Remember Me? Page 1 of 2 1 2 Last Jump to page: Results 1 to 13 of What is the difference between the two refrigerants? What difference does it make if I use A in an air conditioning application or use a C in a refrigeration application? PHM The conventional view serves to protect us from the painful job of thinking. Also slightly lower discharge temps.
Knowledge is knowing that a tomato is a fruit. Wisdom is knowing not to put it in a fruit salad. When a blend has different letters after the same number A and Cit means they have different percentages of the same refrigerants used in the blends.
They both have the same refrigerants in their blends, just different ratios. EugeneTheJeep liked this post. So high DSH is my only concern? Anybody know How High? And this was a real problem with mineral lube oils as thermal oil breakdown would coke up the valves.
Synthetic oils would have also solved the problem but Dupont makes refrigerants and not lube oils. I wonder if there is any synthetic refrigeration oil which will both play nice with the grade refrigerants And remain stable at high temps? Any ideas?St john riruta mass schedule
We have a couple stores with C for medium and low temp. Actually POE has a better tolerance for high temperatures. I've attached a spreadsheet showing the chemical makeup of some of the popular R replacements.
It's also the higher percentage of R which causes the RF to have discharge temperatures much closer to R I have heard that c doesn't have that great of oil return so using on a rack with an oil seperator is why it is for supermarkets.
Originally Posted by bunny. Didn't even know there was a F. I just spoke with my supply and they only stock 2 jugs Fand said they almost never sell it Anyone use it?
Hey Poodleits been a few yearsare you currently stocking both A and C? Page 1 of 2 1 2 Last Jump to page:. Please read thisRC is a mixture of hydrofluorocarbons used as a refrigerant. It is a zeotropic blend of difluoromethane Rpentafluoroethane Rand 1,1,1,2-tetrafluoroethane Ra.Lofi drum kit
Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure. This refrigerant is intended as a replacement for R R production will be phased out by as per the Montreal protocol. It is not recommended to drop RC into R systems on top of the existing charge in cases of low refrigerant levels. A licensed professional should be contracted to completely remove the R and as much of the mineral oil as possible.
R404A – the alternatives
In the case of compressor change-outs, replacement compressors are already manufactured with POE polyolester oil and are therefore more compatible with RC than returning the recovered R The recovered R can be sent to a facility for disposal.
It is cost effective to replace R with RC before there is an emergency. Preventive maintenance programs should include strong suggestions to replace ozone-depleting refrigerants such as R with environmentally friendly refrigerants and it seems that RC has become the front runner. This is why they are being phased out according to the Kigali amendment of the Montreal protocol.
There are many millions of tons of R in air conditioning and refrigeration equipment in use today and most of it is destined to end up in the atmosphere in spite of efforts to curtail this probability. These efforts have been in place since the late s. From Wikipedia, the free encyclopedia. Redirected from Rc. This article contains weasel words : vague phrasing that often accompanies biased or unverifiable information. Such statements should be clarified or removed. August Retrieved 27 June Categories : Chemistry stubs Refrigerants Greenhouse gases.
According to the EPA rulemixing refrigerants is illegal and anybody caught doing so will be heavily fined. Although you may this restriction is primarily political we would like to give you a basic education to explain the two most devastating effects of such action:.Wallpapers electronic arts
To the environment. R22 is a HCFC chemical gas that create a chain reaction in the stratosphere and thin the ozone layer that protect us from the UV light of the sun. When you mix this chemical with any other refrigerant most likely an HFC you create an imbalance on the final substance that can result on even more dangerous effect on our planet.
Once HCFC and HFC are mixed into your system will be impossible to re-separate unless processed through a specific reclaim facility the individual components and most likely you will end up with the need of incinerate the bland extremely expensive procedure!
To your AC System. If your system is running on R22 most likely is using mineral oil to lubricate the compressor.
If you mix RC with R22 inside your system the molecule of the HFC RC 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.
No need to say this will result in catastrophic failure of the compressor and most likely you'll need to replace the whole unit. Anything below this amount you may want to stick with R Subscribe to our newsletter to learn about special offers. Although you may this restriction is primarily political we would like to give you a basic education to explain the two most devastating effects of such action: To the environment.
Kim, S. Kim, and S.Remember Me? What's New? Results 1 to 6 of 6. Thread: Ra vs Rc. Ra vs Rc. Hi guys. So a fairly simple question. We still have plenty of R22 plants here in New Zealand and more and more often we have to retrofit.
Rc, in my opinion, is a high temp refrigerant, suited to air conditioning applications. The question is, at what point do we choose Rc over Ra, in regards with evaporating temperature etc. My way of thinking says if you're evaporating over 0 degrees C then go with c, anything below go with a.
I'm interested to hear opinions either way. Re: Ra vs Rc Here's a research report on the fractionation of RC and here's a blast from the past. I'm back on the Pale. If the World did not Suck, We would all fall off! Re: Ra vs Rc Hi, rc is a good gas for use in AC, you can also use it for low pressure installation.
But is runs on POE-oil and if you want to retrofit the system you need to flush the oil 3x for 24 hours. Best regards Peter.
Re: Ra vs Rc sorry i forgot ra runs C degrees 0. Re: Ra vs Rc Thanks for the input guys. I realise we'll need to carry out a few oil changes but that's n drama.
We are using R a bit but I see it as a temporary fix rather than a permanent solution, I'm aware of the problems it causes with the o-rings, the R22 swells the o-rings but they contract with the Ra causing the leaks. The system I'm thinking about is an air conditioning system on a Superyacht, 4 x Copland scrolls, water cooled condensers, easy oil changes.
My main concern is efficiency. RE The time now is PM. All rights reserved.
This forum and its pages must not be copied or reprinted without the written consent of Refrigeration Engineer. This forum is a free and open discussion board.One of the hottest discussions pardon the pun within the air conditioning and heating industry is the difference between two refrigerants — R and RA.
Newer air conditioning models are designed to be used with RA for reliable and more efficient operation. Because RA can absorb and release more heat than R, your air conditioning compressor can run cooler, reducing the risk of compressor burnout due to overheating.
RA also functions at a higher pressure than R, so new compressors are built to withstand greater stresses, reducing the chance for cracking. If you were to put RA refrigerant into a system designed for R, the pressure would be too much and the unit would break. All air conditioners use an oil to keep the compressor lubricated during operation.
R air conditioners use mineral oil and RA systems use synthetic oil. The synthetic oil is generally more soluble with RA than mineral oil is with R This means the RA system operates more efficiently reducing wear and tear on the compressor.
Instead, a technician is required to come out to your home and install the R refrigerant. First, gift your unique view of the world.1969 camaro for sale pa
Instagram is a place where you make and play your own lifestyle. Check what photos get the most likes. Instagram users select illustrations in light tones, following lightening filters, preferring blues rather than shades of red.
You can apply filters from Instagram, but you can then use more powerful apps, such as Vsco, Afterlight or Snapseed, in which we will locate a lot of great effects and editing options for our photos. The mobile and free! Afterlight is actually quite a easy tool, but it contains every the necessary functions and as many as 74 substitute effects. One of the most fascinating options is play up Tone, which allows you to turn up the blue color, which gives the photos a cleaner, fresher look. It will permit you to acquire effects thesame to professional equipment.
This application has been attributed by time and Wall Street Journal for making re all shot look native and great. Instagram is a area where you make and pretend your own lifestyle. Check what photos acquire the most likes. Instagram users pick illustrations in blithe tones, bearing in mind lightening filters, preferring blues rather than shades of red.
You can apply filters from Instagram, but you can after that use more powerful apps, such as Vsco, Afterlight or Snapseed, in which we will locate a lot of great effects and editing options for our photos. Afterlight is actually quite a simple tool, but it contains every the vital functions and as many as 74 alternative effects. One of the most engaging options is draw attention to Tone, which allows you to incline in the works the blue color, which gives the photos a cleaner, fresher look.
It will allow you to get effects same to professional equipment. This application has been official by grow old and Wall Street Journal for making as regards every shot see original and great. While it might not be recommended.Refrigerators have become common among all households.
They are no longer considered for they well up families. The appliance come in handy in food preservation thus avoiding spoilage. Do you know What makes the refrigerator to work efficiently? Refrigerator happen to have parts attached working together to achieve the results we get.
Taking one component and giving further discussion the good and the negative parts of it. We also get to know what best alternative and the harmful part of it.
Still not sure of the device it happens to gas substance. Today we will discuss refrigerant. What is a refrigerant? What the purpose? Which is the best refrigerant gas to use?
With all this points at place let get down to work. The refrigerant is liquid in form but transforms to gas and back to liquid again. A bit of science, however in the recent past most of the refrigerator operates have been using Fluorocarbons and chlorofluorocarbons gases for their refrigerators and freezers. Nonetheless new discoveries have been made and the technology taken a new turn. Scientist have studied the gases and realized the harm which can be caused by continue use of this gases.
But what the big deal with gases?leadhua refrigeration
The refrigerators still cools my food and drinks? They are said to be harmful to the ozone layers and can be explosive to some point and guess what? Very flammable. I can only imagine the thoughts running in your mind. Actually we have been living with an explosive in our house. Anyway with new discoveries this gases are being phased out and we are in the era of refrigerants like RRR, R etc.
With more study we learn that refrigerants have three classes. They are divided according to absorption and the heat extraction. What is R- numbering? It is a way to identify the molecular structure of a refrigerant.
Whether made of a single halogenated hydrocarbon. Taking an example. This the common and most popular refrigerant for the domestic refrigerators. It has been in use and was the first to phase out other gases.Share best practices, tips, and insights. Meet other eBay community members who share your passions. Skip to main content. Go to My eBay page.
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R407A/F: Low-GWP alternative to R404A in commercial refrigeration systems
Did you mean:. What's Ra ,R22, and Ra refrigerant difference? Aug 4, AM. Dear friends, Ok, now every one calls upon " green society, green environment" ,so many customers want to find the best refrigerant and it is easy to take goods after the goods arrived in ur port.
So, now i want to tell the main three kinds refrigerant, R22, Ra ,Ra. Thank you! Message 1 of 1. All forum topics Previous Topic Next Topic.
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