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Connecting the Duct
● Install a circular duct to outlet and secure it with duct tape or clamps.
● Install the duct to the outlet with a gradient 1°~2° to the outside as shown.
● 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.
● For models RVH50, RVH70, RVH80, RVH90, or RVH110, 4 in (10.16 cm) round
●
is recommended for best performance. For models RVH130 or RVH150,
●
6 in (15.24 cm) round is recommended for best performance.
● Ensure duct joints and exterior penetrations are sealed with caulk or other
●
similar material to create an air-tight path, to minimize building heat loss and
●
gain, and to reduce the potential for condensation.
● Place/wrap insulation around duct and/or FAN in order to minimize possible
●
condensation buildup within the duct, building heat loss and gain.
INSULATION*
(Place around and
over Fan Housing.)
FAN
HOUSING
POWER
CABLE*
Seal gaps
around
housing.
ROUND
DUCT*
*Purchase
separately.
Seal duct
joints with
ROUND
tape.
ELBOWS*
OR
6
ROOF CAP*
(with built-in
damper)
Keep duct
runs short.
WALL CAP*
(with built-in
damper)
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