Ventamatic CX36BD2SPD - Manual (Page 6)

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INSTALL THE SHUTTER
*Note* Never operate the fan without the shutter installed.
Before installing the shutter, it is necessary to caulk the seams
of the frame for an air-tight seal. The shutter itself is 7/8-in larger
all around than the shutter opening.
Draw alignment marks on the ceiling to indicate the outer edges
of the shutter frame. Refer to the Shutter Dimension Chart on
page 2 for size.
Install the shutter using the white-headed wood screws provided
with your fan.
1/2-in deflection
PREPARE AND INSTALL THE FAN ASSEMBLY
IMPORTANT: Your new whole house fan is packed to prevent shipping damage.
Before installing the fan in your attic, it must be prepared as follows.
Belt Drive Models Direct Drive Models
•
The motor is mounted to the underside of the
struts for shipping.
•
Remove the hardware and remount the motor to
the top side of the struts.
•
IMPORTANT: DO NOT OVERTIGHTEN THE
BELT!
•
Position the fan belt on the pulleys and adjust it
to fit snugly, ensuring it is not over tightened –
with about a 1/2-in deflection.
•
The hub of the fan blade assembly should be
facing up towards the roof.
•
Check and tighten the fan blade set screw be-
fore operation.
•
For easiest installation, remove the fan blade in
order to wire the motor.
•
The blade must then be replaced and firmly se-
cured before attempting to operate the fan.
•
The hub of the fan blade assembly should be
flush with the end of the motor shaft, facing away
from the motor towards the roof.
•
Check and tighten the fan blade set screw be-
fore operation.
Hub facing towards attic roof
Push the fan assembly up diagonally through the shutter opening. If you have chosen a Joist-In
Installation, you will need to use some other attic access for the fan, since the fan will not fit through the
shutter opening with the joist(s) in place. Place the fan frame on top of the facing, or the additional frame,
if you built one.
*Note* To provide a good seal between the fan housing and facing (or additional frame), and to
minimize noise, you may wish to install a felt strip or foam tape between the fan frame and
the facing (or additional frame).
Center the fan assembly on the facing and draw alignment marks around the wooden base.
Secure the fan assembly to the facing using screws. As you anchor each corner, be sure to check that the
fan frame has not moved off the alignment marks.