Basic Refrigeration Circuit
Basic Refrigeration Circuit
The following quiz contains 12 questions that will test your knowledge of the basic refrigeration circuit.
Related Tech Tips
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
Basic Compressor Functions The compressor's job is to circulate refrigerant through the system by means of vapor compression, similar to the way your heart moves blood through your circulatory system. Refrigerant circulation is measured in lbs/min or lbs/hour; this is called mass flow rate—the mass flow rate changes depending on the density of the refrigerant […]
Read more
Photo by Brad Hicks at HVAC in SC Right off the top, let me state something loud and clear: The tool does not make the tech. Let that sink in before you move on. A good tech has a solid understanding of WHY they are doing what they are doing, the basic math of the […]
Read more
Comments
Love this site. GREAT info. I use it and reccommend it to my students.Love the lectures, videos would be cool.
Cliff Krug
HVAC Instructor TN College of Applied Technology @Dickson
Add new reply
Videos are coming. Thanks for the kind words!
Add new reply
Greetings Mr Bryan. Am knew to this site, please can I be trained online, I want to start a career on this field. Please help
Add new reply
In my classes we have a few rotary compressors and they have shiny black accumulators on them. The students call this a drier quite often because our alco display driers look very similar.
38 yrs experience, 20 years of a/c company owner, State of Texas subject matter expert and owner of a/c Training school. Currently under contract to develop a textbook
Add new reply
Thanks Chris! Maybe we can collaborate sometime.
Add new reply
I agree with the videos as well. Also love the podcast. Is a daily listen on the rides in the work van!
Add new reply
Thanks Josh!
Add new reply
I haven’t done any quick quizzes like this since I got my Journeyman ticket 11 years ago.
Made me think back to school. Ha. Good stuff. Thanks. Keep them coming.
Add new reply
Recently started listening to your podcasts. Good stuff. Maybe you could do an episode on those fun carrier/Bryant heat exchangers they were having issues with.
Add new reply
Have to disagree with sight glass question. If you charge past the full sight glass on a cold day the system will be overcharged at higher ambient temperatures with liquid banked up in the condenser and high discharge temperatures. Also once you have charged past a full sight glass you can easily overcharge a system. The low sight glass may be due to flash gas caused by insufficient subcooling in the condenser and liquid line and not low charge,exacerbating the problem, therefore all the answers are incorrect. Also what is a cold control? It must be an American expression. Please be more specific as any control on the low side of the refrigeration system could be called a cold control. I take it you are referring to a refrigeration evaporator or coil thermostat as opposed to a room thermostat.
Add new reply
Love your work. Use alot of your content to try and train our guys
Add new reply
To leave a comment, you need to log in.
Log In