Install the Extension Duct
1. Temporarily secure plenum to left and right support
brackets that were previously installed.
2. Measure and cut a 3 3/4 in. X 7 1/8 in. hole through adja-
cent wall(fig.2)
3. Install wall trim adapter. Double-sided tape works well.
4. Now measure from mounting hole in support bracket to
wall suface of adjacent room.
5. From ftanged end of the extension duct measure to the
length from above.
6. Cut the extension duct. Note: Final length of duct may be
flush with the wall or up to 1/2 inch short.
7. Trim insulation 1 1/2 in. for the installation of wall register
as illustrated.
8. Mount extension duct by sliding it into installed wall trim
adapter, secure ftanged with provided scews.
Install Plenum to Unit
1. Using provided screws, install end cap on plenum.
2. Line up the plenum to the extension duct and support
bracket secure with provided screws.
Filter Cleaning
1. To clean unit filters remove the transition duct
2. To remove transition duct remove two screws from the
end of duct.
FLANGE END
1/8”
1/8”
TOP
X
Y
3 3/4” X 7 1/8”
CUTOUT OPENING
WALL
Removable
Transition Duct
Filter
Plenum assembly
Screws
PTAC
6RWU0-0
5
B
Mechanical accessories
Accessories 78
