![]() Non-condensable gases (in most cases surrounding ambient air), are not able to condense inside the air conditioning condenser, unlike refrigerant gases like R-134a or R-1234yf. Non-condensable gases (ambient air) inside the a/c system. What happens if you don’t vacuum the AC system? ![]() ![]() How many microns does it take to evacuate an AC system?Ī vacuum of about 500 microns or 29.92 hg gauge pressure is needed for removing any moisture that may have entered the system along with the non-condensable gases while it was open. Pulling a deep vacuum should be combined with the replacement of the ac receiver/drier or accumulator that will help to keep moisture inside the system under control. A vacuum of about 500 microns or 29.92 hg gauge pressure is needed for removing any moisture that may have entered the system along with the non-condensable gases while it was open. With a vacuum pump connected to both, low and high air conditioning system sides pull a deep vacuum for at least 5-45 minutes. The best way to remove non-condensable gases (NCGs) is to pull a deep vacuum in the system. How long should I evacuate AC system?Īfter a system has been opened for any repair, service or installation even for a short amount of time the a/c system should be evacuated. In the HVAC industry, the process of removing both air and water vapor is referred to as Evacuation. Removing water vapor from a system is known as dehydration. Removing air and/or other non-condensable gases from a system with a vacuum pump is called degassing a system. Air contains oxygen, nitrogen, and water vapor, all of which are detrimental to the system. When systems are assembled or serviced, air enters the system. Let us help you lower your keys to keys, and severity at the same time.Refrigeration systems are designed to operate with only refrigerant and oil circulating inside them. We are much faster and more cost-effective than the dealer. That’s right! There’s no longer a need to send that vehicle to the dealer and wait several days to get it back, just to have the AC charged. MAP now offers onsite service for all of your R-1234yf needs. That is why we have invested in the latest refrigerant technology. ![]() Wouldn’t it be great if there was a way to charge that R-1234yf system while your tech was still assembling the vehicle?ĭon’t worry, Mobile Auto Pros has you covered! We know how important cycle time is to our clients and their insurance partners. ![]() The majority of these vehicles end up back at the dealer after reassembly to charge the AC, costing you precious cycle time and lost man hours shuttling the vehicle back and forth. Seeing a return on investment could take years for a shop that only services a couple of these vehicles per month. Until the market starts to become densely populated with these newer vehicles, it just doesn’t make good business sense to purchase a machine. This number will only grow as R-134a will be banned from newer models in the United States by 2020.īeing that this technology is so new, we understand that not all shops are ready to invest in it fully. Currently there are approximately thirty-five million cars world wide that are using R-1234yf. Making its debut in the early 2000s, it has quickly risen to power and will soon be the dominant refrigerant in the automotive industry. R-1234yf is soon to be one of the most popular refrigerants in the world. ![]()
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