testo 557s vacuum decay test using the bluetooth testo 552i. why u don’t use refrigerant hoses
Published 3 years ago • 37K plays • Length 21:27Download video MP4
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after 12 hours of vacuum decay test testo 557s & refrigerant hoses.
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vacuum decay test with refrigerant hose will always fail !!!!…. dry is the secret 🤫 
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why you do not want to use refrigerant gauge manifold and refrigerant hoses poor vacuum decay test
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2ed video update testo 557s refrigerant gauge low side passes nitrogen pressure decay test.
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pt:5 testo 557s passed vacuum decay test. decay up to 200 micron after 4 hours
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pt:7 testo 557s refrigerant gages deep vacuum test after silicone grease applied to o-rings
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pt:3 testo 557s overnight vacuum decay test.
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testo 557s pulling overnight vacuum. another problem to add to testo’s long list of problems 557s
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2:08
vacuum decay test performed correctly what will your results look like. like this
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4:16
3rd leak detection for the testo 557s failing nitrogen decay test. (it’s the hose seal)
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testo 557s pressure test mode
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557s testo refrigerant gauge fails nitrogen pressure decay test ? or was it the hoses ?
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micron gauge battery died after one hour 18 minutes while i was at a log recording that sucks