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Les langues disponibles
TYPICAL INSTALLATIONS
POWER CABLE
CEILING
JOIST
CEILING
MATERIAL
HOUSING MOUNTED DIRECTLY TO JOIST
2x6 (or larger)
POWER CABLE
2 x 4
CEILING
JOIST or
TRUSS
CEILING
MATERIAL
HOUSING MOUNTED TO 2x4 TRUSS
Requires additional framing for mounting tabs.
POWER CABLE
I
"
"
CEILING
JOIST
MATERIAL
HOUSING MOUNTED TO "I" JOIST
Requires additional framing for mounting tabs.
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 routing possible for
best performance, and avoid installing the
fan with smaller ducts than recommended.
Insulation around the ducts can reduce energy
loss and inhibit mold growth. Fans installed
with existing ducts may not achieve their rated
airflow.
4-inch round rigid metal duct is recommended
for best performance.
MOUNTING TABS
HOUSING
GRILLE
*
ADDITIONAL
MOUNTING
FRAMING
TABS
2 x 4
CEILING
JOIST or
TRUSS
HOUSING
GRILLE
ADDITIONAL
FRAMING
MOUNTING
*
TABS
HOUSING
I
"
"
JOIST
GRILLE
POWER
CABLE*
Seal gaps
Housing.
Requires additional framing for mounting tabs.
*
Additional framing must be a 2x6 (minimum height).
INSULATION*
(Place around and
over Fan Housing.)
FAN
HOUSING
around
4-IN. ROUND
DUCT*
Seal duct
joints with
*Purchase
tape.
separately.
POWER CABLE
MOUNTING
TABS
HOUSING
"
"
I
JOIST
GRILLE
MATERIAL
HOUSING MOUNTED IN
ANY LOCATION BETWEEN JOISTS
4" ROUND
DUCT
HOUSING
SUSPENDED
GRILLE
CEILING MATERIAL
SUSPENDED CEILINGS
Housing hung with wires - 3-point mount.
OR
4-IN.
ROUND
ELBOWS*
MODELS 770 • 784
Page 2
*
ADDITIONAL
FRAMING
"
"
I
CEILING
JOIST
POWER
CABLE
MOUNTING
TAB
ROOF CAP*
(with built-in
damper)
Keep duct
runs short.
WALL CAP*
(with built-in
damper)
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