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15-3. SERVICE MENU
Maintenance password is required
1. Select ˝Service˝ from the Main menu, and press the [
*At the main display, the menu button and select ˝Service˝ to make
the maintenance setting.
2. When the Service menu is selected, a window will appear asking for the pass-
word.
To enter the current maintenance password (4 numerical digits), move the cur-
sor to the digit you want to change with the F1 or F2 button.
Set each number (0 through 9) with the F3 or F4 button.
Then, press the [
] button.
Note: The initial maintenance password is ˝9999˝. Change the default pass-
word as necessary to prevent unauthorized access. Have the pass-
word available for those who need it.
If you forget your maintenance password, you can initialize the pass-
word to the default password ˝9999˝ by pressing and holding the F1
button for 10 seconds on the maintenance password setting
screen.
3. If the password matches, the Service menu will appear.
The type of menu that appears depends on the connected indoor
units' type.
Note: Air conditioning units may need to be stopped to make only
at ˝Settings˝. There may be some settings that cannot be
made when the system is centrally controlled.
A screen will appear that indicates the setting has been saved.
Navigating through the screens
• To go back to the Service menu ..............[
• To return to the previous screen ...............[
OCH771
] button.
] button
] button
127
Main
Main menu
Service
Service menu
Enter maintenance password
Select:
Cursor
F1
F2
F3
F4
F1
F2
F3
F4
S
e
v r
c i
e
m
e
n
u
Test run
Input maintenance info.
Settings
Check
Others
M
a
n i
m
e
n
: u
C
u
s r
r o
Service menu
Not available
Please stop the unit.
Return:
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