First Company Air Handler Wiring Diagram

By | October 24, 2020



The Beginner's Guide to Understanding First Company Air Handler Wiring Diagrams



For the novice or inexperienced homeowner, understanding the wiring diagrams for a First Company Air Handler can seem like an impenetrable task. That's why we've put together this guide: to give you a comprehensive overview of air handler wiring diagrams, including an explanation of the symbols typically used and how to troubleshoot any issues. After reading through this guide, you will have all the information necessary to understand air handler wiring diagrams and safely work on your AC system.

Air handlers are components used in an AC system to distribute thermal energy throughout a home or other building structure. In order for the system to work properly, the wiring diagram for the air handler must be understood. Wiring diagrams are essential to avoiding electrical wiring mistakes and malfunctions, so read on to learn how to interpret one.

What is an Air Handler Wiring Diagram?



An air handler wiring diagram provides a valuable reference when installing, replacing, or repairing wiring components within an AC system. This diagram outlines the wires connecting the various components to the main controller. By studying the wiring diagram, it is possible to ascertain where each and every line is heading and the components they power. In addition to providing an easy reference for repairs, air handler wiring diagrams help ensure that low voltage circuits are installed and configured correctly so that proper electricity distribution is maintained.

Symbols Used on Wiring Diagrams



Interpreting a wiring diagram successfully requires a knowledge of the symbols common on diagrams. The most fundamental of these are schematic diagrams, which feature generalized illustrations rather than precisely-drawn schematics. For instance, the power supply icon represents the entire circuit and its two nodes, with arrows inside signifying the flow of current from one node to the other.

Below is a list of some common symbols found on air handler wiring diagrams:

  • Nodes/ Junction Points – circles represent circuit points of divergence and convergence.

  • Circuit Components - rectangles portray electrical components, such as capacitors, resistors, and inductors.

  • Voltage Sources – diamonds signify sources of electricity.

  • Grounds – squares symbolize a grounded connection.



Troubleshooting and Safety Tips



When performing any type of maintenance on your air handler wiring system, be sure to adhere to standard safety procedures. Always wear protective clothing and equipment, such as gloves, goggles, and a face mask, to avoid direct contact with potentially hazardous electrical currents. Additionally, ensure all components are properly rated and installed by a certified electrician. When troubleshooting, use a multimeter to test a circuit before messing with any wiring. This will allow you to identify and isolate the problem instead of making sudden changes that can result in dangerous shocks, fires, or structural damage.

Conclusion



Understanding air handler wiring diagrams is important for those who need to work on or repair their AC systems. This guide has provided a breakdown of common symbols used on wiring diagrams, as well as some general advice on safely working with and troubleshooting air handler wiring. Now that you know what to look for, you'll be better equipped to make informed decisions about maintaining and improving your AC system.


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