11
INSTALLATION (continued)
Fix the round duct joint firmly by adding 2
screws supplied on its rear side, then attach
the supplied soft tape around the duct joint.
(1) First, remove half-cut rectangular part
of the rear plate (duct knockout) using
a mallet, hammer, etc.
(2) Mount the supplied 3¼"×10" rectangular
duct joint with 2 screws.
Note
The wider side directs downward.
(3) Then attach the supplied soft tape around
the duct joint. To close the opening of the
top plate, attach the supplied cover plate
with 2 screws.
In Case of 7" Round Vertical Discharge
In Case of 3¼"×10" Horizontal Discharge
correct
wrong
7" Round
duct joint
Soft tape
Cover plate
Duct joint
Duct knockout
Engage with
the notches
Hit dented points on
the rectangular edge
Soft tape
CAUTION
• Do not apply excessive force
when removing the knockout.
The fan may be damaged.
