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4
STEP 7 CONNECT DUCTWORK
• Install a section of 6" round duct through the cabinet
floor.
• Connect the plenum to the ductwork with 90° elbow.
Secure the joint with sheet metal screws. Tape to
seal all joints.
• Install 6" round duct to reach the outdoor motor
assembly.
STEP 8 CONNECT VENT WIRES
• Use electrical cable and connectors that conform to
local codes (14 gauge min. is recommended). Use a
length to reach between the vent and the blower/
motor location.
• Attach the wire box removed from the blower
conduit to the end of new wiring.
STEP 5 INSTALL ADAPTER PLATE
• Install the adapter
plate over the
mounting plate on
the plenum with the
flange towards the
outside. Use 4
screws provided.
STEP 6 CUT DUCTWORK HOLES
• Install the vent into the cabinet according to the
installation instructions packed with the vent.
• Place the 90° elbow over the adapter plate.
• Mark the location for a 6-1/2" round hole in the floor
of the cabinet.
NOTE: Check to be sure there is no interference
below the cabinet floor. The mounting plate on the
plenum can be shifted 3-1/2" to the left or right sides.
• Cut the hole through the cabinet and another hole
through the floor below.
Check for
Interference
Below Floor
90°
Elbow
Cut a
6-1/2" Dia.
Hole
• Use wire nuts to secure the wire to the 3” remaining
wires with plug.
• Reinstall wire box with original screws.
Control Box
Tighten
Screw
• DO NOT USE flexible plastic ducting.
• Use the straightest duct run possible.
• For satisfactory performance the duct run should not
exceed 150 ft. Refer to the table of equivalent lengths.
• Install ductwork so the piece of duct nearest the
downdraft unit slots INTO the next piece of the duct.
Secure the joints with self-tapping screws and apply
duct tape around the joints to ensure an airtight seal.
Duct Tape
Over Seam and Screw
Screw
Air
Flow
Install Adapter
Plate
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