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Thread: Refrigeration 101
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05-07-2009, 06:10 PM #1
Re: Refrigeration 101
Great one mate.
Just one question.
As you say the superheat will be high when the load is high (thats why they say you should only set the valve at design temp).
scenario, Your client is complaining of high room temperatures, So you check everything and you've got good sub-cooling, everythings is running well, but you have high air on temps and high air off temps and your superheat at the evap oulet is also high as you said.
What actions do you take??? or where do you start to confirm that there is not a problem, it's just high superheat due to pull down. I think most engineers would assume the TEV requires opening to reduce the superheat,
Like with the cappillary system, you arrive on site cabinet temps high, suction superheat high what are you checking for to confirm there is not a fault.
I'm sure you'll have the answer for us and i'm sure i missing something totally obvious.
CB
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