Cx Plan & Issues Log Flashcards

Which Cx Plan section governs how the CxA will handle a contractor's request to witness a functional test without the specified test instrumentation?

Answer: Test instrumentation and calibration requirements

The test instrumentation section of the Cx Plan specifies required equipment and calibration standards, giving the CxA authority to reject tests conducted without compliant instruments.

An Issues Log shows 12 open items at substantial completion. What should the Cx Plan specify regarding these items and certificate of occupancy?

Answer: Critical and life-safety issues must be closed; non-critical items may be tracked through the warranty period with owner approval

Best practice and most Cx Plans require that safety-critical issues be resolved before CO, while non-critical items can be carried as open with an agreed resolution schedule.

How should the Cx Plan address commissioning of tenant fit-out systems in a base-building project?

Answer: Define the interface points between base building and tenant systems and specify who is responsible for commissioning each zone

The Cx Plan must identify base-building/tenant system interfaces and clarify commissioning responsibility at each boundary to prevent gaps in coverage.

A functional test reveals an AHU fails to achieve design airflow. The CxA logs the issue. Which Issues Log data field most directly supports root-cause investigation?

Answer: Issue category (e.g., installation, controls, design)

The issue category (installation, controls, or design deficiency) directs the investigation toward the most likely cause, streamlining root-cause analysis.

What is the purpose of a 'Cx Plan Executive Summary' included at the beginning of the document?

Answer: To provide project leadership with a high-level overview of commissioning scope, schedule, and key contacts without reading the full plan

The Executive Summary gives owners and project executives a concise overview of commissioning objectives, scope, and contacts, enabling informed decisions without reading the entire plan.

When re-testing a system after an issue is corrected, what should the CxA reference to ensure the retest is conducted consistently with the original test?

Answer: The original functional test procedure used during the initial test

The CxA must retest using the same functional test procedure to ensure comparable conditions and verify that the correction actually resolves the original deficiency.

Which of the following best describes the relationship between the Cx Plan and the Commissioning Specifications?

Answer: The Commissioning Specifications define contractor obligations in the contract, while the Cx Plan details how the CxA will execute and manage the process

Commissioning specifications are contract documents binding the contractor, while the Cx Plan is the CxA's management tool describing process execution — both are necessary and complementary.