Wiring a Ring Blower

[Time to grow]

I wonder if I could get some direction on wiring this Ring Blower as per the attached image. I am looking to wire it for single phase 220 V. The Ground terminal is clearly labeled but I am uncertain about the hot and neutral.

 

[stouricks]

What is it about your own photo you do not understand?

 

And a re-worded title might help!   PML

[Metropolitian]

The two 'marked' in redbrownish color are the L and N

Connect the L at the left (where the yellow wire is)  and N in the middle  (the red and blue wire).

 

 

[RichCor]

20 minutes ago, Metropolitian said:

The two 'marked' in redbrownish color are the L and N

Connect the L at the left (where the yellow wire is)  and N in the middle  (the red and blue wire).

Interesting. That's NOT the way I would have interpreted the plastic relief graphic, as it appears to show a External Capacitor on the left two terminals, and 220V (no polarity) on the middle and right.  

 

...but then, I'm looking at the photo upside down!

So Metro would be correct. Just remember to leave the External Capacitor wired as is.

 

Edited July 11, 2020 by RichCor

[Crossy]

I agree with @Metropolitian on the connections, the photo of the lid appears inverted vs what's in the photo of the box.

 

If it rotates in the wrong direction (sucks rather than blows) swap the incoming L and brown capacitor lead.

 

[ravip]

7 hours ago, Metropolitian said:

The two 'marked' in redbrownish color are the L and N

Connect the L at the left (where the yellow wire is)  and N in the middle  (the red and blue wire).

 

 

Just a small clarification of the colour codes- Connect the L at the left (where the yellow wire is)  and N in the middle  (the red and blue wire).

 

Normally, Green/Yellow is Ground, Brown L, and Blue N, isn't it?

 

 

[Crossy]

11 minutes ago, ravip said:

Normally, Green/Yellow is Ground, Brown L, and Blue N, isn't it?

 

Yes (or Green, Black, White - US codes but often used in Thailand), but once we get into "universal" motor wiring internals all bets are off.

 

The two "marked" terminals are the supply, connect either way round it will still function. Ground goes to the stud bottom right marked as such.

[RichCor]

11 hours ago, ravip said:

Normally, Green/Yellow is Ground, Brown L, and Blue N, isn't it?

That would be normal for 'consumer facing' single-phase color coding. 

 

But when you're dealing with a device that can be driven single-phase or 3-phase, or a jumper lead feeding an external part, then extreme caution should be exercised when 'interpreting' wire color codes as it can get confusing quick, especially once you're past the 'consumer facing' access bits.

 

Hopefully you're just asking about the cable you have on hand to use in ultimately powering up the darn thing.

[Metropolitian]

This was indeed a 'tricky one'.

 

The main feed would be at the right side, same side as where the connection clamp for the earth is too.

The cable gland which is 'free' and bigger then the other is also on that side.

 

Then I observed the cap wiring, the lid and the embossed wiring diagram made the conclusion that the mains wiring should be at the marked tabs.

 

-And- I saw that the lid can only fixed in one position, as the height is not the same. Not squared but triangle/trapezoid.

 

The picture of the motor itself is inverted , obvious as cable glands usually are on the "bottom side"  (quotation marks, as it's neither top or bottom in this situation but from the view of installer it is).

 

And the picture of the 'Star' connection gave out the definite confirmation

This setup is a delta wired configuration with the cap acting as phase shifter.

 

If the motor rotates in the wrong direction, then yep, the brown wire has to be moved to the 'marked tab' as in @Crossy's comment.

 

 

Tip for the OP: When connecting the wires, make sure the wire for the earth is longer (even longer then needed to get to the clamp) so that when the cord is accidentally pulled the earth connection is disconnected as last and not before the other two (L + N)