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Moving Heat Quiz October 7, 2021, 10:00 pm
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Why (and When) Do We Need Defrost?
Why Defrost? Let's start with the basics and move on from there. Defrost is necessary when the coil temperature drops below 32°F. Defrost can be as simple as turning the compressor off for a period of time or as elaborate as reversing the flow of refrigerant for the whole system or just parts of the […]Read more
What Causes Dirty Sock Syndrome?
I'm not sure who first started calling evaporator coil odors “dirty sock syndrome,” but I really wish they hadn't. Nowadays, every tech out there can't help but categorize every odor from the system as “dirty sock syndrome,” and customers just LOVE to hear that they have a “syndrome” named after a dirty locker room smell. […]Read more
Basic Refrigeration Startup & Commissioning
Let's take a walk through the startup and commissioning procedure of a conventional or “single” refrigeration condensing unit. We’re going to start with a unit that is fully piped in and has been pressurized for leak and strength testing. For brevity, we are going to assume a basic familiarity with industry standards, company and customer […]Read more