TYPICAL INSTALLATIONS
Housing mounted to
I-joists.
Housing mounted to joists.
Housing mounted anywhere
between trusses using
hanger bars.
PLAN THE INSTALLATION
1. Choose the
installation
location.
The location of
POWER
CABLE*
your humidity
sensing
Seal gaps
fan is very
around
important. Use
Housing.
6-IN. ROUND
the following
guidelines for
*Purchase
best operation:
separately.
Housing mounted anywhere
between I-joists using
hanger bars.
Housing mounted
anywhere between
joists using hanger bars.
Housing mounted anywhere
between trusses using hanger
bars.
INSULATION*
(Place around and
over Fan Housing.)
FAN
HOUSING
OR
DUCT*
Seal duct
joints with
6-IN.
tape.
ROUND
ELBOWS*
• Locate unit above (GFCI protected circuit required) or
within 5 feet of shower head.
• Locate unit away from heating or cooling sources
which can affect humidity levels.
• Do not locate near window. Unit may respond to the
outdoor humidity level.
• Unit must be installed in ceiling to properly sense
moisture.
• Locate unit only on flat ceilings up to 12 feet high for
proper sensing.
• The ducting from this fan to the outside of the building
has a strong effect on the air flow, noise and energy
use of the fan. Use the shortest, straightest duct rout-
ing possible for best performance, and avoid installing
the fan with smaller ducts than recommended. Insula-
tion around the ducts can reduce energy loss and
inhibit mold growth. Fans installed with existing ducts
may not achieve their rated airflow.
2. Plan the wiring.
• Plan to supply the unit with proper line voltage and
appropriate power cable. Power cable should be
routed to the switch box first and then to the unit
(See "CONNECT WIRING" on page 3).
• Do not operate this unit with a speed control.
Damage to the sensor unit will result.
• Light or night-light may be installed with a wall-
mounted motion control.
INSTALL HOUSING & DUCT
1a. Mount
housing
to joist or
I-joist.
Use a pliers to
bend housing
TABS out
to 90
. Hold
0
housing in
place so that
the housing
tabs contact
the bottom
of the joist.
The housing
mounts with
ROOF CAP*
(with built-in
four (4) screws
damper)
or nails. Screw
or nail housing
Keep duct
to joist through
runs short.
lowest holes in
each mounting
flange, then
through highest holes. NOTE: Mounting to I-JOIST
(shown) requires use of SPACERS (included)
WALL CAP*
between the highest hole of each mounting flange
(with built-in
and the I-joist.
damper)
MODEL QTXEN110HFLT
Page 2
TABS
SPACER
(use for mounting to I-Joist)
I-JOIST
OR