The Pressure/Temperature (P/T) chart shows that the saturated vapor temperature, at the dew point, of R-407C for 79 psig is = 51°F. If the actual refrigerant temperature is 60°F the superheat is 9°F.
Q. Can you use 134a gauges with R22?
R134a refrigerant is an alternative that contains no chlorine and hence no ozone depletion potential. It’s a greenhouse gas, though, and it doesn’t work as well as R22. Secondly, can I use the same gauges for r22 and r410a? No, you cannot.
Q. IS 407C a direct drop in for R22?
The outcome of R407C as a drop in replacement of R22 has been reviewed in this paper. R407C has zero ODP and considerably GWP as compared to R22. The releasing of refrigerants in the surroundings becomes the cause of issues pertinent in environment.
Q. What is the best drop in replacement for R22?
The best replacement for R-22 Freon is usually R-407c. It has a very low loss in capacity (0 – 5%) relative to R-22 and is less expensive than many other R-22 replacement refrigerants.
Q. What oil does 407C use?
polyolester oil
Q. What happens if you put 410A in a R22 system?
If that’s so, then what R22 there is in the system can never evaporate under the higher suction pressure of R410a. It will just flood back to reduce the compressor life and will greatly reduce the system capacity.
Q. Is venting R134a illegal?
Venting refrigerant into the atmosphere is no longer permitted. All refrigerant (R12 or R134a) must be recovered from the vehicle’s A/C system prior to opening the system for repairs. The refrigerant must then be recycled to meet certain purity standards.” R134a can be legally vented to atmosphere.
Q. Can R12a and R134A be mixed?
According to this guide, R12a does not require a vac, you can just recover your R134a into a suitable container, and then charge with R12a.
Q. Is R12a better than R134a?
HC-12a provides better cooling than an R-12 system retrofitted to R-134a, with much greater energy efficiency as well. Unlike R-134a, HC-12a is completely compatible with the hoses and oils used in R-12 systems, making the conversion much easier to accomplish.
Q. Can I use 12a refrigerant instead of 134a?
I don’t have any experience myself with these refrigerants, but Redtek 12a is an approved substitute for 134a, and it’s compatible with the POE oil in 134a. Personally I would never mix refrigerants. I would add only 134a to your existing charge, or recover and recharge with Redtek 12a.
Q. Can you mix different types of freon?
You’re wondering if you can mix different refrigerants for your air conditioning system. The short-long-only answer is no, never. The chemical makeup of replacement refrigerants is designed to mimic the operating pressures and temperatures of R-22.
