Is it mandatory to replace the line set if your replacing the a coil and condensor and going from r22 to r410a? I've heard conflicting answers. Thanks for the help!
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Is it mandatory to replace the line set if your replacing the a coil and condensor and going from r22 to r410a? I've heard conflicting answers. Thanks for the help!
If i was putting a system in for myself i would run a new line set, i would prefer to run a new line set on customers work too, but often they only look at the price.
Is it mandatory? No, Is it advisable? Yes.
Also depends on the quality of the existing pipework, is it suitable for the potential higher pressure?
Hi Brian_UK,Quote:
Originally Posted by Brian_UK
for R22 head pressures are abt 300 psig max.
how high is it for R410 gas.
Regards
Kssoin
Kssoin, you can find this pressure in a log p/h chart of R410a, almost double.
Will yu not change the compressors?
If you perform after your job a pressure test on 1.1 x the max pressure your R410a system ever will see and it withstands this test pressure, well, then you can let your system run on the old pipework.