Concealed Ducted Air Handler Installation Manual

Operating temperature
Inverter Split Type
NOTE: Room relative humidity less than 80%. If the air conditioner operates in excess of this gure,
the surface of the air conditioner may attract condensation. Please sets the vertical air ow louver to
its maximum angle (vertically to the oor), and set HIGH fan mode.
When your air conditioner is used outside of the following temperature ranges, certain safety
protection features may activate and cause the unit to disable.
Other features
Default Setting
When the air conditioner restarts after a power
failure, it will default to the factory settings
(AUTO mode, AUTO fan, 76°F). This may cause
inconsistencies on the remote control and unit
panel. Use your remote control to update the status.
Auto-Restart (some models)
In case of power failure, the system will immediately
stop. When power returns, the Operation light on
the indoor unit will ash. To restart the unit, press
the ON/OFF button on the remote control. If the
system has an auto restart function, the unit will
restart using the same settings.
Three-minute protection feature
(some models)
A protection feature prevents the air conditioner
from being activated for approximately 3 minutes
when it restarts immediately after operation.
Refrigerant Leak Detection System
(some models)
In the event of a refrigerant leak, the LCD screen will
display “EC” and the LED indicator light will ash.
Unit
Specications
 Page 7 
Revised 5/14/2020
COOL mode
HEAT mode
DRY mode
Room Temperature 62°F - 90°F 32°F - 86°F 50°F - 90°F
Outdoor
Temperature
5°F - 122°F
(For models
with
low ambient
cooling.)
5°F - 75°F 32°F - 122°F
FOR OUTDOOR UNITS
WITH AUXILIARY
ELECTRIC HEATER
When outside
temperature is below
32°F, we strongly
recommend keeping
the unit plugged in at all
time to ensure smooth
ongoing performance.
To further optimize the performance of your unit, do the following:
• Keep doors and windows closed.
• Limit energy usage by using TIMER ON and TIMER OFF functions.
• Do not block air inlets or outlets.
• Regularly inspect and clean air lters.