TYPICAL INSTALLATIONS
Housing mounted to
I-joists.
Housing mounted to joists.
Housing mounted anywhere be-
tween trusses using hanger bars.
PLAN THE INSTALLATION
1. Choose the
installation
location.
The location of
POWER
your humidity
CABLE*
sensing fan is
very important.
Seal gaps
Use the follow-
around
Housing.
ing guidelines
for best opera-
tion:
*Purchase
separately.
Housing mounted anywhere between
I-joists using hanger bars.
Housing mounted anywhere between
joists using hanger bars.
Housing mounted anywhere be-
tween trusses using hanger bars.
INSULATION*
(Place around and
over Fan Housing.)
FAN
HOUSING
OR
4-IN. ROUND
DUCT*
Seal duct
joints with
4-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.
• Use a roof cap or wall cap that has a built-in damper
to reduce backdrafts.
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.
INSTALL HOUSING &
DUCT
1a. Mount
housing
to joist
or I-joist.
Use a pliers to
bend housing
TABS out to
90
. Hold hous-
0
ing in place so
that the hous-
ing tabs con-
tact the bottom
o f t h e j o i s t .
The housing
ROOF CAP*
mounts with
(with built-in
damper)
four (4) screws
or nails. Screw
or nail housing
Keep duct
runs short.
to joist through
lowest holes in
each mount-
i n g f l a n g e ,
then through
highest holes.
WALL CAP*
NOTE: Mounting to I-JOIST (shown) requires use of
(with built-in
SPACERS (included) between the highest hole of each
damper)
mounting flange and the I-joist.
MODEL QTRE100S
Page 2
TABS
SPACER
(use for mounting to I-Joist)
I-JOIST
OR