There is quite often a payback for commissioning services, but this can vary greatly between projects. The payback can be fast when the commissioning process identifies system inefficiencies, such as excessively open outside air dampers, incorrect equipment scheduling, or misprogrammed lighting control systems.
Yes. Commissioning can identify installation deficiencies, such as loose wires, rapidly cycling equipment, or pumps or fans running at higher than intended speeds. These types of deficiencies may not cause failure during the first year of operation but will increase the wear on operating equipment, potentially making them fail after the warranty period, and accelerate the speed at which equipment wears compared to its typical lifespan. Correcting these deficiencies on Day 1 provides the owner more reliable long-term operation.
The commissioning agent helps guide the entire commissioning process and is a third party who functions as an advocate for the owner. While the general contractor and his/her subcontractors are an integral part of a successful commissioning effort, they may not have the specialized experience needed to validate the performance of complex integrated systems, and they may otherwise be incentivized to finish the commissioning process as fast as possible in order to move onto the next project.
Retrocommissioning, or tuning, is a process whereby existing buildings and their systems undergo a full commissioning process to verify that the systems are functioning as intended. Retrocommissioning is often intended to solve problems with existing systems, such as comfort issues, high utility costs, or excessive maintenance.
Retrocommissioning is generally conducted after a building has been in service for at least a year but may be conducted on any existing building even if the occupancy is much longer than a year. In fact, older buildings may have extra benefit and shorter payback from the retrocommissioning process as it can identify valves, dampers, or other components that may have failed or fallen out of calibration but have not been identified by the building’s maintenance staff.
Systems monitoring is a process that monitors and evaluates the performance of an existing building and provides recommendations to change the operation of the building with the goal of improving utility costs, maintenance costs, and occupant satisfaction. We provide tuning recommendations, which are ranked based on the projected level of improvement they would provide.