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can you use 407c with r22

by Braxton Cartwright Published 3 years ago Updated 3 years ago

Freon™ 407C has been a popular R-22 replacement because of its properties, which include:

  • Similar cooling capacity, energy efficiency, and pressures as R-22 in systems
  • An ability to be topped off after a leak, multiple times, with minimal impact on system performance
  • Safety; Freon™ 407C has an ASHRAE A1 safety classification

R-407C should be used only in systems that currently use R-22. It should not be mixed with R-22 or any other refrigerant. 5. The capacity of the existing R-22 thermal expansion valve (TEV) will be approximately the same when using R-407C.

Full Answer

What refrigerant is being used to replace R22?

What is the Best R-22 Alternative Refrigerant Today?

  • The Third Option. There is a third option for homeowners or business owners who are faced with this decision. ...
  • DuPont/Chemour’s MO99 Alternative. In my opinion there is only one safe and trustworthy R-22 alternative refrigerant on the market today and that is Chemour’s MO99 refrigerant.
  • Conclusion. ...

What is r22 and why is it phasing out?

R22 was a commonly used refrigerant that is being phased out because of its harmful impact on the ozone layer. If your HVAC system uses R22, don’t panic -- you can still use and maintain your system as normal. But, when it’s time for your system to be replaced, you’ll need to upgrade to a more environmentally-friendly alternative.

Is R407c a drop in for R22?

The outcome of R407C as a drop in replacement of R22 has been reviewed in this paper. As per Montreal Protocol, R22 is going to be phase out due to its unfavourable impacts related to environment e.g. ozone depletion potential (ODP) and global warming potential (GWP). R407C has zero ODP and considerably GWP as compared to R22.

Can R134a replace R22?

Can you replace r22 with r134a? If you have a home or auto air conditioner designed to work with R22 refrigerant, and the system needs a recharge, a number of issues prevent the direct substitution of R134a. R134a has a lower thermal conductivity than R22, so an R134a system needs a larger heat exchanger.

Can I drop 407C on top of R22?

If you mix R407C with R22 inside your system the molecule of the HFC (R407C) gas will not link with the oil and in just few months of operation you will have a "sludge" like lubricant formation inside the circuit.

Can you put R22 in a 407C compressor?

An R-407C compressor and an R-22 compressor are the same mechanically. The difference is that an R-22 compressor will have mineral oil in it and an R-407C compressor will have POE oil in it. R-22 will happily run over POE oil so the answer is: yes; that R-407C compressor is also compatible with R-22.

What refrigerant can you mix with R22?

The most commonly mixed refrigerants in the field are the replacements for R-22 — R-427A, R-438A, R-422D, and R-407C — which are often combined with the remaining R-22 in the system, said Maiorana.

IS 407C similar to R22?

Unlike R22, R407C is a mixture of three refrigerants, which boil at different temperatures. R407C has a range or glide of approximately 5ºC. What will change? For the Specifier, very little apart from access to jobs requiring a refrigerant that does not contain chlorine.

What is the best drop in replacement for R22?

The best replacement for R-22 Freon is usually R-407c. It has a very low loss in capacity (0 – 5%) relative to R-22 and is less expensive than many other R-22 replacement refrigerants.

Are 407C pressures compared to R22?

Devotta et al. (10) informed that R407C had higher pressures than R22 with discharge pressure of R22 being at 2193 kPa for the lower outdoor conditions and 2784 kPa for the higher outdoor conditions. For all operating conditions, the discharge pressure of R-407C is varied in the range 11-13% higher than R22.

What is the difference between R22 and R407C?

The R407C compressor shows exergy efficiency higher than the R22 one due to its better isoentropic efficiency. R22 condenser exergy efficiency is higher than the efficiency ofR407C. Exergy efficiency of the R22 expansion valve is much higher than exergy efficiency of the R407C expansion valve.

What happens if you mix Freons?

What Happens to Your AC System if You Mix Refrigerants? Mixed refrigerants can cause increased system pressures and temperatures changing them for the worse. This can result in ineffective compressor cooling and possible compressor damage, ineffective cooling, and metering device malfunction.

WHAT IS 407C refrigerant used for?

Product summary. 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 type of refrigerant does 407C replace?

R-22Freon™ 407C has been a popular R-22 replacement because of its properties, which include: Similar cooling capacity, energy efficiency, and pressures as R-22 in systems.

What pressure does 407C run at?

Recovery of R-407C requires a cylinder with a service pressure of 300 psig minimum. National Refrigerants, Inc.

Can you still use R407C?

There are currently no restrictions on equipment or use of the following refrigerants: R134A, R407C, R410A, and R417A.

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