❄ Other Videos For Reference: Top 5 A/C Problems: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GOXgdnRB840.html Complete A/C Troubleshooting Guide: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wzAA4dlp_70.html How to Clean Condenser Coil: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-pzwOvgjwm_Q.html How to Replace a Capacitor Full Guide: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9ZGfvC-PMWU.html How to Replace a Contactor: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qHZc9wWAF4c.html How to Replace Condenser Fan Motor: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gGFTd2dmgxg.html How to Replace A/C Control Board: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hijUExXrcm8.html How to Replace a Thermostat: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1mJkjrwxdP4.html How to Program a Thermostat: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-uun8HJhM3h4.html How a Thermostat Works: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Z4T9H-6VPtI.html How to Check Freon Level: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-dExFtP-nXTw.html How to Wire A/C Condenser Unit: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-KCanZEsLVEI.html How to Order Correct HVAC Parts: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-faCno8-vRnw.html How to Read A/C Wiring Diagram: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-I-sB4GIlbl4.html How an Air Conditioner Works: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-cRnzYJ4qmWE.html When Should You Replace A/C: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Z7vUOySOWbM.html 15 Air Conditioner Maintenance Tips: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-pBBnXHse-T0.html Should You Get an A/C Inspection: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JqNsEzb__qs.html
Specifically, I am interested in this one: Refrigerator Maintenance. What, if anything, should a person do to maximize functioning/longevity of their fridge? Should you restart every so often? If so, how and how often?
Disclaimer: anyone watching this is already in the category of not a dummy. 😊 I added the dummy part to the video title simply to stress that this is not a highly technical video.
I have to say this is the best explanation of how air conditioning works put into layman's terms I have ever heard. You truly have an ability that most don't. Thank-you for taking the time to explain this to people. You have undoubtedly helped many. You got my subscription.
We stumbled upon your channel last month when looking for installation info on a Honeywell thermostat and I was blown away by your content and selfless videos. Thank you for consistantly helping the masses and explaining everything in terms that all can understand.. Much thanks again👍
to some Folk that is still confused - You cannot interchange words “heat up” with "temperature rise”, and this is a big dirty secret of HVACing. You can increase the temperature of any substance by 1) giving it actual heat; 2) by compressing it (rising its pressure). In the later case, you don’t give it any heat at all, by the temperature goes up. After a house, the freon-gas has low temperature but lots of stored heat in it. Because it is cold it cannot give this heat out to the outside air. You must somehow increase the freon-gas temperature while not giving it any extra heat. This is done by compressing it: pressure is up, and so is the gas temperature. Now, when the freon leaves the compressor, your freon is much hotter that the outside air and it still has all that stored heat, which it got from your house. Because it is hotter that the outside air, it will give this stored heat to the outside air. And it will become liquid with the temperature about that of the outside air. Remember this. Now, this liquid goes back to your house. But your house is cooler than this liquid because the house temperature (under normal operation of an VAC unit) is less than the temperature of the outside air. So, the liquid cannot take any heat from your house. What do you do? You decompress the liquid, and it will become vapor/gas. You continue to decompress (that is why your have that metering device) and that freon-gas becomes cooler and cooler, and its temperature drops below the house temperature. At this point the house heat can flow into that vapor/gas. So, observe an interesting situation, the gas gets colder because it is decompressed, but because it is cold, the heat from house flows into it (so if a decompression rate is higher than the heat flow rate, your freon will take heat but it will still get cold. Ain’t that fun?). In other words, the freon takes heat from your house and stores it, and … goes back to the compressor. This vicious cycle of heat transfer and pressure drop/rises repeats and repeats. Ho!
So, you don't change the temperature, you change the pressure. If you want a higher temperature, increase the pressure using a compressor pump. If you want a lower temperature, decrease the pressure using an expansion valve.
This video is awesome. I never knew exactly how an ac worked until now. I only a vague idea before this video. That, which you spoke of, makes all kinds of sense. Thank you very much. Thank you.
I’ve been binge watching HVAC/R fundamentals/basics to get myself into the HVAC field and know a bit more than I did, I am forever grateful for videos like this, thank you!
I am in a HVAC class and was struggling to catch on to stuff so started looking for videos just for some extra clarification and this was really helpful!!
This is the best video I've seen explaining how air conditioners work, I think because he mentioned the physics principle that heat always travels to the cold. So the heat in your room travels to the evaporator, and the heat in the condenser travels to the outside air. One thing I'm wondering about is how those units that are outside the house are protected from the rain and snow? What stops the rain from destroying the outside units?
Got here by accident- was trying to see if it's OK to run the AC and the heat inside my CAR. Drove quite aways to a friends' house during really cold weather, and my defroster couldn't keep up this time, it was so cold. Have used the AC before to get rid of the fog, but this was actual ICE forming. Couldn't figure out the proper way to prevent while I was driving, but safely home wanted to look it up. Unfortunately, the explanations I've read so far, were not well-explained as you did here. I now have a better grasp on it, before I had none. NIce video!
Hi, Jay! This is Jermey McGuire. I love learning new things everyday! Like how a central air conditioner works. I get curious. And want to know how a central air conditioner works, you did great explaining how a central air conditioner works I love watching central air conditioning repair videos on RU-vid.” And how a central air conditioner works, I find it very interesting!! I Love You Jay!! 🫶🏻🤗🤗🤗🤗
Except that it is over simplified! The functions of the compressor and evaporator are exactly what their names suggest. The compressor compresses the air and with the help of the condenser turns the freon into the liquid form. In this processor heat is dissipated. The fan sucks out this hot air created by the compression from around the compressor because you don't want the compressor to overheat. In the evaporator this liquid absorbs the heat from the surrounding and evaporates thereof creating cold air around the coil.
awesome easy to understand video I am going to an HVAC/R trade school soon and your video is just what I need to give me that edge in the gam thank you so much!
More videos like this would be greatly appreciated. I like being able to know and identify things, especially when it comes to repairs and knowing the exact function of each part. Thanks, Jay!
Bro, I'm a 4th year mechanical engineering student and I'm learning more from you than my professors.... I should be paying you for my Advanced Thermo class :)
Just want to say thanks for all your videos! I'm an electrical engineer but I've used your videos to repair my refrigerator (bad starter relay), my furnace (no inlet pressure on the pressure switches due to cracked hose), and installed a best thermostat. Really goes to show that practical knowledge beats theoretical in the real world!
You have quite the knack for explanations and teaching in a learnable way! Thank you for the videos. Do you have a video in regards to how to check a compressor or testing a relay on an exterior unit?
Thank you!! Yes I believe I have a video on both of those topics: How to Check a Contactor: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-YCygHajsW34.html How to Check a Compressor: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0aAj0iqP95A.html
WOW, great job! Watched twice, got it. Thanks, now how often should refrigerant be checked, how can levels be checked, or does it last forever. Happy I understand Basics 101! Great wife joke/truism below, comfortable learning experience. Thanks again.😊
Thank you, glad it was helpful! Refrigerant should not be checked at all if there is no problems with cooling. I have a video on how to check freon levels where I show how to use gauges and how to read them. A/C systems are sealed which means (in a perfect world) that its meant to last forever, you don't need to top it off occasionally. Its not like gasoline. If the unit is low on refrigerant that means there is a leak somewhere, a break in the seal. Even if you add some more, it will leak back out again. I've seen 40 year old units that have never had a leak and didn't run out of refrigerant or anything, working like champs.
hey, just want to let you know that i knew nothing about my AC and how it works until i binge watched all of your videos last sunday trying to fix mine.. Traced it to a bad transformer with your help. You a much appreciated. Thanks!
I took some A/C courses at the local JC. I understand the air conditioning process, and how it works, a lot better after watching this video than I did after completing the courses. Nice job!
Excellent job Jay! It takes a really good understanding of something to frame a very complex and easily confused process such as air conditioning and boil it down into an easy to understand short presentation. Great job on doing just that. It takes a lot of thought to present what you did vs. a 30 plus minute pitch that is highly technical.
Thank you Holt! I appreciate this comment since you are right on. I found myself stopping and scratching my head multiple times during the filming of this video. Turns out it's not that easy to try to simplify the explanation :) Have a great weekend my friend!!
Hi Jay. Missed your videos. I always pick something up from your videos. the heat transfer and speed of transfer was something I just hadnt thought about. Thanks. best regards
@4:19 NO. The liquid refrigerant leaving the condenser is NOT cold. It's a "hot" liquid at high pressure and then begins to change state as it enters the evap coil. The liquid refrigerant entering the evap coil is 80% liquid and 20% flash gas and at a lower pressure and temperature. The cold liquid refrigerant begins to boil as it picks up heat and finally leaves the evap coil as a lower pressure gas headed back to the condenser.
awesome , thanks, very very educational, 2 thumbs up. I've got a unit that keeps triping the breaker everytime it rains. From watching your other videos, it sounds like i should check the capacitor first. correct?
Very good explanation. Not that it would add to the relevance but I would have also added the fact that when the refrigerant is in the evaporator under (very low pressure), it boils and evaporates very quickly and becomes a gas, and when the compressor compresses the hot gas into high pressure, the refrigerant condenses back into a liquid, which is the point where the enormous amount of stored heat is released into the atmosphere. A compressor cannot compress liquid, it would ruin the compressor if the refrigerant managed to sneak through the evaporator and make it to the compressor still as a liquid. The metering device, orifice tube, or expansion valve not only changes the pressure of the refrigerant from high to low, it is also crucial for changing the liquid refrigerant to a gas.
Why is the inside coil on top of the furnace? Does it turn on the furnace when I turn on the air conditioning in the house? What role does a furnace play in cooling? This is for heating isn't it? What's an air handler? Thank you for great video.
