Air Handling Unit, DDC Optimization, and Operation & Maintenance Training

Project Background

Market: Government

The Naval Surface Warfare Center, Carderock Division (NSWCCD) serves as the United States Navy’s state-of-the-art research, engineering, modeling and test center for leading edge technology development and support for ships and ship systems. In 2013, Naval Facilities Engineering Command (NAVFAC) installed a 13,000 CFM packaged Air Handling Unit (AHU) with a heat recovery wheel, within building 125 at NSWCCD.

Naval Facilities Engineering Command (NAVFAC) Carderock Building 125

Naval Surface Warfare Center, Carderock Division (NSWCCD)

The Problem

During the initial four-year operation of the unit, NAVFAC engineers identified several issues that, if resolved, would improve their ability to meet their clients’ needs. Some key complaints included not being able to remotely schedule the AHU, not displaying or relaying all critical alarms, and a Graphical User Interface (GUI) that did not provide enough functionality to properly manage the equipment.

Our Solution

CQS proposed a turnkey solution as the prime contractor in response to the issues identified by NAVFAC. Our work included generating a new Sequence of Operation (SOO) based on feedback from NAVFAC staff, updating and enhancing the GUI, adding additional alarms to meet the client’s needs, and integrating the AHU with the client network for monitoring and notifications. We executed performance verification testing, generated as-built drawings, executed operation & maintenance training, and provided a comprehensive warranty on our work.


As BAS subject matter experts, CQS:

  • Provided a turnkey solution that exceeded the client’s expectations
  • Implemented solutions that addressed stakeholder desires, issues, and concerns
  • Effectively communicated and delivered a technically robust solution that solved the client’s problems
  • Established an ongoing relationship with the Navy as result of our performance