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Thread: oil control systems
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14-02-2008, 02:51 PM #1
oil control systems
Does anyone have any drawings or diagrams on oil control systems or know of any websites/webaddress wher i can get some?
im having difficulty finding anything!
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14-02-2008, 03:39 PM #2
Re: oil control systems
What aspect of the oil are you trying to control? With out a perpos it is rather difficult to even begin!
What is the type of plant, the refrigerant, temp rang, compressor type.
Are you trying to control: Oil pressure, temp, quality, recovery, sepperation?
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14-02-2008, 03:44 PM #3
Re: oil control systems
It is for a multi evaporator, multi compressor system like a pack unit where the oil levels need to be monitored and controlled throughout the system!
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14-02-2008, 03:53 PM #4
Re: oil control systems
Ok, so you want to ensure equal distrobution and levels amongst the compressors?
And are they Hermetic or semi, are they using oil pumps or just splash lubricated?
Oh and what system do you currently have in place and what is the reason for switching over, or is there no system in place and an issue has arrised to prompt you wishing to install one?
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14-02-2008, 03:58 PM #5
Re: oil control systems
hermetic compressors
no system in place at the moment?
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14-02-2008, 04:05 PM #6
Re: oil control systems
Ok so we have a rack of Hermetics, For that We need to ensure they have equal amounts of oil, Simplist way would be to install equalizing ports in the sum of the compressors and allow gravity to do the job.
Issues with this: All compressors must be level and the internal crank case pressure must be equal, Piping lay out must be well don with proper slopping.
Benifits cheap, efficient and verry little to go wrong and cheap
Active system would involve an Oil seperator, resavour, check valve, Oil level floats on the compressors
Benifites: Oil does not go through the evaps, and is returned straight to the compressors, piping layout is not as critical
Disadvantages: More costly, complex, more potential parts to fail.
I got to blitz but I'm sure others will take on where I left off!
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14-02-2008, 05:53 PM #7
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Re: oil control systems
Download this!
http://tinyurl.com/3yg62v
Also on Copeland site you have AE bulletins with lot on this subject
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14-02-2008, 06:37 PM #8
Re: oil control systems
Thanks nike123
thats the sort of thing i was looking for but if any one else has any drawings/diagrams or downloads they would be much appreciated!.
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14-02-2008, 10:59 PM #9
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14-02-2008, 11:12 PM #10
Re: oil control systems
Here's another link to Temprite's site. Pretty good stuff.
temprite.com/main_content.asp?sitename=temprite&pagename=resources
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15-02-2008, 12:36 AM #11
Re: oil control systems
You could also have a look at the Henry website and download docs such as ...
http://www.henrytech.com/Tips/HT-TT6.pdfBrian - Newton Abbot, Devon, UK
Retired March 2015
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