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02-22-2013, 07:32 PM #1
Gauges for different refrigerants
what are your beliefs on using the same gauges for different refrigerant systems?
r-410a with r-22 for example.
Do you believe it will cause compressor and txv failures?
02-22-2013, 07:35 PM #2
Until me and sman met and got married,, I always used separate gauges (22 every day, 22 4way evac, 410 every day, 410 4-way evac) since the honeymoon stage me and ms. Sman share the love with everyone....
02-22-2013, 07:36 PM #3
may be this should be moved to tools and test equipment?
02-22-2013, 08:41 PM #4
I've used my DC (and YJ analogs before that) on various systems containing probably a dozen different refrigerant and at least 4, if not 5 different types of oil.
As long as good procedures are followed, there isn't a problem.
02-22-2013, 09:22 PM #5
Yep good techniques are the most important. Me personally has not fallen on the digital bandwagon.
And I have a Poe set and a mineral set. Basically like the resolution difference.
02-22-2013, 09:23 PM #6
02-22-2013, 09:35 PM #7
Whys that jp I don't have a problem personally.
02-22-2013, 09:40 PM #8
02-22-2013, 09:34 PM #9
Same gauges all the time. I try to do the pull the through technique when removing them(sucking everything through low side) and then I leave the ball valves open so nothing is left in it. I purge the hoses with system pressure every time I hook(I dont work on critically charged systems)
I've already seen dry r-22 units and replacement compressors using POE so trying to keep gauges dedicated to one type of oil would be hard.
02-22-2013, 09:43 PM #10
I see what you mean about that but you will admit the degree difference between 0-5 is negligible.
02-22-2013, 09:54 PM #11
Actually don't admit that should have looked before. Lol.
02-22-2013, 09:58 PM #12
02-22-2013, 09:56 PM #13
10 degrees is negligible?
1# = -12.3F
5# = -3F
While you can interpolate between gauge lines, even the difference between 1 and 2 psig is nearly 3 degrees.