QBV100 10
ENGLISH
Installation (continued)
CONNECTING THE DUCT
NOTE:
For best performance, connect ducting using the shortest and straightest
possible route. Avoid installing with ducts smaller than the fan's damper. Using
flexible duct connector is recommended for the quietest possible installation. If
rigid duct is to be used, having a 1-3 feet section of flexible ducting will allow for a
quiet installation.
-
Pull existing ducting through the ceiling opening . If
existing ducting is metal you will require a short flexible
duct connector . Rigid duct may need to be cut for proper
installation .
-
Position the fan housing assembly properly and secure
existing ducting to the fan's damper .
- If using a flexible duct connector or duct adapter, use
aluminum foil tape at each end to secure the connector or
adapter to the existing ducting and to the fan's damper . See
figure 12.
-
Ensure that the fan's damper is unobstructed and able to
swivel freely .
If you are replacing an existing fan then proceed to “Securing
the Fan – Finished Ceilings” section.
If this is a new installation and your ceiling is unfinished,
proceed to “Securing the Fan to The Ceiling Joists –
Unfinished Ceilings” section.
SECURING THE FAN - FINISHED CEILINGS
DANGER:
Turn off the power circuit breaker or the power switch
on the junction box before installing this unit . Touching circuitry
inside the ventilation fan while it is energized will result in
death or serious injury .
NOTE:
Ensure your fan is properly connected to the duct work and electrical
supply cable (not powered) before proceeding.
-
To make this housing easier to insert into the ceiling opening,
bend the joist mounting tabs towards the housing as shown
in figure 13. The damper and duct can also be detached from
inside the housing as shown in figure 14.
-
With the motor mounting assembly removed, gently insert the
fan housing into the fan opening in the ceiling . Position it such
that the housing is flush with the ceiling surface.
-
Secure the fan housing to the ceiling joist with screws as
shown in figure 16.
-
If the housing cannot be secured to the joists directly, you
may use the supplied drywall clips (G) to secure the fan
housing to the drywall directly as shown in figure 15.
-
Ensure the housing is fastened securely, then reinstall the
motor mounting assembly . Plug the motor into the receptacle .
See figure 16.
If your ducting is other than 4” in
diameter, a duct adapter is required (not
supplied) to make an air tight connection .
Existing house
ducting
Duct adapter
Aluminum
foil tape
Duct adapter
(optional)
H
Clip (G)
Drywall
Fan Housing
Ceiling
drywall
Ceiling
opening
Screw holes
Joist
2
1
3
Fan
housing
Motor mounting
assembly
Motor receptacle
Fig . 12
Fig . 13
Fig . 14
Fig . 15
Fig . 16
