I just wanted to show and explain how a residential HVAC system and its low-voltage controls work and show a visual so you can see exactly what’s happening...
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
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.
Nice work. Most people in hvac school have trouble understanding the wiring side of hvac more than anything myself included. I appreciate these videos!
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.
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?
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!
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.
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 😁
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.
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!
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.
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....
