This comprehensive procedure template outlines the systematic approach for the commissioning and testing of Air Handling Units (AHUs) and Dedicated Outdoor Air Systems (DOAS). It ensures that these critical HVAC components meet design specifications, operational requirements, and stringent safety standards throughout their start-up and testing phases. The document details essential pre-start checks, including thorough unit inspections, electrical connection verification, filter placement, and drain pan clearance. It provides clear step-by-step instructions for the start-up procedure, emphasizing motor and fan bearing checks for proper rotation, vibration, noise, and overheating. The core of the document focuses on the Testing and Commissioning (T&C) phase, detailing the measurement and recording of vital parameters such as on/off coil temperature and Relative Humidity (RH), heat wheel performance, air velocity and volume, motor amperage and voltage, and filter pressure drops. It also covers crucial safety checks like fan section limit switch functionality, emergency disconnection breaker testing, and emergency stop button verification. The procedure highlights the importance of site coordination, proper material storage, and adherence to safety arrangements, including mandatory safety inductions and the use of Personal Protective Equipment (PPE). This template serves as a foundational document for ensuring the safe and effective commissioning of AHUs and DOAS, referencing attached checklists and risk assessments for a complete safety management system. Ideal for HVAC Engineers, Commissioning Engineers, Project Managers, Site Supervisors, and HSE Managers.
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