Can I replace R12 with R134a?
No. Federal law prohibits topping off an R12 system with a different refrigerant. Your options are to locate some R12, however you must be certified to purchase, and add it with an R-12 recharge hose.
Can R134a replace R409A?
No you can not MIX refrigerants and unless the oil in that compressor is POE your friend WILL have problems down the road! The only people that can mix refrigerants today are producers like Chemours or Arkema. Anything else is amateur hour.
What is R409A used for?
R409A, an HCFC-based refrigerant, is a cost-effective retrofit refrigerant for R12 stationary positive displacement air-conditioning and refrigeration systems such as walk-in coolers, beverage dispensers, vending machines, and supermarket systems.
What refrigerant can mix with R12?
R134a is a safer replacement for R12. Another major difference is the type of oil both refrigerators require. R12 is compatible with mineral oil, and most R12 systems use this. R134a uses Polyalkylene Glycol (PAG) oil.
How do you convert R12 to R134a?
Example: (2 lbs. x 0.9) – 0.25 lbs. = 1.55 lbs. This indicates that an R12 charge level of 2 lbs. converts to an R134a charge level of 1.55 lbs. While the formula above is helpful, you might be strapped for time and need an answer quickly.
What type of oil should I use when replacing R-12 with Freon™ 409A?
Original equipment manufacturers (OEMs) recommend using either mineral oil (MO) or alkylbenzene (AB) oil when replacing R-12 with Freon™ 409A. Many applications don’t require oil replacement; consult your OEM to find out when AB oil must be used. Freon™ 409A is a nonflammable hydrochlorofluorocarbon (HCFC) based refrigerant.
What is R 409A refrigerant?
As various global regulations drive the gradual phaseout of certain refrigerants, the Freon™ brand continues to develop alternative refrigerant options, including Freon™ 409A (R-409A) refrigerant. Freon™ 409A carries an ASHRAE A1 safety classification and blends R-22, R-142b, and R-124.