Daikin Premium Mini D2270 Owner's Manual & Installation Instructions page 31

Installer Setup
Locking/Unlocking the Keypad
To prevent unauthorized use of the thermostat, the
front panel buttons may be disabled. To disable, or
'lock' the keypad, press and hold the MODE button.
While holding the MODE button, press the WARMER
and COOLER buttons together, for two seconds.
The icon will appear on the display, then release the
buttons.
Press all three
buttons in the
order outlined for
keypad lockout
To unlock the keypad, press and hold the MODE
button. While holding the MODE button, press the
WARMER and COOLER buttons together, for two
seconds.
The icon will disappear from the display, then
release the buttons.
MODE
MODE
COOLER
26
WARMER