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Thread: Precision AC
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22-05-2009, 07:32 AM #1
Precision AC
What exactly is precision AC technology?
How different is it from conventional window ACs?
Where is it required?
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22-05-2009, 11:26 PM #2
Re: Precision AC
I suppose that is what we would call "Close Control" systems.
To provide close-control air conditioning you have to control both temperature and humidity levels.
To accomplish this you often have to cool the air to reduce the humidity, then re-heat it so that the temperature is comfortable, then put more water vapour into the air to return the humidity back to acceptable levels.Last edited by Brian_UK; 22-05-2009 at 11:28 PM.
Brian - Newton Abbot, Devon, UK
Retired March 2015
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28-05-2009, 08:55 AM #3
Re: Precision AC
Precision cooling is all about sensible cooling. it provides about 95% sensible cooling. it is manily used for electronic cooling such as datacenter, telecom units,etc
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28-05-2009, 09:12 AM #4
Re: Precision AC
how can we calculate total cooling capacity & sensible cooling capacity of the unit. Is there any formula for calculating this?
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02-06-2009, 08:37 AM #5
Re: Precision AC
It depends of size of the unit, coil temperature, room temperature and relative humidity in the room. For standard conditions % hum(50% or 40%) and room temp (Db 24C) you may find in technical manual of any manufacturer of close control systems.
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18-08-2009, 06:37 PM #6
Re: Precision AC
normally close control units use EXV or TXV?
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06-11-2009, 11:47 PM #7
Re: Precision AC
normally CRAC's use TXV's
EXV's are available as an option for most manufacturers
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25-02-2010, 10:43 AM #8
Re: Precision AC
hi everybody, precisian ac is provide for utility cooling not for human comfort, its maintain temperatur and humidity so precisian.depend on setting utility.
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08-03-2010, 11:56 AM #9
Re: Precision AC
Precision air-conditioning systems regulate temperature and humidity for sensitive technology.
Its continuous operation reliably ensures the high availability of computer systems.
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