HVAC-R Symbols
HVACR Symbols

HVAC symbols in electrical and electronic schematics are used in the design of the printed circuit board or wiring diagram of the air conditioning system. If you would like to troubleshoot the system which is not functioning well, getting a manual and the circuit diagram of the system is necessary.

Most of the circuit diagram or schematic diagram have components of which the symbols are quite universal in nature with the exception of some components which may vary slightly from between Europe, North America and the rest of the world.

Frequently Asked Questions

Capacitor is used to store electric charge. There are two kinds of capacitors that are normally used in HVAC-R trade field: motor run capacitor and motor start capacitor.

Compressor is a main component used to change low pressure refrigerant to high pressure refrigerant.

A contactor in HVAC-R is basically a switch that is located in power supply location to connect power needs.

Understanding the function of each individual component will help you to make an informed decision as to the problem that you are facing. Here are some of the commonly used electronic components and related schematics in HVAC.