how to mire compressor motor when the cover is missing

[socalmerc]

how to wire compressor motor when the cover is missing

i have a quincy compressor that is missing the cover wiring diagram . i want to wire for 220v and the motor is single phase. is there a standard way to do this or do i have to take it in to have it done. the motor is a balder.

 

[930dreamer]

What model of Quincy compressor is it, can you post some pictures?

 

[socalmerc]

yeah i will take some pics tomorrow

 

[930dreamer]

The motor tag should have a low and high voltage diagram, ie wire numbers xyz connect together for 220v etc. Looks like a model 325 that is on another thread here, no expert.

Look at this thread.
http://www.garagejournal.com/forum/showthread.php?t=129400

 

[socalmerc]

What model of Quincy compressor is it, can you post some pictures?

it actually looks like yours in the pic

 

[930dreamer]

it actually looks like yours in the pic

Nope, that ones a Kellogg American 352.

 

[socalmerc]

heres the pics of it

 

[nehog]

It appears (but hard to see exactly) the motor is 208-230 volts (will work OK on 240, btw) already. Can you perhaps clean and reshoot the picture of the motor's data plate?

 

[socalmerc]

ok. sorry about that. i will do it tomorrow and thanks for your help

 

[Charles (in GA)]

I'll bet this compressor had a motor starter on it originally and someone cut the wires to remove it. Given the amperage, I'd say it needs a starter.

For general info, and comparison, THIS THREAD and THIS THREAD ALSO deal with magnetic starters for compressors. Both are recent threads. I cannot see trying to operate this compressor without a starter as it draws 26-28 amps, more than the average pressure switch can handle.

Charles

 

[PT Doc]

Condor makes pressure switches that have protection up to 30 amps. It is adjustable to the amps that you need. Graingers price is about $150.

 

[Charles (in GA)]

Condor makes pressure switches that have protection up to 30 amps. It is adjustable to the amps that you need. Graingers price is about $150.

http://www.condor-usa.com/Catalog/catalog.pdf

Apparently only for three phase switches. Cannot find any for single phase that offer thermal protection.

Charles

 

[DistantHorizon]

http://www.condor-usa.com/Catalog/catalog.pdf

Apparently only for three phase switches. Cannot find any for single phase that offer thermal protection.

Charles

I believe he needs to use a 3-phase starter and skip one of the legs. The magnetic starter I just used has a decal inside that tells how many amps it is rated for for both single and three phase.

Compressor guy who helped me out ended up just getting me an old 3-phase starter after his supplier said they could not get a suitable single-phase unit.