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Is R409A drop-in for R12?

FAQs william November 2, 2022

R409A was one of the most commonly used blends for drop-in replacement in plants using R12 [6].

What type of refrigerant is R12?

Dichlorodifluoromethane (R-12) is a colorless gas usually sold under the brand name Freon-12, and is a chlorofluorocarbon halomethane (CFC) used as a refrigerant and propellant in aerosol sprays.< /p>

Can you add R134a to a R12 system?

No. Federal law prohibits topping up an R12 system with any other refrigerant. You have the ability to find some R12, but you must be certified to purchase it, and add it with an R-12 refill hose.

What does Hotshot 2 replace?

An R-12 Refrigerant Substitute

Freon Hot Shot™ 2 (R-417C) refrigerant is a non-ozone-depleting hydrofluorocarbon (HFC) substitute for these refrigerants. Freon Hot Shot™ 2 can be used in most retrofit applications for systems currently using R-12 or R-12 blends including: R-401A.

What is R409A used for?

R409A, an HCFC-based refrigerant, is a cost-effective retrofit refrigerant for stationary positive displacement R12 air conditioning and refrigeration systems such as walk-in coolers, beverage vending machines, vending machines, and supermarket systems.

Is R134a a direct replacement for R12?

R134a is a safe replacement for R12. Another key difference is the type of oil that both refrigerators require. R12 is compatible with mineral oil and most R12 systems use this. R134a uses polyalkylene glycol (PAG) oil.

Is 134a a direct replacement for R12?

Replacement for R12

The best replacement for R12 is R-134a. The chemical name of R134a is tetrafluoroethane and its chemical formula is CF3CH2F. It is a hydrofluorocarbon (HFC) and has zero ozone depletion potential and very low global warming.

Is there a drop-in replacement for R22?

Description. RS-44b (R453a) is the latest R22 drop-in replacement refrigerant in the US market. RS-44b sold worldwide for the last 5 years, branded as RS-70 outside the US. It is the closest replacement for R22, operating at a very similar outlet pressure, cooling capacity and flow rate to R22.

Why did R134a replace R12?

R12 contains CFCs like hairspray once did, potentially damaging the ozone layer. It was banned because of this potential environmental risk and replaced by 134a because 134a has less negative environmental impact than R12 when using synthetic oil versus mineral oil.

Is R134a better than R12?

Understand that R12 has its advantages. R12 can blow 6 to 7 degrees cooler than R134a and is 15% more efficient. R134a systems require larger condensers and higher operating pressures than R12 systems because R134a does not have as high a heat transfer rate as R12 (which has a heavier molecular size than R134a).

What is the conversion from R12 to R134a?

Understand that R12 has its advantages. R12 can blow 6 to 7 degrees cooler than R134a and is 15% more efficient. R134a systems require larger condensers and higher operating pressures than R12 systems because R134a does not have as high a heat transfer rate as R12 (which has a heavier molecular size than R134a).

Can you still buy R12 freon?

It is illegal to make new R12, but it is not illegal to sell or use R12. And many of the bottles and canisters of Freon R-12 that were sold in the United States for decades are still around. Many chillers and even refrigerators and cars that were made before the Montreal Protocol were still in use.

Will r22 work in a R12 system?

These are two completely different refrigerants,do not mix at all. But if it does explode, you have the decency to tell the service tech what you did. I’ve had an R12 in the basement for a long time. I only use it a few times on my old car (but the car was gone for ten years) so I think it has plenty left.

When retrofitting a system from R12 to R134a what is required to be done quizlet?

What to do when converting a system from R-12 to R-134a? Retrofit stickers must be attached to the vehicle where they are clearly visible.

What does r417 replace?

R417A was launched years ago and is also sold under the trade name ISCEON® MO59 (Chemours). This substitute for R22 contains the mixture components R125/R134a/R600 and differs significantly from e.g. R407C with a correspondingly high proportion of R32.

Can you mix R-12 and 409a?

Yes, you can refill the same refrigerant.

What replaces R502 refrigerant?

Refrigerant R404A is accepted as an alternative to R502 in the new units. It can also be used to fill some systems that run on R502, such as: B. commercial refrigeration systems of large general stores, refrigeration systems of food industry factories, transport refrigeration systems.

What is r408a used for?

R-408A is a retrofit solution for medium and low temperature refrigeration systems currently using R-502. R-408A should not be mixed with R-502 or used to make up the charge of an existing system running R-502. R-408A is not intended for use in new equipment.

References:

  1. https://www.degruyter.com/document/doi/10.1515/eng-2017-0011/html
  2. http://ijrar.com/upload_issue/ijrar_issue_1175.pdf
  3. https://en.wikipedia.org/wiki/Dichlorodifluoromethane
  4. https://www.acprocold.com/faq/can-i-add-r134a-directly-to-my-r12-system/
  5. https://www.freon.com/en/products/refrigerants/hot-shot-2
  6. https://www.agas.com/au/products-services/refrigerants/r409a/
  7. https://www.techtownforum.com/knowledge-base/what-happens-if-you-put-r134a-in-an-r12-system/
  8. https://www.brighthubengineering.com/hvac/63345-replacement-for-r12-refrigerant/
  9. https://www.refrigerantdepot.com/product/rs-44b-refrigerant-drop-in-replacement-for-r22/
  10. https://www.originalair.com/r12-vs-r134a
  11. https://newoldcars.com/r134-conversion-think-twice-before-you-do-it/
  12. https://www.electronicshub.org/r-12-to-r-134a-conversion-chart/
  13. https://refrigerantfinders.com/what-is-refrigerant-r12/
  14. https://hvac-talk.com/vbb/threads/78023-R12-mix-to-R22
  15. https://quizlet.com/374014364/ac-diagram/
  16. https://www.bitzer.de/shared_media/html/a-540/en-GB/160311051161582091.html
  17. https://hvac-talk.com/vbb/threads/599322-R-12-to-409a
  18. http://www.allchemi.com/eng/refregerants/service2.html
  19. https://www.rsd.net/fx/pdf/suite/arkema_forane/Forane_R408A_Spec_Sheet.pdf

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