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Maplewood Police

Re-commissioning a chiller to solve operational problems

Because of operating problems with the chiller serving the police headquarters building, we were hired to test the system. We performed installation inspections and functional testing of the sequence of operation for the existing two 50-ton chillers, the chilled water system, the variable air volume (VAV) boxes, and two air handling units located on the roof. Our re-commissioning goals were twofold: we first wanted to assess how it was currently operating and then identify the deficiencies which were causing the operational issues.

We tested the system and determined that the chilled water control bypass valve was not operating properly, causing the chiller to short cycle.

We provided detailed recommendations as to how to improve operations and energy efficiency.

Project Type
Maplewood, NJ

Project Services


Commissioning of a building that has already been commissioned.