There are currently no restrictions on equipment or use of the following refrigerants: R134A, R407C, R410A, and R417A. Freon™ 407C (R-407C) Refrigerant. Hi On a very remote minesite that I work at we have a Donaldson CQ0850ab air dryer. This option replaces R-22 in air commercial and residential AC systems. Genetron 407C and Genetron 422D are HFC-based refrigerants that normally utilize synthetic lubricants. 10th November 2015. R404A has traditionally been used in commercial, industrial and transport refrigeration for many years. The same applies for new installations at medium temperatures, including R134a. It should not be mixed with R-22 or any other refrigerant. 134a turns into 407C but the unit is overcharged by 30 So, keep that extra 30 lbs. 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. R417A is the zero ODP replacement for R22 suitable for new equipment and as a drop-in replacement for existing systems. 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. R-407C should be used only in systems that currently use R-22. 407C are Polyol ester lubricants. 407C is 52% 134a, add around 5lb of R-32 and r-125 and bingo! Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure. This non-ozone depleting hydrofluorocarbon (HFC) refrigerant replaces R-22. We have lots of guys ticketed for R134a. We can see A2L-R454A, R455C and R1234yf emerging for new systems. It is a zeotropic blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a). Genetron 407C is not a “drop-in” Replacement. Climalife UK. 4. With new R12 no longer being manufactured, the market price soared to $100/pound. 3. What can we use to replace R-404A? 5. The mass flow differences as well as the slightly different operating pressures should be evaluated. Freon™ MO29 (R-422D) Refrigerant. Genetron 422D is a “near drop-in” replacement. 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. Compressor capacity will be comparable to R-22 in medium temperature applications. R-407C cylinders are colored burnt orange. For smaller refrigeration systems, below 2 kW, R134a and R1234ze are well established as well as hydrocarbons (R600a and R290) offering high efficiencies. 01-19-2017, 05:49 PM #6 Check with In the years following the switch to R134a, there was confusion over what was required to maintain the A/C of older cars. R-407C is a mixture of hydrofluorocarbons used as a refrigerant. The problem with R134a conversion. DuPont designed 407c and 410a refrigerants as the HFC replacements for R22 coolant used in home air conditioning systems. For a complete list of Copeland approved lubricants, refer to Form 93-11. in a recovery bottle and use it when it leaks again. Is thier a problem with substitution of the r407c with R134a? With legislation leading the drive towards using lower GWP refrigerants, this month we are looking at R404A alternatives on the market. , pentafluoroethane ( r-125 ), and R417A R417A is the zero ODP replacement for R22 suitable for new and. 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