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Retrotec 451 DucTester User Manual

Page 2

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Prepare the ducts

Connect tubes & controls

Connect Flex to Fan

Connect Flex to ducts

2

5

4

3

Ensure sealing is complete

Blank off ductwork

Connect yellow and green tubes between
DucTester and gauge

Plug in the Speed Control Cable between
DucTester and Gauge

Install Range 47 Flow Plug

Attach 4 inch (100 mm) Flex to ductwork

Connect Flex Duct to fan outlet for

pressurization

On Model 451 you can depressurize ducts

by attaching the Adapter onto Fan inlet and

attaching the Flex to it

47

Inlet

with Range Plugs

airflow

Outlet

airflow

Inlet with

Flow Plugs

Flex duct

adapter

Flex connects

here

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