The piston (fixed orifice) and TXV (thermostatic expansion valve) are the two most common metering devices in use today, with some modern systems utilizing an electronically-controlled metering device called an EEV (electronic expansion valve). It should be noted that there are other types of fixed orifice metering devices like capillary tubes, but their use is […]

This is ANOTHER series by Senior Refrigeration Tech (and prolific writer) Jeremy Smith. Pay attention to this one, folks. I know rigging and safe lifting practices may be boring to some of you, but it could very well save your back or your life. Disclaimer This article is written by a technician representing his real-world […]

This article is written by a regular contributor, experienced rack refrigeration tech, and RSES CM Jeremy Smith. Thanks, Jeremy. Also, there is a podcast out about what kills compressors HERE. A technique that you can use to diagnose compressor problems and help differentiate them from other possible issues is compressor performance analysis. Manufacturers do extensive […]