FRIGIDAIRE FH30DD50MS - Manual (Page 11)

DUCT TAPE OVER SEAM AND SCREW
Screw
Air Flow
Duct Tape Over
Seam and Screw
DUCT ON-THE-FLOOR
DUCT THROUGH-THE-FLOOR
11
6. Install Ductwork
- Use galvanized or aluminum duct in 6” round or 3 ¼” x
10” size, or a combination of both. PVC duct should be used
if installing under a poured concrete slab. Use the shortest
and straightest duct run possible.
The system will operate most efficiently when the ductwork
does not exceed 60 feet of equivalent duct. The downdraft
will operate properly with ductwork up to 100 equivalent feet
of duct. See page 12 for Calculated Duct Length Table.
INSTALLATION
7. Connect Downdraft to Power
- Plug the downdraft’s power cord into the outlet.
- Make sure the power cord is routed beneath the appliance
and away from heat generated by the cooktop.
8. Install Cooktop
- Align the cooktop with the downdraft and fasten cooktop
in place.
 NOTE
Local building codes must be followed in specifying
approved type and specification of ALL duct used. Always
use an appropriate roof or wall cap with damper.
IMPORTANT
All ductworks must be installed as per local codes.
 NOTE
Accurate alignment of cooktop and downdraft is necessary
to ensure that there is no interference when air vent
is raised and lowered. There should be a gap of 1/8”
between the back of the cooktop and the front of the
downdraft cover.