20
3. Attach the ComfoFlex ducting to the rear duct wall adapter and seal with UL 181a rated duct tape.
4. To ensure proper alignment of the rear duct wall adapter to the CA 70 unit, the adapter(s) must be located per the template on
page 40.
Outer sheathing
Wall studs
5. Remove the outer male-threaded ring from the adapter(s).
6. Once the drywall has been installed, locate the rear duct wall adapter opening and cut the drywall opening to the inside
diameter of the adapter. Repeat if a second adapter was installed.
7. Slip the outer male-threaded ring over one of your hands with the threads oriented toward your fingers. Insert that hand into
the hole just created in the drywall for the duct adapter and hold the adapter securely by the internal middle dividing wall.
Drywall
Wall duct adapter outer male threaded ring
INSTRUCTIONS FOR SKILLED INSTALLERS
