wyliesdiesels
Well-known member
I didn't realize he has 2 threads going!
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Ingersoll Rand Compressor Overload
- Thread starter boilermanc
- Start date
Delta74
Well-known member
as others said, first verify you are getting 220v AT the motor, since you tapped into the dryer plug, its possible someone did a poor wiring job somewhere, second, the thermal keeps popping ok, something is over loading, if you have cleaned the centrifical switch so its not sticking, thats one more issue dealt with, is the motor a 115/230 volt? or just a 230v? if its a split voltage are you sure the motor is wired properly for the voltage your giving it? honestly by what your describing, it sounds like your giving a 230 volt motor 120 volt, and causing the amps to spike cause its only getting half the voltage, yes it will run unloaded like this all day long, put a load on it, and POP overloads if your lucky, or magic smoke comes out if your not.
get us a picture of the motor dataplate, and how you have it wired into the pressure switch. and reading your other thread, NO you dont put the meter on 200V if your reading 230 at the plug, you need a voltage Higher then what you expect to see.
but I really am willing to bet your feeding it 120 volt.
get us a picture of the motor dataplate, and how you have it wired into the pressure switch. and reading your other thread, NO you dont put the meter on 200V if your reading 230 at the plug, you need a voltage Higher then what you expect to see.
but I really am willing to bet your feeding it 120 volt.
pattenp
Well-known member
boilermanc, where are you? What's the deal? Have you figured out the problem?
OP
boilermanc
Well-known member
Sorry guys! Busy, crazy weekend. For some reason I stopped getting the updates to my email and was just now checking back to the board, and wow, thanks for all the info! I am a little behind on this now!
Let me post a few pics. I will address the wiring in the next post. This is where I pulled the top off the compressor and this is what I found. Pic 1 should be the top. Clean ports at both arrows. One is the outlet, one is the air filter intake.
Pic 2 is the plate sitting on top of the top of the compressor. Not sure what you call it but it's clean too. It's marked as A.
Pic 3. Is the top looking into the compressor pistons. They are clean too.
So A will go back on B. Do I need use something to seal them together? There is not a gasket between them, just metal.
https://sphotos-a.**.fbcdn.net/hphotos-prn1/560639_10151214783719242_461993940_n.jpg
https://sphotos-a.**.fbcdn.net/hphotos-snc6/229899_10151214783769242_1160189233_n.jpg
https://sphotos-a.**.fbcdn.net/hphotos-prn1/33853_10151214783824242_1073156320_n.jpg
Let me post a few pics. I will address the wiring in the next post. This is where I pulled the top off the compressor and this is what I found. Pic 1 should be the top. Clean ports at both arrows. One is the outlet, one is the air filter intake.
Pic 2 is the plate sitting on top of the top of the compressor. Not sure what you call it but it's clean too. It's marked as A.
Pic 3. Is the top looking into the compressor pistons. They are clean too.
So A will go back on B. Do I need use something to seal them together? There is not a gasket between them, just metal.
https://sphotos-a.**.fbcdn.net/hphotos-prn1/560639_10151214783719242_461993940_n.jpg
https://sphotos-a.**.fbcdn.net/hphotos-snc6/229899_10151214783769242_1160189233_n.jpg
https://sphotos-a.**.fbcdn.net/hphotos-prn1/33853_10151214783824242_1073156320_n.jpg
OP
boilermanc
Well-known member
My plan now is to get the compressor head back on and then test the power at the outlet and pressure switch and will report readings on that. Not sure that happens tonight - Scout night. I have walked through what I have setup for power but will double check all of that tonight at least and report on later. I know that I have a 30amp double pull on the breaker box. Don't remember the wire I used. And then wired that to a dryer outlet. Might have done that wrong so could post some pics if I take the cover off.
I will send a pic of the label on the motor. Yes, 5hp, 15amp, 240v. And yes, I understand that that's not really what it is. The man who looked at my motor gave me a good overview.
I will send a pic of the label on the motor. Yes, 5hp, 15amp, 240v. And yes, I understand that that's not really what it is. The man who looked at my motor gave me a good overview.
wyliesdiesels
Well-known member
What's weird about that nameplate is the 15amps doesn't match the readings you're getting with a clamp meter and the readings you're getting don't match a 5hp motor. Definitely something funny going on with the electrical. I'd be willing to bet the motor is either only seeing 120v, the wire is too small causing Vd, and/or the outlet is wired wrong! @ this point, I don't see how it could be a mechanical problem!
OP
boilermanc
Well-known member
Ok, here come's the wiring pic's. First is the plate off the motor:
https://sphotos-b.**.fbcdn.net/hphotos-ash4/407582_10151215462214242_188874741_n.jpg
Second is the wall outlet. I used 10/3 Romex that runs from a duel 30 amp breaker. Hopefully that is the correct wire? And hopefully I have the dryer outlet wired up correctly?
https://sphotos-a.**.fbcdn.net/hphotos-ash3/550473_10151215462409242_298277638_n.jpg
Finally, the pressure switch. The wire running off the left side is what is wired to the dryer plug. I had to replace that whole piece and the plug.
https://sphotos-b.**.fbcdn.net/hphotos-snc6/178992_10151215462334242_232887750_n.jpg
I have to get some new bolts for the compressor head to put it back together before I can test the voltage coming in.
thanks!
https://sphotos-b.**.fbcdn.net/hphotos-ash4/407582_10151215462214242_188874741_n.jpg
Second is the wall outlet. I used 10/3 Romex that runs from a duel 30 amp breaker. Hopefully that is the correct wire? And hopefully I have the dryer outlet wired up correctly?
https://sphotos-a.**.fbcdn.net/hphotos-ash3/550473_10151215462409242_298277638_n.jpg
Finally, the pressure switch. The wire running off the left side is what is wired to the dryer plug. I had to replace that whole piece and the plug.
https://sphotos-b.**.fbcdn.net/hphotos-snc6/178992_10151215462334242_232887750_n.jpg
I have to get some new bolts for the compressor head to put it back together before I can test the voltage coming in.
thanks!
OP
boilermanc
Well-known member
Was able to test one more thing. At the outlet, I get 242 - 244 on the hots and 120 across hot to neutral. So I would think the plug is getting the right voltage. Will have to try to test the motor and pressure switch voltage tomorrow.
pattenp
Well-known member
The neutral is not needed and should not be wired with the ground. Also that is the wrong style outlet to use. It's an old style dryer outlet and doesn't have a ground.
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wyliesdiesels
Well-known member
Was able to test one more thing. At the outlet, I get 242 - 244 on the hots and 120 across hot to neutral. So I would think the plug is getting the right voltage. Will have to try to test the motor and pressure switch voltage tomorrow.
Are u sure the white wire going to the pressure switch from the dryer outlet is connected to the red leg on the outlet and the black is going to the black leg on the outlet?
OP
boilermanc
Well-known member
That's what I will check next. Will test the power on the pressure switch and see what I get and check how I wired up the plug again. I can get new outlet if needed.
wyliesdiesels
Well-known member
You could use a continuity tester to do that.
OP
boilermanc
Well-known member
Oh my goodness! I think I went through the whole realm of human emotions! Laughed, cried, burped, farted! I got it going! Well, you guys, helped me get it going! Wow, what a journey that was. And of course just something very simple.
If you had suggested I test the leads at the pressure switch then you get the gold star! As I mentioned last night, I tested the plug and it was good. I tested those leads tonight and sure enough, 120! Ugg. I took the plug apart and wyliediesels lead on how the wires should be setup and voila, 240! Wow. I had done so much research on that plug when I originally did it, but I guess that I had it wrong!
In any case I am up and running and loving it! She just sings! Now to get my homemade sandblaster up and running! I will post some pics of it as well. Pretty cool!
I need to test the pressure switch. I guess if it goes too high the pressure release valve blows if the switch does not shut it off?
thanks again guys. I am very happy with this. Glad I did what I did. I learned alot and have a great machine now!
If you had suggested I test the leads at the pressure switch then you get the gold star! As I mentioned last night, I tested the plug and it was good. I tested those leads tonight and sure enough, 120! Ugg. I took the plug apart and wyliediesels lead on how the wires should be setup and voila, 240! Wow. I had done so much research on that plug when I originally did it, but I guess that I had it wrong!
In any case I am up and running and loving it! She just sings! Now to get my homemade sandblaster up and running! I will post some pics of it as well. Pretty cool!
I need to test the pressure switch. I guess if it goes too high the pressure release valve blows if the switch does not shut it off?
thanks again guys. I am very happy with this. Glad I did what I did. I learned alot and have a great machine now!
Rickster55
Well-known member
Glad to hear it! After following your thread, I'm scared as hell to even try wiring my compressor up. Might just call an electrician in to do it.
pattenp
Well-known member
I've gone through all the posts on both threads and I see you mention 3 wire, 2 wire and am starting to question the wiring. I do not see where you have put a voltage meter on the hots at the pressure switch and reported that the actual supply voltage is 240V.
Duh... it was suggest by me and others way back. Should have been one of the first things to check. You would have saved yourself some headaches.
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OP
boilermanc
Well-known member
Yes very true pattenp. Would have saved me many a sleepless night trying to figure this out. But in the end the works and I did learn alot and hopefully this thread will be a like the de-motivational poster from Despair - Mistakes - It could be that the purpose of your life is only to serve as a warning to others...