What is the purpose of using an amp meter in HVAC systems?

The primary function of an amp meter in HVAC systems is to measure current, which is the flow of electric charge through a circuit. In HVAC applications, monitoring the current is crucial for verifying the operational efficiency and diagnosing issues within electrical components such as motors, compressors, and fans. By measuring the current, technicians can ensure that systems are operating within specified limits, detect potential overloads, and identify maintenance requirements. Deviations from normal current readings can indicate problems such as motor failure, blockages, or other electrical issues, making the amp meter an essential diagnostic tool in HVAC maintenance and troubleshooting.