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Jerry HVAC/R Evacuation Quiz December 15, 2022, 1:03 am
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This article is the second in a 5-part series by Senior Refrigeration and HVAC tech Jeremy Smith. The Ground rules I've spent some time thinking about troubleshooting and the processes and procedures that I use to find problems. Not the “why isn't my air-conditioner running?” problems, but the “Things just aren't quite right”-type problems—the really […]
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Server rooms, sometimes called data rooms, are a somewhat unique situation in the HVAC trade with some special circumstances that should be considered. Here are a few tips for success when working on equipment for these spaces. Note: this article is focused on smaller server rooms that may use conventional or mini-split-type forced air equipment. […]
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The piston (fixed orifice) and TXV (thermostatic expansion valve) are the two most common metering devices in use today, though some modern systems utilize 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; however, their use is not […]
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