in a recovery bottle and use it when it leaks again. What can we use to replace R-404A? The same applies for new installations at medium temperatures, including R134a. For a complete list of Copeland approved lubricants, refer to Form 93-11. 4. Freon™ MO29 (R-422D) Refrigerant. It should not be mixed with R-22 or any other refrigerant. The problem with R134a conversion. This option replaces R-22 in air commercial and residential AC systems. Genetron 407C is not a “drop-in” Replacement. Genetron 422D is a “near drop-in” replacement. R-407C should be used only in systems that currently use R-22. R417A is the zero ODP replacement for R22 suitable for new equipment and as a drop-in replacement for existing systems. Compressor capacity will be comparable to R-22 in medium temperature applications. Climalife UK. It is a zeotropic blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a). With new R12 no longer being manufactured, the market price soared to $100/pound. There are currently no restrictions on equipment or use of the following refrigerants: R134A, R407C, R410A, and R417A. 01-19-2017, 05:49 PM #6 What your Section 608 Certified Technician will need to do is recover all existing R-22, pull a vacuum on your system and then charge it back up with a new drop in refrigerant like R422D, MO99, R407C or whichever R22 Replacement would be applicable to your system. Freon™ 407C (R-407C) Refrigerant. 134a turns into 407C but the unit is overcharged by 30 So, keep that extra 30 lbs. 3. 10th November 2015. 407C is 52% 134a, add around 5lb of R-32 and r-125 and bingo! 5. Check with With legislation leading the drive towards using lower GWP refrigerants, this month we are looking at R404A alternatives on the market. DuPont designed 407c and 410a refrigerants as the HFC replacements for R22 coolant used in home air conditioning systems. For smaller refrigeration systems, below 2 kW, R134a and R1234ze are well established as well as hydrocarbons (R600a and R290) offering high efficiencies. The mass flow differences as well as the slightly different operating pressures should be evaluated. Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure. R-407C cylinders are colored burnt orange. Is thier a problem with substitution of the r407c with R134a? These coolants match R22 in terms of energy efficiency and are superior to R134; however, 410a cannot be used in a retrofit -- it must be installed as part of a new system, whereas 407c can. Hi On a very remote minesite that I work at we have a Donaldson CQ0850ab air dryer. 407C are Polyol ester lubricants. Now the unit needs re gassing and the ID plate shows that it takes R407c refrigerant (1.7kg) which would be fine if we had some one ticketed to handle the R407c. 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