Commissioning Management
Commissionability Review
Produce a commissioning programme for the building services that identifies the commissioning tasks and their durations.
The tasks are linked together in a logical sequence to identify the path of least resistance through the project.
Coordinate the commissioning activities with the construction milestones to improve the project work flow.
Provide regular updates of the programme to identify slippage and improvements.
Commissioning Plan
Produce a commissioning plan with the assistance of the main contractor and specialist sub contractors to describe how the commissioning work will be undertaken.
This will include pre-requisites, interfaces, required information, standards applied, commissioning procedure and test sheets to be used.
Commissioning Tracking Document
A comprehensive data base of the equipment to be commissioned will be produced.
This will be used to track the various commissioning activities for each item or system, such as installation complete, pre-commissioning, commissioning, test documentation and acceptance
status.
The tracking document is a simple but powerful tool to easily identify the status of the commissioning activities.
Regular updates will be provided as part of the commissioning report.
Site Observations
Attending site during the services installation period to check for commissionability, e.g. valves installed in the correct locations.
We will also comment on access for operations and maintenance.
Our observations will be recorded on the tracking documents.
Note that this review does not replace the construction monitoring service required by the design team.
Witnessing of Commissioning
When a specialist contractor has completed a pre-commissioning or commissioning activity the associated test documentation will be submitted for review.
The commissioning manager shall check the documents for completeness and correctness (it is surprising how often incorrect data is used) and, if satisfied, arrange a witness demonstration.
Typically the commissioning manager shall witness a sample of the offered system to determine if the commissioning has been performed correctly.
If the results from the sample match the recorded values then the witness is generally considered to be successful.
If the outcome of the initial witness is not satisfactory then the sample size should be increased.
Should the demonstration continue to prove unsuccessful then it shall be marked as a failure.
The contractor shall need to re-commission and re-apply for a witness.
Sample sizes tend to be in the region 10-20% of the total system (e.g. if 200 valves are measured then a witness would typically be around 20-30).
This is not a fixed value and the most important outcome is that the commissioning manager has confidence the system has been correctly commissioned and the recorded results reflect the current status.
For some systems, such as life safety systems, we prefer to perform a 100% witness.
Client Training
This is a process that is seldom performed correctly and we consider it unforgiveable.
CxM can help manage the client training process so the operations team understand the building prior to handover.
We also push for draft O&M manuals to be made available as soon as possible to assist in this learning process.
Additional Services
As a commissioning manager we can provide a number of additional services which are often requested:
- Fine tuning input
- O&M Manual review for commissioning items
- Defect Liability Period final inspection
- Producing owner’s project requirements (OPR) and building user guides
- Landlord/Tenant liaison for commissioning
You're in the right place
The Team at CxM Ltd share your passions to achieve well-commissioned, fully functioning and efficient buildings.
If you have concerns around any aspects of building services commissioning, or require the services of an ICA or Commissioning Manager, then please do contact us to discuss further.
We look forward to talking with you.
Many thanks,
Mark and Martin
CxM Ltd