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01 Owner's Project Requirements (OPR)

Why: Purpose

The owner's project requirements (OPR) represent the purpose of the commissioning process.  By definition, commissioning is the process of verifying the owner's project requirements are being achieved throughout the project and into occupancy.  Ideally, the commissioning process follows in parallel with the entire facility lifecycle. 
Due to the technical nature of the owner's project requirements, it is important that your commissioning agent is a licensed professional engineer.  As an engineer, the commissioning agent can better interface with the design engineers to ensure the requirements are clearly defined and incorporated into the design.

What: Included Information

The OPR includes ANY requirement the owner feels is essential to a fully functioning facility to meet their operational and lifecycle needs.   As a short example, requirements may include the following: 
  • Room/ space requirements
    • Room sizes
    • Room types/ function
    • Room orientation/ location
  • Indoor Environmental Quality
    • Temperature limits
    • Humidity limits
    • CO2 limits
    • Ventilation requirements
  • Building Systems
    • System Efficiencies
      • Chiller efficiency
      • Minimum system Delta-T
    • System Operating parameters
      • Chilled Water Supply Temperature
      • Relative Pressurizations
  • LEED requirements 
When establishing performance requirements, it is important to specify metrics which define success.  Simply indicating the HVAC systems will be efficient does not provide enough information to determine success.  Instead, metrics such as kW/ton or Delta-T should be quantified with minimum values. 

When: Project Phase/ Task Timing

 The OPR is required throughout the commissioning process and therefore is the first document to be developed.  It will then become the driver for all other documentation and deliverables in the project.  Without an OPR, the commissioning process is operating blind and with no real direction and means to determine success. 

How: Development Sources

  • Design Charrettes
  • Owner's Design and Construction Standards
  • Applicable Codes and Standards
  • Industry Standards

Who: Team Members Involved

  • Commissioning Agent
  • Owner
  • Tenants/ End Users
  • Maintenance Personnel
  • Architect/ Engineer Team