Installation Guide

4
1BPre-Installation
13B
PLANNING FOR SUCCESSFUL
INSTALLATION
When installing the ventilation fan in a new
construction site, install the main body of the fan and
duct work during the rough‑in construction of the
building. The grill should be installed after the finished
ceiling is in place.
When installing in existing construction, use the
dimensions on page
X12X to determine the required hole
size for the ceiling. Grill edges should overlap the
finished ceiling.
Do not install the ventilation fan in areas where the
duct work will require configuration as shown.
Turning angle too large Duct shrink
Too many elbows Elbow near the body
Body
Minimum 18 in.
Ensure there is proper insulation around the fan to
minimize building heat loss and gain.
The fan will operate most efficiently when located
where the shortest possible duct run and minimum
number of elbows will be needed.
Use a roof cap or wall cap that has a built-in damper to
reduce backdrafts.
14BINSTALLATION OPTIONS
We recommend installing the ventilation fan by securing the main body of the fan against one ceiling joist and using the
header bars as necessary for support of the adjoining joist.
There are multiple installation configurations possible for this ventilation fan. Not all configurations are shown. If your
installation requires a variation other than those shown, consult with a licensed contractor to determine the best
installation for your project. If you are replacing an existing fan, ensure that the new grill will adequately cover the
existing opening.
Roof cap
(with built-in
damper)
Seal gap
around
housing
Caulk termination
to duct
Fan housing
Short piece of flexible
duct helps alignment
and absorbs
sound
Wall cap
(with built-in
damper)
or
NOTE: If installing in existing construction, you must
have access to space above and below the installation
location.