Author: Admin

Charging by weight, superheat or subcooling — here’s when to use each method and how to charge a system accurately.

P/T charts link pressure to saturation temperature — essential for charging and diagnosis. Here’s how to read and use them.

AC running but not cooling? Here are the common causes — from refrigerant to airflow — and how to diagnose them.

Retrofitting to a lower-GWP refrigerant extends a system’s life compliantly. Here’s a step-by-step retrofit guide.

Finding leaks fast saves refrigerant and ensures compliance. Here are the proven methods engineers use to detect refrigerant leaks.

The wrong oil can wreck a compressor. Here’s how refrigerant and lubricant compatibility works and why it matters in retrofits.

Recovery is a legal must before opening or scrapping a system. Here’s how to recover refrigerant correctly.

Superheat and subcooling are the keys to correct charging and diagnosis. Here’s a plain-English explanation for engineers.

Low refrigerant means poor cooling and potential compressor damage. Here are the signs to look for and what they mean.

Reading refrigerant pressures correctly is a core skill. Here’s how to connect gauges, take readings and interpret them.