This module focuses on field activities required to prepare systems for functional performance testing. Participants will learn how to perform system assessments to identify visible deficiencies, collect nameplate and operating data, and document existing conditions. The course explains the purpose and structure of pre‑functional testing, emphasizing proper data collection and verification of installation and startup activities. Additionally, the module reviews the identification and execution of quick fixes during Retro‑Commissioning and outlines key steps in system setup, including verification of equipment startup and control system readiness.