Can you mix R22 and 407C?

Can you mix R22 and 407C?

Mixing R22 with R407C or any other refrigerant. According to the 609 EPA rule, mixing refrigerants is illegal and anybody caught doing so will be heavily fined. If your system is running on R22 most likely is using mineral oil to lubricate the compressor.

What is R407c refrigerant used for?

R-407C is a non-azeotropic mixed refrigerant composed of the three ingredients R-32, R-125, and R-134a, and was developed as a substitute refrigerant for R-22, used in applications such as air conditioning equipment and chiller equipment for medium temperature ranges.

What is the standing pressure of a R407c?

If this is so always evaporating above zero, 4 or 5 deg celcius, R407c will have a low pressure (suction) of about 50 psi. and a high pressure (discharge) of about 280 psi, which is about 55 deg celcius, cooling cycle. Standing pressure (system not running) will depend on surrounding temperature of outdoor unit.

What is the normal operating pressure for a 407C?

Thereof, what is the normal operating pressure for 407c? If this is so always evaporating above zero, 4 or 5 deg celcius, R407c will have a low pressure (suction ) of about 50 psi. and a high pressure ( discharge ) of about 280 psi, which is about 55 deg celcius, cooling cycle.

What is R407c oil?

R-407C is a zeotropic blend of R-32 (Difluromethane), R-125, and R-134a (Tetrafluoroethane). It is not a drop in replacement on R-22 machines. If you wish to use this product you will need to vacate all of the old R-22 out of the system. This is due to the R-22 systems using mineral oil and this HFC blend using POE oil.

How long will R-407C be around?

It is difficult to say exactly how long R-407C will be around. With each year that passes the R-22 machines grow older and older. By the year 2030 there will be very few of them left. Before then though, R-407C will still be needed. Let’s take a look at our pressure chart: