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4.12 Lock Setting
Select lock symbol in menu page and then press “MENU/OK” button to enter
into the lock setting page. Press “∧” or “∨” button to select the item to be locked
and then press “<” or “>” button to lock or unlock. Please refer to the Fig. as
below.
Figure 4-21 Lock setting
Items can be locked: ON/OFF, mode setting, temperature setting, fan speed
setting, key lock. Once locking is finished, the corresponding item cannot be set
through buttons.
If the keys are locked, all keys cannot be operated after returning to the main
page. Please unlock according to the instructions on main page. During unlocking,
press “MENU/OK” button, press “<” button and then press “>” button to unlock
keys.