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USB to power outlet to charge the gauge. □ Connect yellow, green and blue tubes to the gauge. Gauge remains connected like this for all tests. www.retrotec.com Support: (888)330-1345 International: +1(604)732-0142 Made in Everson, WA, USA QG351 Page 1 of 4...
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Prepare the gauge Step 2: Connect to ducts Make sure DucTester 350 is showing on the □ Turn off air-handler Home screen. and remove all filters. If not, tap the fan picture, then , tap DucTester 350, then select the range that you have installed.
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Step 2: Connect to ducts (cont’d) Total Duct Leakage Test: Depressurize □ Ready to conduct the test by depressurizing the ducts: Connect Flex Duct Adapter to fan inlet for depressurization. Exhaust depressurize airflow Inlet with Range Plugs inside the Adapter To pressurize, connect the Flex Duct Adapter to fan exhaust.
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Get the results you need Step 5: Desired results not achieved? □ Tap the [Channel B] key to select a different Flow reads “--” at test pressure? Result, or tap the [Result to be displayed] key If the test pressure has been reached, but “--” appears, on the [Settings] menu.