Nice work. Most people in hvac school have trouble understanding the wiring side of hvac more than anything myself included. I appreciate these videos!
Guys, what are you talking about? I enjoyed watching this video. The guy is national treasure. Explained everything to the details and more. The topic clearly said “ how a basic electric residential HVAC system works” so come on guys…give a man some credit. Thanks!
Thank you so much! I was really confused during my first week at trade school, but now I’m starting to understand things better. Keep up the great work! I’m enjoying your videos and learning a lot from you. 🤟
In most gas furnaces, the blower is the LAST thing to come on. It first has to perform safety checks and light the furnace, then a delay to let the temperature warm up, THEN start the blower so you are pushing warm air into the house instead of cold air the minute it starts.
Really awesome video! Very explained, reminds me back then when my teacher would give all the components and set up everything over and over again. Good times!
Overall this is a BRILLIANT model. Thank you! This is good, VERY good. It would have been better if the Thermostat RWYGC strip was shown and if the Outside Relay 120 VAC white/black wire was shown terminated to the circuit breaker. Same with fan relay. With the black/white going into the hole it just looks like black magic. But sincere thanks!
Great video but the problem I am having is this, I have a Honeywell that has a red, green , yellow, and white. I know red gets 24 volts, the green is fan only, the yellow is cool, and the white is heat? I have a black wire from the load side, and I don’t k ow where it goes. There are two wires to the out side unit red and white. How does that hook up to the inside unit!!!
Love your video. Is there anyway you would be able to do a troubleshooting video on the sequence of operation in diagnosing an electrical issue with the same set up you used?
Very nice explanation. Like the real world on the test board demonstration. When you time it out on the sequencer, it appears to be around 20-30 seconds to heater on after fan on and again 20-30 seconds after heater off before the fan shuts off. Think you are in high gear all day so waiting 20-30 seconds seems like a minute or two to you (-: Unless you cut out some video 😁
I just want to add that if your inside fan motor isn't running the outside condenser want start up for heat or cooling. A lot of times you can go to the air handler and check the fuse at the transformer. It's an easy fix but only if you know to look for it.
Sorry but I've been in the trade for 12 years and this set up never gets across. This was at every school and still in every school. Most people do not understand this set up because they haven't seen it in real world aspect. I wish I can teach a lot of new techs how to check running anps and how to do proper PM'S and learn the sequence of operation so that when they are called on service calls for no heat no cool, they know where to look and what to do after starting the unit and why it happened and if the unit is working properly. This would be good foundation for a tech if taught properly in schools
I'd rather see a furnace or real unit. This OSB rig does nothing for me in the real world. Sorry I must be an idiot cuz I can't learn like this. What the heck does the sequencer do? I need real world application
@fubufb420 I have the same problem, but believe it or not, this is the best way he explained it very well first learn all you wire and electric parts of hvac there's other videos on you tube that goes more in depth once learn what each part is called and does then look up videos of how to trouble shoot hvac electric it took me about 8 different videos just to learn the basic then after you can move to more advance like how to check volts, Amps and other things
Thanks for your video. I am still searching for an opinion on the cons and advantages of the different air handlers setup in small closet, vertically, of apartment buildings and also, the difference on the position of the blower ... and the inside A or not A coils and all that water runoff that soon will rust the surrounded air handler area and the mold and bad odor will set in..... Many thanks again.
Thank you! I find this very helpful. I have the AC guy saying my low voltage wires are crossed with my neighbor. I live in a condo community. He's saying that my neighbor has been paying my electricity bill when I turn on the AC. Is all this low voltage? Sorry, may sound like a stupid question but I don't know anything. Is 24 volt considered low voltage?
Just a heads up that blower motor is an inducer fan motor. The inducer is part of a gas furnace only, it's main function is to pull a draft of air and remove left over gases from the previous ignition of the furnace, which in turn pulls negative pressure on a pressure switch which then allows power to run to the gas furnace. The blower motor however is a different part of fhe system that is in a squirrel cage located in the air handler.
Thank you for your video. I did not see the Solid State Time Delay for thermostat. Question: You called that "Fan Relay," is it the same as Solid State Time Delay?
@@engineeredcomforthvac4911 Thank you for your video. My ac cooling system keeps running and cannot be turned off, what is the main problem I need to look into? I replaced Time-Delay, Fan-Relay, and contactor (outside)? I would be happy to see that I can turn off at the thermostat.
Got a furnace with no control/circuit board that blew a transformer (no fuse) replaced transformer and added fuse and blows the fuse instantly when i turn the power on! Any thoughts?
Low voltage shorts are difficult to find even for techs. Look for chafed wires where they touch metal, usually where they go thru openings in metal frame. Could also be a shorted coil on gas control valve, try disconnecting coil wires than replace fuse. You may go thru a lot of fuses before you find it.
That was good. Now make one showing the compressor, capacitors, 521 or hard start kit and fan motor of the condenser unit. This is the one most have trouble with it as electricity is not flowing in one and then out to another.
What would you suspect the problem would be if you got a blower that works in low speed only UNLESS you reset power to the air handler in which case it comes back on at full force but only for a few minutes when then it slows back down to going slow. So slow that you don't feel any air coming out of the vents....
@@engineeredcomforthvac4911 where do the white wires from the blower and heater connect? I see at they top right corner they go through a hole behind the bored, but that’s all I see? Please help 😀
Nice work. Most people in hvac school have trouble understanding the wiring side of hvac more than anything myself included. I appreciate these videos!
You put a lot of thought and work into this video and the layout of all the circuits, and kept the explanation simple and to the point.
This is exactly what I needed for a guy learning on the job that did not go to school
Guys, what are you talking about? I enjoyed watching this video. The guy is national treasure. Explained everything to the details and more. The topic clearly said “ how a basic electric residential HVAC system works”
so come on guys…give a man some credit. Thanks!
Excellent demonstration. So appreciate the time you took to help other.
Been doing hvac for a couple years now and this is great
Thank you for this. I'm just about to start my HVAC courses and this was very helpful!
Thank you so much! I was really confused during my first week at trade school, but now I’m starting to understand things better. Keep up the great work! I’m enjoying your videos and learning a lot from you. 🤟
Definitely need to make a lot more videos by far the best video I’ve seen on wiring
Excellent explanation and a great training aid to show us how simple this electric system really is. Thank you sir!
In most gas furnaces, the blower is the LAST thing to come on. It first has to perform safety checks and light the furnace, then a delay to let the temperature warm up, THEN start the blower so you are pushing warm air into the house instead of cold air the minute it starts.
Best video on the internet on this subject, you are a great teacher, I have subscribed to your channel thanks...
Really awesome video! Very explained, reminds me back then when my teacher would give all the components and set up everything over and over again. Good times!
Welcomed
I wish I can subscribe 100 times to such an invaluable content! God job and thank you so much.🙏
@@simbakali thank you!
Bro teach us more the way u explain things is so easy to understand.
Such a great video. Deserves way way more love.
A First Class demonstration.
Great job . Thanks for sharing with us.
Overall this is a BRILLIANT model. Thank you! This is good, VERY good. It would have been better if the Thermostat RWYGC strip was shown and if the Outside Relay 120 VAC white/black wire was shown terminated to the circuit breaker.
Same with fan relay. With the black/white going into the hole it just looks like black magic. But sincere thanks!
great descripton thank you for uploading, really simple way ffor beginners to understand , thank you
Amazing man just super ... understood very easily been needing a video like this great
Wow one of the best explinations I have ever heard👍👍👍
You did an awesome job explaining 👏🏿 👍🏿 great video hope to catch more
U the best my friend now I know how to connect because almost to burnt the unit
thank you for being simple and to the point I got it now
Well done, brother!! Best video out there!!! God bless!
Thankyou my fredean all welcomed thsnkyou
Great video but the problem I am having is this, I have a Honeywell that has a red, green , yellow, and white. I know red gets 24 volts, the green is fan only, the yellow is cool, and the white is heat?
I have a black wire from the load side, and I don’t k ow where it goes. There are two wires to the out side unit red and white. How does that hook up to the inside unit!!!
Great video, I am just missing to know where these various components are located? Are all inside the air handler?
Love your video. Is there anyway you would be able to do a troubleshooting video on the sequence of operation in diagnosing an electrical issue with the same set up you used?
Very nice explanation. Like the real world on the test board demonstration. When you time it out on the sequencer, it appears to be around 20-30 seconds to heater on after fan on and again 20-30 seconds after heater off before the fan shuts off. Think you are in high gear all day so waiting 20-30 seconds seems like a minute or two to you (-: Unless you cut out some video 😁
I just want to add that if your inside fan motor isn't running the outside condenser want start up for heat or cooling. A lot of times you can go to the air handler and check the fuse at the transformer. It's an easy fix but only if you know to look for it.
Solid video. Thanks for the upload
Sorry but I've been in the trade for 12 years and this set up never gets across. This was at every school and still in every school. Most people do not understand this set up because they haven't seen it in real world aspect. I wish I can teach a lot of new techs how to check running anps and how to do proper PM'S and learn the sequence of operation so that when they are called on service calls for no heat no cool, they know where to look and what to do after starting the unit and why it happened and if the unit is working properly. This would be good foundation for a tech if taught properly in schools
If you’re in the South Georgia area we need an instructor at wiregrass
I'd rather see a furnace or real unit. This OSB rig does nothing for me in the real world. Sorry I must be an idiot cuz I can't learn like this. What the heck does the sequencer do? I need real world application
Hola yo vivo en Addison quiero saber q tan serva están de aca
@fubufb420 I have the same problem, but believe it or not, this is the best way he explained it very well first learn all you wire and electric parts of hvac there's other videos on you tube that goes more in depth once learn what each part is called and does then look up videos of how to trouble shoot hvac electric it took me about 8 different videos just to learn the basic then after you can move to more advance like how to check volts, Amps and other things
@@fubufb420if you see this and still need the answer, let me know. I suspect by now you found the answer somewhere else.
Good job, great explanation....
Thanks for your video. I am still searching for an opinion on the cons and advantages of the different air handlers setup in small closet, vertically, of apartment buildings and also, the difference on the position of the blower ... and the inside A or not A coils and all that water runoff that soon will rust the surrounded air handler area and the mold and bad odor will set in..... Many thanks again.
Excellent explanation.
Awesome explanation 👏 👌
Thank you! I find this very helpful. I have the AC guy saying my low voltage wires are crossed with my neighbor. I live in a condo community. He's saying that my neighbor has been paying my electricity bill when I turn on the AC. Is all this low voltage? Sorry, may sound like a stupid question but I don't know anything. Is 24 volt considered low voltage?
Yeah, that was pretty cool. You broke it down like that. I am a beginner.
Great demo 🙏🏼
Any idea why the white wire at the thermostat would not have power? Transformer is fine. Could it be a bad sequencer?
Was a great video but maybe u could of put a hi limit and how it works . u sort of used the sequencer for fan limit
have a amazing day stay safe and Jesus loves you
Excellent, informative video! Thank you!
Fantastic lesson
Thanks, my unit is old and looks very close to that. No control board
Need a setup like this for a 12v propane RV furnace
Awesome video !
Well done!
Awesome! Well explained!
Wow great video.
Practical display.
Thk u.
Troubleshooting HVAC is super easy...i can't believe.. super basic..
Yeah but once you start dealing with chillers and vrf or even DOES or ERU units that is when things get tricky
Just a heads up that blower motor is an inducer fan motor. The inducer is part of a gas furnace only, it's main function is to pull a draft of air and remove left over gases from the previous ignition of the furnace, which in turn pulls negative pressure on a pressure switch which then allows power to run to the gas furnace. The blower motor however is a different part of fhe system that is in a squirrel cage located in the air handler.
yes im aware of that it was used for education purposes (acting as a blower motor) to help explain my setup..
Thank you for your video. I did not see the Solid State Time Delay for thermostat.
Question: You called that "Fan Relay," is it the same as Solid State Time Delay?
you’re welcome, them come built in the tstats now days
@@engineeredcomforthvac4911 Thank you for your video. My ac cooling system keeps running and cannot be turned off, what is the main problem I need to look into? I replaced Time-Delay, Fan-Relay, and contactor (outside)? I would be happy to see that I can turn off at the thermostat.
am I missing something all the power but the transformer just make a loop and come back to the same L term on breaker?
yup one side is on every relay (common) and the hot wire is broken up and distributed as needed
Probably is bcs only 110v set up not 240v
nice work
great job
Got a furnace with no control/circuit board that blew a transformer (no fuse) replaced transformer and added fuse and blows the fuse instantly when i turn the power on! Any thoughts?
Gas piping probably installed upside down.
Take some pictures before you remove part(s) and wiring.
Low voltage shorts are difficult to find even for techs. Look for chafed wires where they touch metal, usually where they go thru openings in metal frame. Could also be a shorted coil on gas control valve, try disconnecting coil wires than replace fuse. You may go thru a lot of fuses before you find it.
Well done ✅👍
Thank you for this video
Very good video thank you.
thanks for this!
great video. thans
Thank you.
Thank you
great video
My blower stays on how can I fit that?
@@sophiagrose2368 check the fan relay
That was good. Now make one showing the compressor, capacitors, 521 or hard start kit and fan motor of the condenser unit. This is the one most have trouble with it as electricity is not flowing in one and then out to another.
@@pipi7731 will do my friend
What would you suspect the problem would be if you got a blower that works in low speed only UNLESS you reset power to the air handler in which case it comes back on at full force but only for a few minutes when then it slows back down to going slow. So slow that you don't feel any air coming out of the vents....
Hey i would check your return .sounds like flex is coming lose and choking the air flow
I have run into this problem alot.
@@donaldmoore4522 but why when I reset the power it blows at full speed?
Parabéns pelo vídeo 👏👏👏
Bravo 👏🏻
Shouldn’t the heat strip start first
Thank u
Good
Use the meter show us
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wish you did a cleaner job on the wiring so i can follow it.
ill make another video if you’d like?
@@engineeredcomforthvac4911 where do the white wires from the blower and heater connect? I see at they top right corner they go through a hole behind the bored, but that’s all I see? Please help 😀
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