Commissioning
Commissioning (abbr. Cx) is a process of verifying and documenting that the mechanical systems in the building are designed, installed, functionally tested, operated, and maintained to meet projected/designed requirements.
Commissioning is intended to detect mistakes such as improper system operation, missing equipment or equipment that was incorrectly installed or set up, thereby avoiding later occupants’ complaints, callbacks, indoor air quality and thermal comfort problems and premature equipment failures.
Commissioning helps fill the gap between the design team, who are usually not appointed to check such details upon project completion, and subcontractors, who may inadvertently err on key items like equipment settings or sensor locations.
Commissioning helps optimise facility’s performance, reduces operation and maintenance costs, and increases occupants’ satisfaction.
Most important steps in the commissioning process:
- Review of the owner’s requirements (design concept and functional specifications)
- Preparation of a Cx plan
- Preparation of a List of Systems and Functionalities
- Review of proposed equipment selection and implementation solution
- Regular monthly supervision of construction
- Preparation of a Test Plan based on mechanical installations design plans and functional specifications for equipment operation
- Functionalities testing
- Analysis of results and comparison with expected values
- Start-up and confirmation of correct system operation
- Review and approval of drawings of completed works, user manuals, and training plans for O&M staff
- Report on completed Cx
Commissioning process begins already in the initial concept design phase, when the functional specifications of the system are determined. Commissioning then continues throughout all phases of the project. At every design stage design documentation review is conducted. During construction, commissioning team prepares commissioning checklists and leads functional testing of the systems. At the end, acceptance documentation is prepared.
Commissioning Authority or Commissioning Agent (abbr. CxA) is an individual designated by the building owner/developer to organise, lead, and review the completion of commissioning process. The CxA facilitates communication between the owner, designer, and contractor to ensure that complex systems are installed and function in accordance with the project requirements.
At LENASSI we offer complete commissioning for all types of commercial buildings. We can offer:
- ACG and ASHRAE certified commissioning professionals (CxA)
- Commissioning required for obtaining LEED® certification
- Design documentation review
- Commissioning plans & specifications
- Pre-functional checklists
- Functional performance testing & operational validation
- Data logging, analytics, trending evaluations
- Owner Project Requirements (OPR) generation assistance
- Troubleshooting
- Seasonal performance testing
Specifically applicable to existing buildings and systems, we offer:
- Retro Commissioning: Commissioning of existing mechanical systems that have not previously been commissioned.
- Re-Commissioning: Applicable in cases of building use change, operational problems with the systems, pursuit of improved energy efficiency.
- On-Going / Continuous Commissioning: A continuation of commissioning process into the occupancy or operation of the building, aimed at continuously improving systems’ performance.
At LEANSSI we are particularly well suited to conduct commissioning of your systems since:
- We are independent of both your MEP designer and contractor.
- We possess decades of relevant commissioning experience stretching throughout Europe and beyond.
- Because we have proven professional skills and are ASHRAE/ACG qualified.
- Because we possess excellent understanding of HVAC systems and how they operate since we are also design engineers for such systems.
- Because of our expertise in building automation (BMS) which is an indispensable part of any system that is being commissioned.
With our commissioning expertise, you gain confidence that every mechanical system at your facility will perform as intended.
Have a Question?
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Have a Question?
Call us or send us a message and we will get back to you.
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