SpudFiles

Good day,

I took the compressor from my old air con but I have a few questions about the compressor; I have uploaded a few photos so that you may get a clearer view.

The compressor is connected to a capacitor that has a few wires sticking out - red, black, black, and white. My question is, which wires go to which wires from the plug? The plug has an earth wire, a blue wire, and a brown wire. Also, where should I connect the earth wire?

My second question is, my country's power supply is 220-240 volts AC, 50 cycles per second, which I assume fits the compressor. However, I am afraid of issues that may result from faulty wiring or whatever electrical problem there may be as this is my first time extracting a compressor. Therefore, my question is, what safety measures should I heed?

During operation, will I get a nasty shock if I touch the capacitor? Also, will I still get a shock after the power supply is off?

My last question is, simply, how many psi can I get the compressor to load? Or does it depend on the volume of my chamber?

Okay, thank you for taking time to answer my queries!

As for the pressure, that small chart with "LOW" and "HIGH" seems to tell you though i'm unsure what that means and what the "TP", "AP" and "DP" means. But i'm assuming the best case scenario is 4.4Mpa, which is 44 Bar (about 650PSI).

try looking up the wiring for a capacitor start motor, sorry I couldn't help more, is there any writing on the different probes of the capacitor?

That compressor looks reasonably similar to the one I have out of an A/C.

You should look through this thread and you'll find some info about how I wired mine.

iknowmy3tables wrote:try looking up the wiring for a capacitor start motor, sorry I couldn't help more, is there any writing on the different probes of the capacitor?

There are no writings on the probes but I called my local technician and he taught me how to wire. The compressor now works like a charm. I'm surprised by how quiet it is!

Thanks everyone for all the tips!

Can you please show us how you did it?

Of course.

The neutral wire (blue) from the plug goes to the capacitor's black wire. The white wire from the compressor goes to the plug's live wire (brown). The earth wire is connected to the copper pipe. Here's a photo.

cool.. Have you considered putting all the cables and the capacitor inside some sort of a box (project box, junction box, whatever you call it)

sorry I couldn't help with the wiring, but I've never had an AC compressor and most of you guys get AC compressors not fridge compressors..

maybe you could post a nice diagram of the wiring and then this could be sticked (or daberno's thread could be sticked) somewhere ?

POLAND_SPUD wrote:cool.. Have you considered putting all the cables and the capacitor inside some sort of a box (project box, junction box, whatever you call it)

sorry I couldn't help with the wiring, but I've never had an AC compressor and most of you guys get AC compressors not fridge compressors..

maybe you could post a nice diagram of the wiring and then this could be sticked (or daberno's thread could be sticked) somewhere ?

I'd love to help but the start, run, and common ports are cased up and I can't see which wire is connected to what.

Also, there are no indications on the overload's probes so I can't give advice on that as well. I just left it as it's original configuration when I dismantled it from the AC.

Perhaps Daberno could help since he fixed most of the wires himself. Hmm...