Results 1 to 11 of 11
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08-06-2010, 05:39 AM #1
System requirements changing from R-22 to R-410A
I have to design a new system using refrigerant R-410A instead of using R-22
What would be the changes required???
Plz even if you show me the right path i may be able to follow and get solution...
Plz sir help me!!!
I have to operate between temperature limits of 45 degree celsius (condenser) and 2 degree celsius (evaporator).
Any type of help would be grateful
Thanks in advance
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08-06-2010, 11:43 PM #2
Re: System requirements changing from R-22 to R-410A
Have you already designed an R22 unit ?
Brian - Newton Abbot, Devon, UK
Retired March 2015
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09-06-2010, 05:36 AM #3
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09-06-2010, 11:34 PM #4
Re: System requirements changing from R-22 to R-410A
Use the appropriate components suitable for the higher pressures.
Brian - Newton Abbot, Devon, UK
Retired March 2015
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10-06-2010, 01:30 PM #5
Re: System requirements changing from R-22 to R-410A
Tube Size could be one step lower than R22 but wall thickness should be higher.
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11-06-2010, 07:53 AM #6
Re: System requirements changing from R-22 to R-410A
sendhilkmar,
thanks for the info.
i know that the system pressures of r-410A is 50-60% higher than the R-22 and its latent heat capacity is also higher than r-22 because of which u gave me that suggestion.
But instead of using a thicker and smaller dia pipe for connections if i use the thinner ones but of larger dia. will it pose me any difficulty???
waiting for reply
thanks in advance!!!!
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11-06-2010, 11:44 PM #7
Re: System requirements changing from R-22 to R-410A
Pipe must be suitable for the refrigerant being used regardless of size.
What sort of systems are you designing?Brian - Newton Abbot, Devon, UK
Retired March 2015
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12-06-2010, 10:21 AM #8
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13-06-2010, 08:34 AM #9
Re: System requirements changing from R-22 to R-410A
Recently I have inspected by Eddy Current Tubing Examination on "York" Chiller Mode: YSCBCAS35CD D on the Condenser and Evaporator Enhanced Copper tube.
The Evaporator tube size OD 3/4" diam x 1.75 mm wall thickness and under the fins wall thickness 1.25 mm wall thickness.
The Condenser tube size OD 3/4" diam x 2.11 mm wall thickness and under the fins wall thickness 1.5 mm wall thickness.
The refrigerator use 132b.
Hope this will help you on the design.
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13-06-2010, 11:31 AM #10
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14-06-2010, 11:23 AM #11
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