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KCromwell.AES
13-11-2013, 09:40 PM
I have a 404a glycol chiller that doesnt have a typical expansion valve. On the high side I have a copper bulb, into a smaller diameter copper, then into 3/8" evap coil. Im new to components. Can someone explain what ive got?
KCromwell.AES
13-11-2013, 09:45 PM
Is the small diameter copper a metered orifice?
Brian_UK
13-11-2013, 09:47 PM
Sounds like you have a capillary expansion device.

See...

http://www.acr-news.com/news/news.asp?id=658
Gary S
13-11-2013, 09:49 PM
Sounds very like a cappillary system, presume theres no liquid receiver?
KCromwell.AES
13-11-2013, 09:55 PM
Out of compressor into condensor, out of condensor into copper bulb into small diameter tube.
KCromwell.AES
13-11-2013, 10:03 PM
Pretty application specific seems like. Damn. Im upgrading compressor from 3/4 to 1.5hp. Im guessing ill need an expansion valve.
monkey spanners
13-11-2013, 11:11 PM
Pretty application specific seems like. Damn. Im upgrading compressor from 3/4 to 1.5hp. Im guessing ill need an expansion valve.

What do you hope to achieve with the planned upgrade?
nike123
14-11-2013, 06:14 AM
Unbalanced system. More fun!;)