Category: Technical

Refrigeration Technical

How to Test a Single-Phase Compressor (Without a Wiring Diagram)

Compressor testing for beginners
3 min read

Still guessing which compressor terminal is which? Don’t worry — whether you’re an HVACR technician or a hands-on DIYer, this step-by-step guide will show you how to test a single-phase domestic refrigeration compressor — the right way — even if you don’t have a wiring diagram.

Refrigeration Technical

Superheat vs. Subcooling: Which Is Better for Measuring Refrigerant Charge in Refrigeration Systems?

Refrigerator repair
7 min read

When it comes to maintaining refrigeration systems, one of the most critical factors is ensuring the correct refrigerant charge. Without proper charging, the system’s efficiency, performance, and lifespan can be significantly impacted. Two key concepts often debated in the refrigeration industry when it comes to measuring refrigerant charge are superheat and subcooling. Both methods are important, but each has distinct applications, strengths, and limitations. This article will explore the differences between superheat and subcooling, how they work, and which is better for measuring refrigerant charge in refrigeration systems.