How To Check Superheat And Subcooling

How To Check Superheat And Subcooling. Air conditioning technician will use measurement of these properties during troubleshooting and maintenance, to gauge performance of an air conditioning system. This check will determine if your subcooling calculation falls within a proper range.

To calculate subcooling properly, you must use liquid pressure, not discharge pressure. Take the high side pressure and convert it to temperature using chart or gauge. This chart should only be used if the manufacturer's recommendations are not available.

Then take the temperature of the liquid line.

We know this to be the case in systems that have a single speed compressor with a fixed airflow speed at the indoor and. Troubleshooting, heat pump, ac ; Negative superheat goes by another name subcooling and the only way a substance can be in the subcooled range is if it is 100% liquid and has given off additional heat below the saturated (mixed) state. Just like only gas can be superheated, only liquids and solids can be subcooled.