Ductwork Installation - GE Profile PP989SNSS Owner's Manual & Installation Instructions

INSTALLING THE DUCTWORK
7
Use galvanized or aluminum duct in 6 round or
3 1 ⁄ x 10 size, or a combination of both.
4
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.
Through Cabinet Toe Space
Downward Venting
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.
Air Flow
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.
Installation Instructions

DUCTWORK INSTALLATION

(Note: For planning purposes only.)
Between Floor Joist
Duct Tape Over Seam
and Screw
Screw
OPTIONAL INSTALLATION:
REAR WALL VENTING
5 round duct may be used on SHORT DUCT runs,
but best results will be obtained using 3
or 6 round ducting.
Inside Wall to Roof
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.
20
⁄ x 10
1
4
Direct to Outside
Rear Wall Venting