Gree Multi21 Series Owner's Manual page 14

OPERATION OF WIRELESS REMOTE CONTROLLER
CLOCK SETTING
Press this button to set clock time." " icon on remote controller will
blink. Within 5 seconds, press" + " and " - " button to set clock time.
With each pressing of " + " and " - " buttons, clock time will increase
or decrease 1 minute. To quickly adjust time setting, press and hold
" + " and " - " button for 2 seconds. Release button when you have
reached the desired time setting. Press "CLOCK" button to confirm
the time, and " " icon will stop blinking.
NOTE: Clock time adopts 24-hour mode. A 12-hour time
format is not available.
SLEEP MODE
The system will automatically adjust room temperature during
your sleep time. This slight change in temperature will not affect
your comfort level due to the natural effects that sleeping has
on the body, but it will save on energy consumption and will
lower your electric bill. The Vireo System has three Sleep Modes
to select from. Press the SLEEP button to select Sleep 1, Sleep 2,
Sleep 3 modes or Cancel. The SLEEP
TRADITIONAL MODE - SLEEP 1
In Traditional Mode the unit will slowly relax the room set temperature by up to 4° F until
Sleep Mode is cancelled.
icon will appear.
Cooling Mode
Clock Setting Display
Sleep Mode Display
Heating Mode