Use and Care Manual

Page 13
Operating Instructions
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Special Features & Functions (continued):
Refrigerant Leakage Detection System:
If a refrigerant leak should occur, the LED display will show a refrigerant leak error code and the LED indicator
light will flash.
Louver Angle Memory Functions (optional):
Some models are equipped with a louver angle memory function. When the unit restarts after a power failure,
the angle of the horizontal louvers will automatically to their previous position. NOTE: To reset the louver,
press the manual button, which will reset the louver settings.
Three-Minute Protection Feature:
This is a protection feature that will prevent the air conditioner from being activated for approximately 3
minutes when it is restarted immediately after being turned off. This is to prevent the compressor from being
damaged during a quick restart.
Auto-Restart:
In the event of a power interruption, such as a blackout, the unit will immediately stop. When power is
restored, the operation light on the cassette will begin to flash. 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 settings before the
outage occurred.
• If the unit is not equipped with an auto-restart function, the system will revert back to the
factory default settings (AUTO mode, AUTO fan, and a temperature setting of 76°F (24°C)). This
may cause inconsistencies on the remote control and unit display panel. Use the remote control
to update the settings.
Active Clean Function:
This function actively washes away dust and dirt that can collect on the heat exchanger within the cassette. It
functions by operating to create more condensate (water) on the heat exchanger. Then it will automatically
freeze the condensate on the heat exchanger and rapidly thaw the frost to wash away the debris that has
collected. The fan will operate to blow out the cold air created. Once the dust and dirt have been washed
away, the fan will continue to spin to blow dry the evaporator with hot air. When this function is activated, the
letters CL will appear in the display panel. The process will take anywhere from 20 to 130 minutes to
complete. Once it is complete, the unit will automatically shut off and cancel the Active Clean function.
NOTE: During this operation a pinging sound may be heard coming from the unit.
Wireless Smart Control Function (optional):
Connect the wireless control module via the USB port inside the left access panel of the cassette. Please refer
to the Indoor Unit Installation section of this manual for more detailed instructions. This will allow the unit
to be controlled by the remote control and/or the smartphone app.
CAUTION
DO NOT set the angle of the horizontal louver too narrow, as this could cause condensation
to form and drip into the unit.
CAUTION
DO NOT stand near the air outlet of the unit while the Active Clean function is occurring. For
some units, the air outlet temperature will be very high.