No
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.
sorry, no.
no.
No
no
No
It is not recommended.
R404A is a refrigerant commonly used in medium and high-temperature refrigeration applications, such as in commercial refrigeration and air conditioning systems. It is compatible with various oils, including polyolester (POE) oils, which are commonly used with HFC refrigerants. Equipment designed for R404A should be constructed from materials resistant to chemical breakdown and should ensure proper seals to prevent leaks. Additionally, R404A can typically be used with systems designed for R22, but retrofitting may be required.
No , they operate at different pressures and are not compatible.
Not unless you like the idea of destroying your AC system.
No, you should not mix R22 and R22a refrigerants together. Mixing different refrigerants can lead to system inefficiency, reduced cooling capacity, and potential damage to the equipment. It is important to use the correct refrigerant specified by the manufacturer for your system.
No the whole system need to be evacuated of the r22 before you put r22a in the system. It's against the law to mix 2 different freons together and also dangerous.