automatic reset capabilities. The hot water piping diagram shows the boiler room layout with circulation loops and isolation provisions. All equipment specifications include electrical requirements, dimensions, weights, and installation notes referencing factory-supplied controls and auxiliary contacts for system integration.