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19-02-2009, 12:01 PM #1
thermostatic expansion valve sizing
hi all,
i have a 1TR r22 air conditioning unit for my experiment in college. it has a capillary tube & an automatic expansion valve for the expansion purpose. we have to install a TEV to control the superheat in the system. Problem is that we are not able to find a TEV for a 1 TR unit. the lowest i found is Pr no 2059, DANFOSS, it is sized for a 4.5TR unit. Is it ok to use this valve for our purpose?
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19-02-2009, 12:31 PM #2
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Re: thermostatic expansion valve sizing
No, you have Danfoss T2/TE2 valves with orifices which will match your system capacity from 0,15 to 4,5 TR.
For your case, TX 2/TEX 2-1.0 with orifice no 2 is probably best.
http://rc.danfoss.com/TechnicalInfo/...CPDAA0A302.pdfLast edited by nike123; 19-02-2009 at 12:33 PM.
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03-03-2009, 03:22 PM #3
Re: thermostatic expansion valve sizing
hey thanks nike123, i purchased the valve that you mentioned. I learnt a few practical things , while searching the shops & I realize how stupid my first post looks. But as your signature says, its just easy:-p.
thanks again
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