666 Using the System6.8.9.2 Registering passwords2 Click the Not registered button to display a keyboard window for registering passwords.You can register 3 kinds of passwords: “Setting”, “Distrib.”, and “Operation”.Refer to “Menu list” under “5. Quick reference” for details.Enter a 4-digit number from 0000 to 9999, and touch the Set button. The caption on theNot registered button changes to Registered .To delete a password, first enter the four-digit password, then touch the Set button.Clear the password by pressing the Registered button and entering the password. The buttonchanges back to Not registered . When changing a password, delete the old password beforesetting the new one.6.8.9.3 Selecting no-communications mode3 Use the options buttons to select whether or not to use no-communications mode.If you select YES (no-communications mode) then communications errors will be suppressed,but it will not be possible to communicate with air conditioning units. Data displayed by thesystem will be meaningless.This setting is provided for occasions when you want to register names or check the displaylayout even though air conditioners are not installed, not turned on, or otherwise not capable ofcommunications.Normally you should leave the NO (Normal) button selected, selectingYES (no-communications mode) only when it is necessary.6.8.9.4 Buzzer sounds4 When pressing an effective button during setting at Sound , the buzzer will sound (buzz).When setting at No sound , even the alarm buzzer does not sound.6.8.9.5 Initialization5 Initialization erases all system data, including setting data and totals data.A window like the following appears when you touch the Initialization button.Touch the Yes button to erase all data and return the system to the factory default state.* Everyday, at 23:30 to 00:00, cut-off processing takes place and you cannot press the Initializationbutton then.!! Do not make imprudent initialization.Main Sub66 99