4
Pre-Installation
TYPICAL INSTALLATION
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 air flow.
Do not install ventilation fan in areas where the duct work will
require configuration as shown.
Ensure duct joints and exterior penetrations are sealed with
caulk or other similar material to create an airtight path,
minimize building heat loss and gain, and reduce the potential for
condensation.
Place/wrap insulation around the duct and/or fan to in order to
minimize possible condensation buildup within the duct, and
building heat loss and gain.
Wall cap
Eave vent
Wall
Eave
Roof
Duct
Fan housing
Duct
Fan housing
Duct
Fan housing
Rook cap
Avoid duct shrink
Too many elbows
Turning angle too sharp
Minimum 18 in.
Fan body
Recommended
Elbow near the body
