0: No auxiliary heating temperature lockout
40,45,50,55,60℉: heat pump auxiliary heating temperature lockout. ( See menu item 22 explains how it work)
23. Select audible beeper On/off
Select YES, thermostat will beep when any button touched
Select NO, thermostat will turn off the voice
24. Select keypad lockout on or off
UnL-unlock. All keys are available. Screen is unlocked
PAL-partially locked. All key functions are locked except SYSTEM key; temperature UP and DOWN keys and the
CANCEL key. Enter Configuration setup to unlock the screen
FUL-fully locked. Screen is fully locked except SYSTEM key. Enter Configuration setup to unlock the screen
25. O: Said in heating mode, O/B relay will be output, Heating is effective.
B: Said in Cooling mode, O/B relay will be output, Cooling is effective.
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