Retrotec 451 DucTester - Manual (Page 2)

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
Page 2
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