Blow air out of the ducts for pressurization – Retrotec DucTester 341 User Manual
Page 32
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©Retrotec Inc. 2014
6.9.2.
Blow air out of the ducts for pressurization
The only advantage of pressurizing is that it makes changing Range Rings on the fan easier. If a
pressurization test is needed, simply install the Flex Duct on the outlet side of the fan.
Figure 23: Install Flex Duct over the fan exhaust, for pressurization. Tighten the strap.
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