The acronym FPTs in the Cx plan stands for what?

• A. Functional Performance Tests
• B. Field Process Trials
• C. Final Project Tests
• D. Factory Performance Tests

Answer: (A)

Functional Performance Tests focus on verifying that all system components operate together to meet the owner's project requirements and design intent under normal operating conditions. In the Cx plan, these tests go beyond simply confirming equipment is installed; they simulate typical and edge-case operation, validate control sequences and interlocks, ensure proper sequencing and operator interfaces, and measure whether performance criteria such as temperature setpoints, airflow, humidity, and energy use are met. Documentation includes predefined acceptance criteria and results, with pass/fail decisions guiding commissioning closure. This differentiates them from factory or final project checks, which don’t validate on-site, integrated performance.