oPTIoNAl INsTAllATIoN:
ReAR WAll VeNTING
5” round duct may be used on SHORT DUCT runs,
but best results will be obtained using 3
1
⁄
4
” x 10”
or 6”
round ducting .
To convert blower exhaust direction, remove four
nuts behind the filter which hold blower and wire
finger guard .
Rotate blower and reinstall to vent chamber, as
shown above . Retighten nuts, but do not overtighten .
INsTAllING The DuCTWoRk
Use galvanized or aluminum duct in 6
≤
round or
3
1
⁄
4
” x 10" size, or a combination of both .
PVC duct should be used if installing under a poured
concrete slab .
NoTe:
Local building code must be followed in
specifying approved type and schedule of ALL
duct used .
Always use an appropriate roof or wall cap with
damper . Laundry-type wall caps should NEVER
be used .
Install ductwork, making male-female connections
in the direction of airflow as shown . Secure all joints
with sheet metal screws and duct tape to assure an
airtight seal .
Use the shortest and straightest duct run possible .
For satisfactory performance, the duct run should
not exceed 100 feet equivalent length . Refer to the
“DUCTWORK CALCULATIONS” chart for equivalent
lengths . Use this chart to calculate the total
equivalent length of the ductwork .
20
Through Cabinet Toe Space
Between Floor Joist
Downward Venting
Inside Wall to Roof
Direct to Outside
Rear Wall Venting
Duct Tape Over Seam
and Screw
Air Flow
Screw
7
DuCTWoRk INsTAllATIoN
(Note: for planning purposes only.)
Installation Instructions
