screw compressor

[orland25]

Hi friends; OK I am a little confused with a noise. I 100 TON screw comp, with economizer too,this chiller is york model YCAS0440E. Four compressor in the unit.Ok I listen a noise inside the compressor like a AIR LEAK. All pressure it/s OK but I listen that noise. Any idea to be appreciated

[joeywpittman]

try to explain the sound that you heard in more detail.

[orland25]

it/s like you press the (spray can)noise shshshshshshsh

[orland25]

any idea about that noise?

[freeon king]

does it have hot gas bypass?

[richvito]

Liquid injection......................................... ..

[tech cr]

It could be the internal relief valve in the compressor. I wouldn't worry too much about it. Unless it causes problems.

[service guy]

Originally posted by tech cr
It could be the internal relief valve in the compressor. I wouldn't worry too much about it. Unless it causes problems. WHAT?????

[tech cr]

opps! Its a screw compressor. Some recips have internal reliefs.

[Edited by tech cr on 04-06-2005 at 10:13 PM]

[jtricor]

Not related to the ssssssssssssssssssssssshhhhhhhhhhh noise
but what does an economizer do on a chiller?? or is it really a low ambient control

[joeywpittman]

no, it is an economizer.
it economizes

[djken]

Economizer = Motor cooling

[joeywpittman]

the Economizer is a refrigerant to refrigerant, compact
plate-type heat exchanger to maximize chiller capacity
and efficiency by subcooling liquid refrigerant
delivered to the cooler expansion valve.