1.A. Drawings.pdf

This document is a set of construction drawings and specifications for a Facility Humidifier Replacement Project at the Minneapolis Air Route Traffic Control Center in Farmington, Minnesota, issued by the Federal Aviation Administration under the Department of Transportation.

The project involves the replacement of electric steam humidifier units in various AHU (air handling unit) locations within the facility. The drawings provide detailed mechanical plans, including HVAC control wing partial upper attic floor plans for both demolition and new work phases, mechanical room floor plans, basement floor plans, and comprehensive piping and control diagrams. Key components specified include the removal and replacement of existing electric steam humidifiers with integrated controls, condensate piping, steam lines with insulation, water supply connections, drain piping, and associated control wiring. The electric steam humidifier schedule identifies two humidifier units (HU-209A and HU-209B) with specific capacity data, electrical service requirements, and known acceptable sources. The project includes reconnection of humidifiers to the building automation system, replacement of water filters, installation of new condensate drains with insulation, and coordination with existing HVAC equipment. Construction notes outline the general contractor's responsibilities for coordinating work, managing utilities, fabricating and soldering copper piping, installing humidifiers according to manufacturer specifications, and ensuring proper testing and commissioning of all systems before operational startup.