Réussir le diagnostic d'un coffret de relayage en défaut Position d’Attente

🛠️ Is your smoke extraction relay control box showing a fault or failing to send the correct feedback to the Fire Alarm Control Panel (CMSI)? In this technical video, we break down step-by-step how to resolve a "Waiting Position" feedback issue on a relay box. This is a classic headache in FASS (Fire Alarm and Safety Systems) and HVAC maintenance, where a simple wiring error or incorrect loop logic can quickly turn into a puzzle. Here is what we will cover in this practical tutorial: 🔍 Problem Analysis: Understand why the waiting position feedback (damper or fan in safety/standby position) is failing. 🔥 Real-World Simulation: We will trigger a live fire detection alarm to observe the relay box behavior and how the contacts switch. 🔄 Reset Procedure: How to properly reset the system and validate the return to the initial state without triggering a fault loop on the main indicator panel (TS). Whether you are a maintenance technician, an electrician, a fire safety system installer, or just curious to understand how mechanical smoke extraction works, this video is for you!