Keystone Slider/Casement Window Air Conditioner Owners Guide - Remote Controller - Manual (Page 14)

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SHORTCUT function(some models)
SLEEP function
SHORT CUT
SLEEP
Used to restore the current settings or
resume previous settings.(For some models)
Push this button when remote controller is
on, the system will automatically revert back
to the previous settings including operating
mode, setting temperature, fan speed level
and sleep feature(if activated).
If pushing more than 2 seconds, the system
will automatically restore the current
operation settings including operating mode,
setting temperature, fan speed level and
sleep feature (if activated ).
The SLEEP function is used to decrease
energy use while you sleep (and don t need
the same temperature settings to stay
comfortable). This function can only be
activated via remote control.
The sleep function is not available in Fan or
Dry mode.Please refer to the OWNER’S
MANUAL for more details.