R-22 is a colorless gas that is used as a propellant and refrigerant. The technical name for this gas is chlorodifluoromethane.
R22 (commonly referred to by the brand Freon) is not a toxic substance. Its main danger would be the potential for oxygen displacement just as any other gas that is heavier than air, causing symptoms of asphyxiation. Some people may be highly sensitive to environmental substances in general, and have an asthmatic type response to R22. In the scope of a home system for example, unless the system is leaking the better portion of its charge in a matter of a day or two, there is no danger to the home or inhabitants. In rare cases, very rare, ammonia or an uncommon refrigerant could be used, but the majority of home A/C's for generations have been R22.
Any amount would be a contamination. Charging with clean R410a does not introduce POA oil, which is where a serious contamination would occur. Mixing R410a without oil will simply render that amount of charge in your system as ineffective. To answer the question how much contaminates, it could be seen on a sliding scale, a very small amount, say a couple ounces, probably will not see a noticeable change. A pound, and you would likely notice some changes in performance related to temps. of evaporator as well as the amount of liquid refrigerant its producing to send to the evaporator. As you increase the ratio of R410a to R22, you would only see incrementally worse performance as the compressor is not producing the pressure required to get any use of R410a. If you had somehow introduced R410a with its oil, their would be a serious reason to pull the entire charge, flush the system, and start clean. The oils of R22 and R410a are %100 not mixable, they will be rendered useless, and system damage will occur shortly.
true because for a liquid to change into a gas you would put it on the stove and use double times as much heat to boil it into a gas- so if it's gas to liquid it's the opposite so yes it would decrease
Wal-Mart do not have r22 freon, this is a false ad.
r22a
No
no.
12 r22
sorry, no.
No
No
yes
No, R22 is for refrigerators and home AC. It runs at a different pressure and you can't use one for the other.
no. it is not a good idea. new hfc refrigerants require a different type of oil than the R22 units. the new refrigerants typically run at higher pressures than the R22 units.
No. There'll still be residual traces of R22, even if the cylinder is empty, and it won't blend with the R404A. Furthermore, the R22 cylinder will be labeled as such, and it's actually a crime to have such cylinders improperly labeled.