Is it bad to mix R12 with R134?
R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. Bottom line, R134a simply doesn’t cool as well as R12. The advantage of ester oil is that it works with both R12 as well as R134a, so you can fill the system with it and then use either refrigerant.
What happens if I put 134a in R12?
R134a systems work at higher discharge-side pressures than R12 systems, which could lead to compressor seals leaks. Additionally, since R134a is composed of much smaller molecules, it has a greater chance of leaking from an R12 system.
How long does it take for R134a to work?
A can of r134 will enter (upright only!) the system in just a few minutes if you put the can in warm water. to charge an ac system first thing you have to do is pump it down. This takes a special vacuum pump and usually about 30 minutes. Then the system is charged with 134 to about 200psi as I recall.
What happens if you put the wrong refrigerant in your car?
You cannot mix refrigerant types, and putting the wrong refrigerant in your car will cause damage to the air conditioning system! If you’re not sure which kind of refrigerant your vehicle takes, DIY A/C charging may not be for you.
How do you tell if you have r12 or 134a?
when new,it was r12. if it’s been changed over,look at the hi and low side ports. see if 134a adapters are screwed down on top of the r12 fitting ports. they will be larger.
Can you run a Toyota R134a in a truck?
Summer is just around the corner here in Sunny AZ, so I am looking at getting the AC running in my truck – ’91 V6 4WD. I need a new compressor and was planning on replacing the drier/accumulator and expansion valve as well. Since it is R12, I am considering replacing the condenser as well (+ $100) and just running R134a instead.
How much PSI is on the low side of the R134a?
R134a Pressure Gauge Chart Ambient Temperature (°F) Low Side High Side 110° 50-55 psi 335-345 psi 105° 50-55 psi 325-335 psi 100° 50-55 psi 300-325 psi 95° 50-55 psi 275-300 psi
Can a Toyota condensor be converted to R134a?
The condensor will be fine, as long as you blow all the old oil out of it. The reciever/dryer will need to be replaced, the old ones NOT being R-134a compatible (though the new ones ARE backwards-compatible with R-12). The hoses should work.
Why does the R12 compressor not cool as well as the R134a?
R134a operates at higher discharge pressure, which can cause compressor seals to leak out. The result was evident- R134a could not cool as well as R12. There was also an issue with the oil used for lubrication purposes, which was washed away in the air after being absorbed by the refrigerant.