Commissioning Process & Procedures Flashcards

Which commissioning phase includes the development of the Systems Manual and completion of seasonal or deferred testing?

Answer: Warranty Phase

During the Warranty Phase, the CxA ensures deferred and seasonal testing is completed, the Systems Manual is finalized, and unresolved issues are addressed.

A functional performance test (FPT) for an AHU would typically verify which of the following?

Answer: That the unit responds correctly to control sequences including economizer, heating, and cooling modes

FPTs verify that equipment operates through all required modes and sequences of operation as specified in the OPR and construction documents.

What is the purpose of the 'issues log' maintained throughout the commissioning process?

Answer: To document, assign, and track resolution of deficiencies discovered during commissioning

The issues log (also called deficiency log) is the primary tracking tool ensuring all commissioning problems are documented, assigned to responsible parties, and resolved.

In the context of building commissioning, what does 'retro-commissioning' (RCx) refer to?

Answer: Commissioning a building that was originally designed before commissioning standards existed and has never been commissioned

Retro-commissioning applies the commissioning process to existing buildings that were never originally commissioned to optimize their performance.

Which party is responsible for correcting commissioning deficiencies found during functional performance testing?

Answer: The party whose work or equipment caused the deficiency

Deficiency corrections are the responsibility of the contractor or subcontractor whose scope of work encompasses the deficient equipment or installation.

What is the typical minimum timeframe for seasonal testing to be considered complete for an HVAC system serving a commercial building in a climate with both heating and cooling seasons?

Answer: Seasonal testing must capture both peak heating and peak cooling conditions

Seasonal testing requires verifying system performance under both peak heating and peak cooling conditions to confirm full operational capability.

During a commissioning scoping meeting, which document should be reviewed to confirm that commissioning scope aligns with project goals?

Answer: The Owner's Project Requirements (OPR)

The OPR defines what the owner expects the systems to do, making it the essential reference for confirming commissioning scope is aligned with project intent.