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Thread: purge
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10-20-2012, 02:27 PM #1
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purge
what does a purge do in a chiller
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10-20-2012, 04:04 PM #2
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Trane has a good explanation. Here is a link.....
http://www.austincc.edu/hart/lab-mat..._ctv_eb_84.pdf
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10-20-2012, 04:46 PM #3
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Removes non-condensibles from LOW pressure centrifugal chillers (R-11, R-113, R-123 refrigerants) and absorbers (different animal). Evaporator runs in a vacuum, (R-113 condenser also in vacuum or low positive) leaks (on low side) will suck air in.
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10-21-2012, 12:53 PM #4
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a purge on an absorption chiller is just a good sized vacuum pump.
a purge on a low pressure chiller separates out noncondensibles by sucking gas off the top of the condenser and running it through a little refrigeration loop. condensed refrigerant gets returned, anything that doesn't condense gets pumped out of the top of a seperator tank by a little vaccum pump.
why are you asking?
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10-21-2012, 02:53 PM #5
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Not all purge units have a refrigeration circuit
Originally Posted by automig
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10-21-2012, 05:25 PM #6
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Really? I thought That they did, which brand are you referring to? Which is the other method?
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10-21-2012, 05:25 PM #7
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Really? I thought That they did, which brand are you referring to?
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10-21-2012, 06:04 PM #8
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The York Turboguard purge doesn't use a refrigeration circuit. It uses oil pressure, a small pump, some solenoid valves, and the differential refrigerant pressure created by the chiller when it's running to separate non-condensables from the refrigerant.
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10-21-2012, 07:07 PM #9
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The turbo guard does have a refrigeration circuit. It is an evap. coil inside the tank, although it is using the refrigerant from the chiller.
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10-21-2012, 07:18 PM #10
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I guess I should have been more specific and said it doesn't have a "dedicated mechanical refrigeration circuit that is separate from the chiller refrigerant circuit like a Trane Purifier/Earthwise or Redi-Purge" Originally Posted by cperk
The one that I don't know very much of is the Carrier PreVent purge.Truth is still truth, even if no one believes it. A lie is still a lie, even if everyone believes it.
"It's called the american dream because you have to be asleep to believe it" -George Carlin
"A nation of sheep begets a government of wolves" -Edward R. Murrow
"I have problems just like you. One time, my dancing horse almost fell into my car elevator" -Mitt Romney
Buy american made goods & support locally owned businesses!
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10-21-2012, 07:41 PM #11
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Theres only one thing you need to know about the Carrier Pre Vent purge ........ TOTAL J.U.N.K ........... Originally Posted by Tech Rob
You bend em" I"ll mend em" !!!!!!!
I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
Whooo Hooo spring at last , time to get the toys out ........vrrrroooooom !!!!
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10-21-2012, 07:44 PM #12
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Every 19D I've ever seen or worked on has had a Trane purge on it
Truth is still truth, even if no one believes it. A lie is still a lie, even if everyone believes it.
"It's called the american dream because you have to be asleep to believe it" -George Carlin
"A nation of sheep begets a government of wolves" -Edward R. Murrow
"I have problems just like you. One time, my dancing horse almost fell into my car elevator" -Mitt Romney
Buy american made goods & support locally owned businesses!
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10-21-2012, 08:17 PM #13
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I've got several 19 D's with Redi Purges. At least your not running the old Skyguard or Carolina 2 stage purges, or those Enviropurges by Reftec. Seen the new gravity flow units, by Redi Controls? Supposedly a direct replacement for the purifier we'll see....
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