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#1
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How do I add freon to a portable air conditioner?
On 7/20/2020 11:56 PM, Ralph Mowery wrote:
In article , says... He did use a self piercing fitting.* He also had three cans of R134. Fix the leak?* Nah just keep adding.* Gauges?* Nah, when it get cold you are good.* Well, maybe. The equipment he had put together was probably with a few bucks shy of just buying a new unit.* What could go wrong? He showed exactly where he fixed the leak. With solder. The leak was fixed, Then he added the number of ounces of refrigent that was listed on the lable. Only thing I see he missed was the oil of r22 is not compatiable with 134a and can cause problems down the line. When he soldered he also added contamination. Depending how mich there may be no effect or it will crap out in hours. When I ran the department building AC coils we ran nitrogen through them while brazing. |
#2
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How do I add freon to a portable air conditioner?
On Tuesday, July 21, 2020 at 11:39:07 AM UTC-4, Ed Pawlowski wrote:
On 7/20/2020 11:56 PM, Ralph Mowery wrote: In article , says... He did use a self piercing fitting.Â* He also had three cans of R134. Fix the leak?Â* Nah just keep adding.Â* Gauges?Â* Nah, when it get cold you are good.Â* Well, maybe. The equipment he had put together was probably with a few bucks shy of just buying a new unit.Â* What could go wrong? He showed exactly where he fixed the leak. With solder. The leak was fixed, Then he added the number of ounces of refrigent that was listed on the lable. Only thing I see he missed was the oil of r22 is not compatiable with 134a and can cause problems down the line. When he soldered he also added contamination. Depending how mich there may be no effect or it will crap out in hours. When I ran the department building AC coils we ran nitrogen through them while brazing. I didn't watch the video, but if he soldered, that's lower temperature than brazing, so the need for nitrogen to avoid oxidation gunk is lower. There is a higher content solder with more silver in it that behaves similar to solder but is stronger. The company that makes it has videos showing that under pressure, joints that are brazed fail before the ones using their solder. Apparently the brazing heat weakens the copper next to the joint. |
#3
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How do I add freon to a portable air conditioner?
On Tue, 21 Jul 2020 11:39:02 -0400, Ed Pawlowski posted for all of us to digest... When he soldered he also added contamination. Depending how mich there may be no effect or it will crap out in hours. When I ran the department building AC coils we ran nitrogen through them while brazing. +1 -- Tekkie |
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