WEG 4 hp compressor electrical question

[Chris Adams]

Hi, working on several compressors, and need some help from anyone who has a Husky or CH with a WEG motor.

The caps were swiped from this motor. Two caps, run and start, both gone, as is one cover.
Thing is, I can not find a schematic anywhere.
Since it is from 2006, WEG doesn't even acknowledge the motor, much less the wiring.

I'm talking about which Cap goes to which wires, which wires hook to where.
If anyone has one of these and could pop the cover and take a look, it would be great.

One cap takes a gray wire and a black wire
The other cap takes a black wire and two red wires. Or possibly red and white. Color is badly faded on the red wires.
Which is run, which is start?

Got three other large compressors, and of course, none use more than four wires, except the Smith, which has a wire across the two caps.
Anyway thanks.

 

[Greatbear]

Here is a simple test, but you'll need the wiring diagram handy. disconnect one of the wires that gets moved to change the rotation of the motor. Doing this opens up the start winding circuit. Use an ohmmeter or test light to measure continuity between the pair of wires that connect to each cap. The start cap connections will read open, and will read nearly a short when the wire for rotation is reconnected. The pair of wires for the run cap will read a low resistance regardless. Now, if all these capacitor connections are inside of one enclosure rather than underneath individual covers for each capacitor, this test is not truly valid, as there is no way to differentiate which two wires connect to each capacitor.

 

[Chris Adams]

Here is a simple test, but you'll need the wiring diagram handy. disconnect one of the wires that gets moved to change the rotation of the motor. Doing this opens up the start winding circuit. Use an ohmmeter or test light to measure continuity between the pair of wires that connect to each cap. The start cap connections will read open, and will read nearly a short when the wire for rotation is reconnected. The pair of wires for the run cap will read a low resistance regardless. Now, if all these capacitor connections are inside of one enclosure rather than underneath individual covers for each capacitor, this test is not truly valid, as there is no way to differentiate which two wires connect to each capacitor.

Not sure I get this, completely. If I had a wiring diagram, well that would sort of eliminate the need for the question.
The wires are under two separate covers.

Don't see any wire that might be for reversal, but then, the wires go into a clump that is sealed.
I pulled the covers off an Emerson and a Smith in the shop, of course they have zero wiring in common with the WEG.

However, the two wires I 'think' are the start cap read almost shorted between them, while the three wires I 'think' go to the run capacitor show some resistance.

 

[Chris Adams]

Never mind. I drove the motor over to the local WEG service center. He happily told me they don't give out that information but for 100 bucks he would wire it.
WEG is no longer a motor I will bother with.
I have Baldur, Emerson and Smith, all with schematics.

 

[nehog]

...
Since it is from 2006, WEG doesn't even acknowledge the motor, much less the wiring.
...

That is a major WTF there! 2006 is almost new in the electrical motor field.

Never mind. I drove the motor over to the local WEG service center. He happily told me they don't give out that information but for 100 bucks he would wire it.
WEG is no longer a motor I will bother with.
I have Baldur, Emerson and Smith, all with schematics.

Good move, WEG will be off my list if this is the case. I'd write a letter to WEG's home office, report the entire situation, and explain that you have posted this on the Internet in a forum. Be nice, but explain that you are deeply concerned about their level of customer service, and the ethics of their service center employees. Again, be nice. Worse they can do is ignore you, but you might get lucky and find you have everything you need, probably at no cost.