Can I Use R134a in a R22 System
-
Charging R22 to a R134A Unit of measurement What happens?
Anbody mistakenly added R-22 to A R134A system?
Or any other refrigerants on other units.
Feed back is appreciated.TIA
Roger
- I had a call where the engineer admitted to me he charged a unit of measurement with R-11 instead of R-12.
Originally Posted past rctech 
Anbody mistakenly added R-22 to A R134A arrangement?
Or any other refrigerants on other units.
Feed back is appreciated.TIA
RogerInformation technology cleaned the system up similar no tomorrow but slugged the compressor.
If yous
did it come clean. It will help the adjacent guy make sense of it all.This guy
did after I put him under the lite in the back room and I respect him for that
-
I saw the reverse washed. A guy charged R-134 into an R-22 system. Was proud of it, too. Replaced the TXV and everything.
Held about the aforementioned suction force per unit area that a R-22 unit would have. Non proficient on 134.
I sucked the 134 out, re-replaced the TXV, pulled a good vacuum and weighed in virgin 22.
In this instance, no harm was done to the unit of measurement.
- What was his reasoning behind information technology? Did y'all talk with him about it or did you just come in behind him to clean up the mess? Originally Posted by jpsmith1cm
I saw the reverse done. A guy charged R-134 into an R-22 system. Was proud of it, too. Replaced the TXV and everything.
Held about the aforementioned suction pressure level that a R-22 unit of measurement would have. Non proficient on 134.
I sucked the 134 out, re-replaced the TXV, pulled a good vacuum and weighed in virgin 22.
In this case, no damage was washed to the unit of measurement.
Too did he attempt to change out the oil? What kind of system was it?Last edited by Bill Bednarick; 03-15-2009 at eleven:12 AM. Reason: More than questions.
-
r-22 in 134 system = loftier head on compressor valve which could and probably volition impairment compressor. even changing txv volition not cease loftier caput.
-
-
He saw a sticker on the compressor (a replacement) that said R-134a. That was enough to change the unabridged operation of the case.
This was a small self-contained bakery block example. Structural concepts if I recall orrectly. Can compressor. No changes other than those indicated.
TXV was r-22. Case model tag said R-22. Every one I've always worked on has been R-22.
Aye, I called him and he explained his logic(?) to me.
I was there to replace the compressor because information technology wasn't pulling depression enough suction with the new gas??
Sometimes I wonder.
-
R-22 is a high pressure refrigerant and R-134a low pressure refrigerant. Past charging a R-134a organization with R-22 the compressor displacement changes causing hi compression ratios, high discharge line temperatures. Compressor overheating and tripping on the overload. If not corrected the pump will fail. Recover the R22 change the drier pull a good deep vac and weight in the correct amount of R-134a. Later on the system is running bank check the compressor amps.
-
The style I read the original postal service information technology appears he is referring to calculation R22 to a system which already has R134A in information technology....ie, mixed refrigerants.
What would happen to a system'south operation would of grade depend on how much R22 was mixed with the R134A. I don't know for sure, simply i would expect an increased suction and discharge pressures, higher amp describe and loss of proper superheat control with a TEV. Originally Posted past rctech Anbody mistakenly added R-22 to A R134A system?
Or any other refrigerants on other units.
Feed back is appreciated.In any case, it's a no-no and should be corrected.
-
Source: https://hvac-talk.com/vbb/threads/246842-Charging-R22-to-a-R134A-Unit-What-happens
0 Response to "Can I Use R134a in a R22 System"
Post a Comment