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Thread: Refrigerant Leakage
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16-05-2006, 04:24 AM #1
Refrigerant Leakage
Hi all,
What would be the most accurate way of detecting the slightest leakages in condensor/evaporator coils of R22 units?
Regards
Pravin
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16-05-2006, 04:39 AM #2
Re: Refrigerant Leakage
Electronic leak detector or ultrasonic leak detection would provide the best sensing capabilities I believe.
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16-05-2006, 06:13 AM #3
Re: Refrigerant Leakage
At least pressurise it with OFN till max allwoable pressure, mostly 25 bar (363 psi) and do it the way USICeman said.
It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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16-05-2006, 04:59 PM #4
Re: Refrigerant Leakage
If Aircooled Condenser, Isolate, Remove And Pressurize , Seal It And Dip In Water .
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17-05-2006, 11:14 PM #5
Re: Refrigerant Leakage
I usually use UV leak detector for very small leaks.
a problem shared is a problem halved
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18-05-2006, 12:44 PM #6
Re: Refrigerant Leakage
Soapy water spray and nitrogen is a good way to pinpoint them after first finding with an electronic.
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18-05-2006, 03:25 PM #7
Re: Refrigerant Leakage
The electronic leak detectors I came across have not proved to be reliable enough.
I was able to let it buzz by farting.
What brands and models are you guys using?
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18-05-2006, 06:08 PM #8
Re: Refrigerant Leakage
proper fridge bloke, even farts R22,stick some die in,go on holiday for a week,come back with the lamp and all will be revieled,leak detectors,lost count and interest,use one then check it with bubley.
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21-05-2006, 12:53 AM #9
Re: Refrigerant Leakage
Leak checking a supermarket with 3 miles of pipe and 3,000 lbs of hfc gas is a challenge. Anybody have experience with UV dies and large refrigerant charges? I have heard horror stories about using dies. The cleanup, etc. And the underground, of course. Infra-red detectors seem to be holding up and telling the truth better than heated diode types, in my narrow experience. I also use an ultra-sonic, but I am on a learning curve with it.
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21-05-2006, 09:06 AM #10
Re: Refrigerant Leakage
the thread states the coils whitch are accessable though i agree with the usage of other methods also,underfloor leaks etc are a nightmare,thank god there relitivly rare.
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21-05-2006, 09:38 AM #11
Re: Refrigerant Leakage
try to use MAPP GAS. flame color will change if you have a leak and you will smell the gas and oil odor of the system. one of the best aside from soft.
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21-05-2006, 03:17 PM #12
Re: Refrigerant Leakage
Can I tell u ,speaking of Mapp Gas went on a site once with a senior tech to find a leak on a outdoor condenser,(walk-in-cooler)it was a pin hole found easy with soap and water ,the tech said since it was a small hole,alot had not leaked out(that was his conclusion) so he grabed his torch and started to,in his words "close the pin hole" when he started, I asked "is that safe" hoping he would wake up,his reply was it will be "quick" so i quickly left the roof on my way down the ladder he passed me going down this was after the condenser blew.
The old gas detectors with the hose MAYBE but a regular MAPP GAS not for me bud
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