2 Speed Compressor

[jdunc2301]

Hi all,

I was working with a Bristol compressor today, haven't really paid attention to the wiring as im just doing the comp change after another guy diagnosed.

It's a two speed compressor, Low and High....obviously

My question is, there are 3 contactors labelled for this one compressor (no i haven't looked at wiring etc waiting on a wiring diagram Wednesday)

Contactor 1- Compressor 1 Main
Contactor 2- Compressor 1 Low speed
Contactor 3- Compressor 1 High speed

So how would this work then? 3phase comp by the way

Thanks

[Brian_UK]

My answer would be to lead you to wiki-answers...
http://wiki.answers.com/Q/How_do_you...e_power_supply

[jdunc2301]

Good man! Also answered a few other quirks in my head

Thanks

J

[Brian_UK]

Sorry, head quirks are a different department...

[install monkey]

fyi its star delta (3 contactors)

[monkey spanners]

Have a look here also,

http://www.refrigeration-engineer.co...+speed+bristol