Retrotec Commercial 441 and 451 DucTester Manual de usuario descargar pdf (Pagina 44)

Page 44 of 56

©Retrotec Inc. 2015

Step 3 – Connect DucTester to ducts

□ Attach 4 inch Flange to ductwork.

□ Attach 4 inch collar on flex to

flange

□ Connect DucTester exhaust to

flex

□ Install Range 47 Flow Plug

Range 47 provides 52 to 206 CFM, which is sufficient to

test most duct runs.

Step 4 –Tubing, control and power connections

□ Connect yellow and green tubes between

DucTester and gauge

□ Connect blue tube to gauge and to ducts

using static probe or connection on flange

□ Plug in the Speed Control Cable between

DucTester and Gauge

□ Plug in to power source

Step 5 – Set up Test Pressure and Area in Gauge

□ Default in gauge must match the

specified Test Pressure

□

If not, tap [Settings] and

tap

Then [Set] value to specified Test Pressure.

Since you must not exceed the test pressure,

the actual pressure will be lower but entering

this default will ensure that all results are

displayed at the exact pressure entered.

□ [Area] then use the number pad and

tap [Set].

Measure the duct surface area in square feet

and enter it into the DM32. Select a limited

section of duct for which the estimated

leakage will not exceed the capacity of the test

apparatus. Area can also be accessed from

[Settings].

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Retrotec Commercial 441 and 451 DucTester Manual de usuario Pagina 44