Concealed Ducted Air Handler Installation Manual

Indoor Unit
Installation
 Page 20 
Revised 5/14/2020
Step 5: Motor and drain pump maintenance
(the rear ventilated panel is used as an example)
Motor maintenance:
1. Take o the ventilated panel.
2. Take o the blower housing.
3. Take o the motor.
Step 6: Drill wall hole for connective piping
1. Determine the location of the wall hole based
on the location of the outdoor unit.
2. Using a 2.5in core drill, drill a hole in the wall.
Make sure that the hole is drilled at a slight
downward angle, so that the outdoor end
of the hole is lower than the indoor end by
about 0.5in. This will ensure proper water
drainage.
3. Place the protective wall cu in the hole.
This protects the edges of the hole and will
help seal it when you nish the installation
process.
Motor
Blower housing
Ventilated panel
Pump maintainance:
1. Remove four screws from the drain pump.
2. Unplug the pump power supply and water
level switch cable.
3. Detach the pump
Pump
When drilling the wall hole, make sure to
avoid wires, plumbing, and other sensitive
components.
CAUTION
Wall
Indoo
r
Outdoor
≈ 0.5 inch