Minot Air Force Base

Retro-Commissioning Services 

About the Facility

Minot Air Force Base is a U.S. Air Force Installation in Ward County, North Dakota. As part of a collaborative effort with Johnson Controls Federal systems, Sain Engineering Associates, Inc. (SEA) was selected to provide Retro- Commissioning (RCx) to several facilities managed by the 5th Civil Engineer Squadron. The focus of the RCx services included Utility Monitoring and Control Systems (UMCS), Heating, Ventilation and Air Conditioning (HVAC) systems including chiller/boiler systems instalaltion and integration, as well as Supervisor Control and Data Acquisition (SCADA) systems. 


Minot Air Force Base Stats

130k Square Feet (91st Missile Wing)
15 Facilities Assessed (91st Missile Wing)
630k Square Feet (5th Bomber Wing)
9 Facilities Assessed (5th Bomber Wing)

Scope of Work 

SEA served as the Commissioning Authority for this effort and was responsible for leading, planning, scheduling and coordinating the Retro-Commissioning process. SEA coordinated all on-site activities with the Base Energy Manager and the HVAC Superintendent. The team also directed the activities of the field technicians as information was gathered and evaluated, and systems were tested for functionality. SEA made recommendations to the owner regarding Facility Improvement Measures (FIM). 

Johnson Controls Federal System served as Project Manager and provided on-site coordination regarding execution of the Performance Work Statement (PWS) ensuring compliance with Minot AFB procedures. The primary goal of the RCx at the specified buildings was to identify operational and maintenance enhancements that resulted in: 

  • Ensuring systems worked efficiently as designed
  • Improving energy efficiency 
  • Improving occupant comfort 
  • Improving indoor air quality  

The two squadrons that SEA focused RCx work on included the 91st Missel Wing and the 5th Bomber Wing. 

91st Missile Wing 

SEA was responsible for providing RCx on existing equipment including the DDC and HVAC systems, as well as the building envelope for fifteen MAF sites totaling 130,000 square feet. This included the development and execution of functional test procedures and TAB. Final deliverables included a report detailing the results of all testing and noted issues with the site, identifying and recommending priorities for repairs of non-functioning equipment. 

5th Bomber Wing 

SEA was responsible for the RCx plan focusing on the operation of current DDC and HVAC systems at 9 buildings totaling 630,000 square feet. The buildings also included air and hydronic TAB. Final deliverables included a report with Draft Contractor Field Test and Performance Verification Test procedures for government approval. The plan established the framework for testing HVAC equipment after completion of the initial site survey. 

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