Background

Projects

CONTINUOUS COMMISSIONING AT GSA

PGI provided continuous commissioning services at the GSA Wiley Building in College Park, Maryland. This effort required working closely with the National Capital Region and the building O&M staff to ensure mechanical equipment and systems operated efficiently and the building occupants operated in a comfortable and productive work environment. Over the years, several O&M, energy efficiency and equipment lifecycle improvement opportunities were identified and implemented, including:

• Ensuring optimal AHU economizer operation to enable free cooling by ensuring that the outside air, return air and mixed air dampers operated as intended.
• Identifying leaking chilled and hot water valves on AHUs by analyzing the BAS trend data.
• Implementing free cooling using plate and frame heat exchanger to allow for the chillers to be turned off during favorable outside air temperature conditions.
• Proactively identifying and resolving issues at occupant areas outside the ASHRAE comfort range.
• Ensuring optimal chiller and boiler operating and staging strategy by comparing equipment efficiency at different loads (load curve).
• Ensuring equipment operation matched the building operating plan (BOP).
• Working closely with NCR engineers to identify projects to further optimize facility O&M costs.
• Assisting GSA staff with ION and Modbus metering review and analysis.
• Performing ongoing review of the BOPs to account for change in building occupancy, use and weather conditions.