HVAC Relay Wiring Diagram

Learn how relays work. We'll look at different types, working examples, relay schematics and testing procedures. https://youtu.be/Rnly4IB69MY https://youtu.be/MI_YGxJ1pjY 00:00 Introduction 00:27 Relay in Action 01:15 Relay schematic explained 04:22 Fan Board Relay Explained 07:25 Relay Diagnosis

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