The SOW required our team to convert the existing pneumatic HVAC controls to Direct Digital Controls (DDC) in 11 buildings at Joint Base San Antonio, Randolph, Texas. Our team was responsible for the design of the new DDC system, demolition of the existing controls, installation of the new DDCs and the commissioning. The new DDCs are a significant upgrade that provides building occupants with enhance climate control and measurable energy savings similar to USGBC LEED requirements.
We conducted an existing conditions survey to determine the best approach for performing the SOW in each building. Then, our team designed the DDCs in compliance with American National Standards Institute (ANSI) and American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE) Standards as well as uniform building code requirements. Our Mechanical Engineer developed the design and submitted preliminary designs following a 35%, 65%, 95%, and final design process. With the design approval, our personnel followed a detailed construction work plan to demo existing infrastructure and install the new DDC system. Our HVAC mechanics, electricians, and plumbers performed the work. Our Mechanic Engineer performed the commissioning of the new DDC system in each building and provided training for the local operations and maintenance personnel.