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Sound Pitch setting
Press and hold Open/Close button on the indoor unit for at least 5 seconds.
Whenever pressing “9” on the outdoor part, the sound will change by level,
from silence to a high-pitched sound.
Until the pitch wanted is heard (a total of 8 levels), press “9” and then “*”.
Manual lock mode
Press the OPEN/CLOSE button for more than 5 seconds and press the “1”
button.
Beep sound comes out and the system is set into manual lock.
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