Taco Switching Relay Installation & Troubleshooting- Diagnosing Defective Board

Описание: Welcome to another Mikey Pipes HVAC training video! In this in-depth tutorial, we tackle the process of wiring a Taco SR504 or SR503 four-zone switching relay to a US Boiler Burnham Alta system, all while diagnosing a tricky no-heat service call. Whether you're an HVAC professional or an apprentice, this video is designed to provide hands-on, step-by-step guidance for troubleshooting and wiring Taco switching relays.

In today’s video, you’ll learn:
How to wire a Taco SR504 or SR503 switching relay to a boiler.
Understanding the components like RH, W, XX, and TT terminals on both the thermostat and switching relay.
Troubleshooting a no-heat issue, including a dead relay, faulty fuse, and control board problems.
The importance of proper wire connections, continuity checks, and power testing during installation and troubleshooting.
Best practices for ensuring your Taco switching relay setup is ready for reliable operation in residential or commercial HVAC systems.

This video is perfect for HVAC professionals and apprentices looking to improve their knowledge of Taco relays and troubleshooting. Share it with your team or colleagues, especially if you're dealing with similar issues on the job!

👉 If you're based in the Long Island or NYC metropolitan area and are interested in hands-on HVAC training, check the description for upcoming open enrollment at The Pipe Doctor Home Services training facility.

🔧 **Tools & Gear Used in This Video**:
Taco SR504 Four-Zone Switching Relay
US Boiler Burnham Alta (Tankless Combi)
Volt/Continuity Meter
ICM518 Surge Protection Device

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