Page 2
MODELS QTRE080H • QTRE100H
TYPICAL INSTALLATIONS
BH0001A
Housing mounted to
I
-joists.
A
Housing mounted anywhere
between trusses
using hanger bars.
A
PLAN THE INSTALLATION
1. Choose the
installation
location.
The location of your
humidity sensing fan
is very important.
Use the following
guidelines for best
operation:
2A
Housing mounted
anywhere between
I
-joists using hanger bars.
Housing mounted to joists.
Housing mounted
anywhere between
joists using hanger bars.
Housing mounted anywhere
between trusses
using hanger bars.
BH0006A
INSTALL HOUSING & DUCT
1a. Mount
housing
to joist
or
I
-joist.
Use pliers to
bend housing
TABS
out to 90°.
Hold housing
in place so that
the housing
tabs contact the
bottom of the
joist. The housing
mounts with four
screws or nails.
Screw or nail
housing to joist
through lowest
holes in each
mounting flange,
then through
highest holes.
NOTE: Mounting
to
I
-JOIST
(shown) requires use of
SPACERS
(included) between
the highest hole of each mounting flange and the
I
-joist.
OR
ROOF
CAP
*
4-IN. ROUND
ELBOW(S)
*
4-IN.
ROUND
DUCT
*
WALL
CAP
*
*
Purchase
separately
INSULATION
(Can be placed
around and over
fan housing.)
FAN
HOUSING
• 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 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.
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.
BD0001
SPACER
(use for mounting to
I
-Joist)
TABS
I
-Joist
