I've been doing HVAC and electrical work since 1992. This was the best instruction I've ever seen for the start circuit on a single phase compressor. Great job sir.
@21footxpress
3 жыл бұрын
WOW!! Thank you very much!!!
@TheMookie1590
Жыл бұрын
@@21footxpress wow bro. youutbe showed me one of your vids from 14 years ago. like what? that is old. But it chose yours. looked at your stuff and you havent uploaded in 13 years? But you did respond to this msg from 1 year ago. bro, you gotta come back.
@21footxpress
Жыл бұрын
@@TheMookie1590 Thanks a lot. I have an idea for a new video I just need to make it happen.
@jollyscaria1922
Жыл бұрын
Rely potaruonl rely sighl phase 5.2.1 L2 satrt cap .point 2 point and connecting startin point comprssar comon point 2winding compoint othwr point runing point comon cycliling controold over lord L1...ciecuit comepted l1 .l2 enizing compltly ..L2 ..relay contanted potentiaol re..ly connwatd no..relay coil contacting comon point L1.. contacted ...over lord ... L2 1 startcap .. 2 ponit coil wunzing starting potensional rely circiut
@jollyscaria1922
Жыл бұрын
Rely potanshionl realy dummy point .mens mt ...46 ..mt point...))
@tstatech
13 жыл бұрын
You are the man, that was the easiest to follow explanation of how a start kit works. Excellent job.
@saberconstruction7224
3 ай бұрын
You have made one of the best, simplified videos I’ve seen on KZitem. Most people just make things to difficult. You took something that is confusing to many and made it very easy to understand. Great job!
@21footxpress
3 ай бұрын
Thank you very much!!
@zerotrace000
Жыл бұрын
Sir, This is an excellent explanation of how a potential relay works. i am grateful for your video.
@21footxpress
Жыл бұрын
Thank you very much
@theRonnor58
2 жыл бұрын
Very nicely done. I just ran into this circuit on a water well pump system, and I was stumped. This helped alot thank you! Subbed.
@21footxpress
2 жыл бұрын
Glad that this helped!!
@MrDeviousdom
5 жыл бұрын
Great video. Most techs have no understanding of electronics. The voltage produced on terminal 2 is from the collapsing of the magnetic field on the start winding which is higher than the supply voltage. It is important to point out that although almost everyone will insist that capacitors pass AC current, that is not true. They simply appear to pass current due to the rapid charging and discharging. Understanding this fact will help techs understand why a larger capacitor results in a larger current across the device.
@resandor
9 жыл бұрын
This is a shame! I have been in hvac school for 2 semesters and my instructor has never broken this down this easy! I have been searching for hours tonight to understand this and u did it in under 10 minutes! Keep it up man
@21footxpress
9 жыл бұрын
I'm glad to help. Good luck
@21footxpress
9 жыл бұрын
Thanks
@nothankyou5524
5 жыл бұрын
This guy always seems to be spot on. I refer people to his videos a lot. Keep in mind your classes are no different than any other higher education class. It's there to expose you and make you familiar with what you don't know. It's then up to you to look for places like this to learn about it from different angles. How far you go is always up to you.
@wagner55
3 жыл бұрын
My instructor used this video for a better explanation, thank you!
@jollyscaria1922
6 ай бұрын
Power giveing 220v coil engzing coil power com and strpoited r ..runing poing strting windinv power engzing l1l2 comon netsl power starting poing ruing and coomn disconting working
@okgil204
14 жыл бұрын
I have ben studying this motor starting stuff for a while with no good understanding of the electrical principals of how the relay cut out worked and this guy explains it so well there is not a shadow of any doubt of how it works. Thank you and God bless. Gil
@mohdahmed8400
Жыл бұрын
I agree with you, thank you
@MrAmosmalachi
10 жыл бұрын
Very thorough and easy to understand. Good instructor. All of his videos are worth watching.
@larryprice6321
11 ай бұрын
Love the way you explained this , I'm just starting to learn
@21footxpress
11 ай бұрын
Thanks. Good luck in the trade
@cryptkeyper
2 жыл бұрын
Used this video today. Watch 3 others that were not as clear as I needed. This solved my issue. That you for you clear break downs
@21footxpress
2 жыл бұрын
Glad to help
@rjmonestime6847
Жыл бұрын
Hi , I ‘ve watching you for years since I was going to HVAC school in 2009 , You are Excellent !!!
@21footxpress
Жыл бұрын
Thank you very much
@glennsepelak5113
6 жыл бұрын
been in this business 36 years, AWESOME job of teaching, well done
@21footxpress
6 жыл бұрын
Thanks
@christopherpaul2938
7 жыл бұрын
book professors i love them they know their books i tell you, i have wondered if they just as good on the field. this guy knows his shit. 17 years in the hvac field and i don't really get alone with book smart guys. and i went to school for this hvac thing in the early 90s. my field experience always gave me an edge over these book smart guys.
@quocdai79
6 жыл бұрын
Best explanation about this I have ever seen. Thank you.
@21footxpress
6 жыл бұрын
Thanks
@MrGarcon98
6 жыл бұрын
excellent work here ,,,i found this guy years ago now i am aranging my favorites hvac vids and i am glad you are still here with this vid ,,,,this man knows his stuff no doubt about it ,,,,thanks again ,,,,i am here to refresh i am retired ,,,
@daniele8368
4 жыл бұрын
This video is excellent, and the way he drew it out is much easier to remember than the ways I was taught. A rhyme that helped me remember how to wire potential relays was, "5,2,1...cock, sucker, run". 5="cock"(common), 2="sucker"(start), 1="run"(run). It's crude, but it's memorable. I always find myself muttering it under my breath when I'm wiring these in
@hounddoggzgaming6970
8 жыл бұрын
so glad I found you. never learned potential relays until now
@johntrauger68
6 жыл бұрын
I came here because I decided to install a hard start kit on my home AC condensing unit, just for familiarization. The instructions are quite clear, but I'm the curious type... I teach at an electrical tech school and have a HVAC background as well. I must say, that was one fine explanation of how the start capacitor is dropped out of a circuit using a relay versus the typical centrifugal switches used in open motors. I usually don't address this subject in the electrical only class but I'm going to start now just for comparison purposes. Thanks much, good work!
@21footxpress
6 жыл бұрын
Thanks for the kind words
@DLoyKnowles
13 жыл бұрын
Your videos are the best. The clearest explanations of any I have seen. Thanks.
@vincentdsnt
8 жыл бұрын
Thank You ...you did a good job and I did not even need an engineering degree to understand you.
@21footxpress
8 жыл бұрын
glad to help.
@Rayram555
6 жыл бұрын
Great explanation . You are very knowledgeable, and by explaining this you are doing a great service plus makes you a better person.
@mohdahmed8400
Жыл бұрын
Yes it is.
@vabeach1989
5 жыл бұрын
Awesome training and explanation of potential relays. Please post more videos...
@RatTailKid15
15 жыл бұрын
Thanks for breaking everything down, my teacher is stupid and does not explain it as easily as you do. Thanks.
@1242chisox
11 жыл бұрын
My HVAC instructor has recommended your videos. Very helpful.
@jrm1559
14 жыл бұрын
21footxpress, you did a great job at xplaining potential relay. plain and simple.
@jasonunderhill1001
2 жыл бұрын
Great video.. You broke it down proper. Thank you for sharing your knowledge..
@mikefox2379
5 жыл бұрын
Excellent explanation my friend. It is also amazing just how much voltage the back EMF can generate. Hard for some to grasp that even though the motor is 240 volts the back emf generated can be very high even as much as 500 volts. That is why the pick up voltage is stamped on the Potential relay. Never buy a relay with less pick up voltage than is stamped on the relay.
@21footxpress
5 жыл бұрын
Thank you very much
@WhatDoYouReallyMean
10 жыл бұрын
Thanks for the great video. Simple and direct the way all education should be. Take care and keep posting!
@maglectric3624
5 жыл бұрын
You made it so very easy to understand. Thank you
@wolfofworld
14 жыл бұрын
You explained a CSR/PSR better than anyone or book yet.
@1gladiator888
10 жыл бұрын
Good video .straight to the point . You are a true teacher .thanks for posting it. So to test a relay (de energized) all contacts would show continuity for a "good" relay. Opposite a "bad" relay would be open on one terminal for a continuity test. I hope I answered my own question.
@spelunkerd
3 жыл бұрын
Oh, boy, out of confusion comes a moment of clarity (I think). The start windings and the relay coil are in parallel, and when the motor is not spinning, the impedance of the start relay is far higher than the start windings, so almost all initial current goes through the start windings. I reasoned that as electrons flow and the motor spools up, back EMF effectively increases impedance of the start windings, reducing current draw and leading to more current following the parallel pathway through the relay coil. That extra current through the relay coil pulls the contacts open, resulting in a transient voltage spike at the S post, for a few hundred microseconds. But what keeps the start relay going after that? After all, with relay contacts open there's no pathway for electrons in the relay coil to get to the L2 side! It's now trapped in a blind loop with the start windings. I'm guessing the relay stays closed because the spinning motor acts as a generator on the start windings, producing reverse AC current with enough of a ripple through that blind loop to keep that relay coil activated. Correct?
@greenmillsmikey
10 жыл бұрын
Great explanation of a pot relay. Very helpful. Thanks.
@Dcthetruth85
14 жыл бұрын
I like the way you broke that down sir. I can wire this with ease now.
@SaintWilliamIII
15 жыл бұрын
Thanks 21footexpress,,,,,,that was great. You have wonderful teaching methods.
@skdogg2112
13 жыл бұрын
I'm in school trying to figure this out for days. This really helped.. Thanks!
@HarleyDoo2
13 жыл бұрын
Thanks man, you really go into detail and it has been awhile since i was in school. You make a man think. Thanks again and keep me on your list.
@trouble30906
2 жыл бұрын
I like the way you teach..Keep up the good work
@TheWeekendGamerz
4 жыл бұрын
Thank you for clearing this up for. I just wanted to make sure I understood it correctly
@joedc8169
3 жыл бұрын
Very Good Presentation one of the best I have seen
@21footxpress
3 жыл бұрын
thanks!!!
@Terrible1
14 жыл бұрын
i enjoyed watching this. its like being in school without being at school lol i thought it was the power comming from your line 1 that energizes the coil on a pmr that opens the contacts. but emf makes sense a bit. god bless!
@dserve
14 жыл бұрын
really appreciate the video man its great to see a brotha break ish down. I am a black man and i feel that we learn better from each other there's just something about the black voice that makes you more attentive.
@jeremythrasher2954
Жыл бұрын
Excellent, and very informative video. Thank you!
@21footxpress
Жыл бұрын
Thank you
@hidalgojuarez
14 жыл бұрын
Just Great videos, thanks because you are taking the time to teach people, God bless you
@alberteay
12 жыл бұрын
Thanks for sharing this..It really help me fix the broken control box by myself....
@Marcusharding99100
3 жыл бұрын
Beautifully explained....... I was browsing you tube and found your vid, could have done with this when I was an apprentice, I remember an engineer going through motors with me 25 years ago .... shame you tube wasn't invented then, as he wasn't the best at explaining/conveying information.... :) :)
@Hfernandez06
12 жыл бұрын
Clear and simple, very good Job
@MiisFiit
8 жыл бұрын
Amazing video, you should post some more videos man, you would help a lot of people
@Arieldny
5 ай бұрын
Excellent explanation!!!
@21footxpress
5 ай бұрын
Thank you
@ramonmartinez6330
3 жыл бұрын
What a great explanation maestro thank you very much
@21footxpress
3 жыл бұрын
thank you very much
@21footxpress
14 жыл бұрын
I use Feildpiece SC77. The newer white timers may have a capacitor in them. It was written on the side of one in very small print. Thanks!
@elran123
9 жыл бұрын
fantastic explanation. I hope your a teacher.
@antfasulo613
11 жыл бұрын
good job this is where I stared my career out if trade school I have took many collage level cores and this of the best one you cover everthing';
@mehdiimran
13 жыл бұрын
thank you the best explanation ever
@bryanmeek7462
Жыл бұрын
Ty well said I am going to use this to show young guys
@mazzmari
14 жыл бұрын
That cleared up alot of my questions, thanks. Hopefully you make more videos.
@Rayram555
5 жыл бұрын
This is a very good explanation . Thank You
@nothankyou5524
5 жыл бұрын
Great videos, as always.
@21footxpress
15 жыл бұрын
the coil has very high resistance. Electricity takes the path of least resistance. And the coil is rated for a higher voltage than the motor
@GeeKayKayGee
15 жыл бұрын
A good explanation and presentation.
@KkeShannon
Жыл бұрын
Thanks so much! Awesome explanation!
@19voodoo69
11 жыл бұрын
Do you know how many years I have been trying to figure these out? I knew about the back EMF but know this makes it clear!!!!
@jaggedthoughts
15 жыл бұрын
thanks! please keep them coming.
@FloorToast420
7 жыл бұрын
well explained, thank you
@fattony123082
12 жыл бұрын
Now that I think about it your relay has lots of potential ...
@jonesacnaples
11 жыл бұрын
You did a great job, keep up the good work.
@21footxpress
12 жыл бұрын
@ghazanfar977. The start winding produces voltage once the motor is running. That " back voltage" is what energizes the coil.
@kurtheise1083
10 жыл бұрын
Another good video keep up the good work
@MrLastyme
14 жыл бұрын
i learned this in trade school 12 years ago im pretty good w troubleshooting motors can u do a electrical diagram on fan centers the most intimidating relay/transformer of all time thanx luv ur videos
@SuperOceon
14 жыл бұрын
thanks for your time that was brilliant
@jimkillen1065
Жыл бұрын
I appreciate your videos
@21footxpress
Жыл бұрын
Thank you very much
@AnaThema010110
13 жыл бұрын
best explanation I've heard! thanks!
@mikejovanovic1645
6 жыл бұрын
Perfect explanation thank you very much
@musclehedd
12 жыл бұрын
ive watched everyone of your vids, and i love how you break and it down and simplify it, keep up the good work. do you think you can do a video on how to troubleshoot a particular circuit, as far as where to put your leads and find what component is bad? thanks again.
@trevor3531
12 жыл бұрын
Hi from OZ andd thanks for youre clear and easy to understand demos.I have heard you mention another motor demo.Is it on youtube ?, as I cannot find it.Keep up the fantastic work !!
@ThePharris16
12 жыл бұрын
I hope you're an instructor somewhere. A 7 minute video and I now understand how this works
@danyelmo2831
8 жыл бұрын
Thank you. Very clear!
@discodaddy4831
3 жыл бұрын
very well explained
@yrtuag
13 жыл бұрын
excellent video.
@mjmej4734
3 жыл бұрын
Why did you stop posting? Great info about basic things in hvacr. I have 8 yrs heavy refrigeration and ac and I still review the basics. Thx
@21footxpress
3 жыл бұрын
I dont know why I stopped. I really need to post new videos soon. Thanks
@polemicvs
2 жыл бұрын
@@21footxpress Yes! that'd be AWESOME if you did! You're a talented teacher! There was a teacher in NW Ohio who was legend for his teaching at PENTA County trade school (Ed Shriver), and you remind me so much of him. Hope you get time to post more.
@21footxpress
2 жыл бұрын
@@polemicvs Thank you for the kind words. That will motivate me to do more.
@theASEtech
14 жыл бұрын
you r video is very easy to understand because you explain good i just would like to ask something the numbers on the potential relay still the same on all brands or they change? thanks for the video is good
@MENACEERA
11 жыл бұрын
Thanks for the video.
@manuelsalazar9663
12 жыл бұрын
good job easy to understand. thankz....
@quinntalley1681
Жыл бұрын
Nice job!
@atnband
12 жыл бұрын
Dude your so awesome! Thanks!
@ryanwilson3049
4 жыл бұрын
Thank you.
@jesusortiz8499
2 жыл бұрын
You are awesome explaining things, you should be a teacher...:) I ve notice that you have not put more videos? I hope you are ok. It would be wonderful if you do. Regards.
@21footxpress
2 жыл бұрын
Thank you. Im doing well. I will do my best to post another one.
@cl60cruzer
13 жыл бұрын
great teaching ability! can you explain other components like motorized vent dampers and boiler curcuits and components?
@ratecoudo
13 жыл бұрын
Good job man it was nice.
@louisseaman8455
6 жыл бұрын
I think what's missing in a lot of the videos that explain what a capacitor is actually doing in the circuit, is that the capacitor is absorbing current, so on motor start-up, the circuit looks closed, temporarily, until the capacitor is charged and no longer looks like a load to the circuit. Although, this is AC, so the capacitor can pass some current continuously.
@MrMultitool
14 жыл бұрын
I enjoyed the video.How did you know there was a capacitor in the coil of the relay?Also what meter do you prefer? Again i think you really have a gift for teaching Thank -You again!
@RobFrancis-ux1ew
6 ай бұрын
Great 🤔🤔Video.....just one observation (I'm no expert just interested in the subject)....but won't there be Back EMF generated in the Run Winding also?....or does this not matter....I'm a little confused 🙂. best regards Rob
@mohdahmed8400
Жыл бұрын
Very nice presentation
@21footxpress
Жыл бұрын
Thank you very much
@maness2112
12 жыл бұрын
Good review for me, I am not out in the field right now, but are there potential relays on residential AC with r 410?
@Bailey2763
12 жыл бұрын
GREAT JOB BUDDY!
@felixlee7824
7 жыл бұрын
Very helpful. thanks
@21footxpress
15 жыл бұрын
Yes. they come prepackage with the potebtial relay.
@minxaleone
11 жыл бұрын
Great video!
@vernettebriley
11 жыл бұрын
Very Very good video! question you spoke a motor video, where can I find It?
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