User's Manual
Page 13
5. Back Draft Shutter System
Figure 5
Mount shutter system as close to
Isodrive fan as practicable
Direction of
airow
Direction of
airow
To fan
Flexi duct
Flexi duct
Use duct tape to secure exi
duct to shutter system
In line shutter system
Back Draft Shutter System for 150mm Ducting
This back draft shutter suitable for Isodrive 650 motor only.
Air ow
IMPORANT
If shutter system is mounted in the
horizontal position, shutter shaft
should be vertical.
Part number: 150mm in line BDSS.