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j.ahmed
25-05-2010, 05:26 PM
Hi,
I have a chiller emerson 1200 kw running r 407c
can we change r 134a
what we have to do , which size expansion valve required etc

regards

j.ahmed
25-05-2010, 05:30 PM
chiller free cooling condenser how you to clean it all we have scale

james10
25-05-2010, 05:31 PM
buy a new chiller if you really want 134a that much. new compressors new evaporator,new expansion valves the list goes on

Brian_UK
25-05-2010, 08:28 PM
Following those questions I would suggest using a suitable chiller engineer to provide the service or advice for you.

sendhilkmar
26-05-2010, 01:11 PM
R134a pressure and Capacity are much lower than R407C. hence TXV and heatexchanger size would differ. If you use a same compressor with R134a then you would get only 70% capacity of R407C

The Red Krawler
26-05-2010, 01:42 PM
Why would you WANT to change to R134a? :\

mohamad soltan
13-06-2010, 05:57 PM
i think each refrigerant has properties