HOW TO LEAK/PRESSURE TEST A REFRIGERATION SYSTEM USING TESTO 557.
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HOW TO LEAK/PRESSURE TEST A REFRIGERATION SYSTEM USING TESTO 557.
Pressure testing the system with my testo 557 will let you know if there’s a leak within 30 minutes, no matter how small the leak is as you see it reads pressures @ 0.1 increments, with analog gauges you would have to wait up to a day for the needle to move 4 or 5 psi so you can notice really tiny micro leaks #testo #557 #testo557
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