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Operating Instructions
mrcool.com
Special Functions Continued
WIFI Control Function
Connect the wireless control module via the USB port in the back of the front cover of the indoor unit for the
unit to be controlled by remote control and/or smartphone app.
Clean Air Filter Reminder (optional)
After 240 hours of operation, the indoor display window will display and flash “CL” as a reminder to CLEAN the air
filter for more efficient operation. After 15 seconds, the system will revert back to the previous display again.
When the “CL” indicator appears and flashes, please press the LED button on the remote control 4 times or
press the manual control button 3 times to reset the hours.
Replace Air Filter Reminder (optional)
After 2880 hours of operation, the indoor display window will display and flash “nF” as a reminder to REPLACE
the air filter for more efficient operation. After 15 seconds, the system will revert back to the previous display
again. When the “CL” indicator appears and flashes, please press the LED button on the remote control 4 times
or press the manual control button 3 times to reset the hours.
Mute Function (optional)
Press the LED button on the remote to turn off the LED display and silence the buzzer of the indoor unit,
creating a quiet comfortable environment.