Daikin EWWH955DZXEA2 [8/47] An example of the hmi screens is shown in the following picture
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Daikin EWWH955DZXEA2 [8/47] An example of the hmi screens is shown in the following picture

Daikin EWWD640DZXSA2 [8/47] An example of the hmi screens is shown in the following picture
D-EOMWC01405-18EN
8/47
EWWD_DZ – EWWH_DZ
decrease changeable values when editing. Pushing the wheel acts as an Enter Button and will jump from a link to the next
set of parameters.
3.1 Navigating
When power is applied to the control circuit, the controller screen will be active and display the Home screen, which can
also be accessed by pressing the Menu Button. The navigating wheel is the only navigating device necessary, although
the MENU, ALARM, and BACK buttons can provide shortcuts as explained previously.
An example of the HMI screens is shown in the following picture.
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A bell ringing in the top right corner will indicate an active alarm. If the bell doesn’t move it means that the alarm has been
acknowledged but not cleared because the alarm condition hasn’t been removed. A LED will also indicate where the alarm
is located between the unit or circuits.
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The active item is highlighted in contrast, in this example the item highlighted in Main Menu is a link to another page. By
pressing the push’n’roll, the HMI will jump to a different page. In this case the HMI will jump to the Enter Password page.
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3.2 Passwords
The HMI structure is based on access levels that means that each password will disclose all the settings and parameters
allowed to that password level. Basic informations about the status can be accessed without the need to enter the
password. The user UC handles two level of passwords:
USER
5321
MAINTENANCE
2526
The following information will cover all data and settings accessible with the maintenance password. User
password will disclose a subset of the settings explained in chapter 4.
In the Enter Password screen, the line with the password field will be highlighted to indicate that the field on the right can
be changed. This represents a setpoint for the controller. Pressing the push’n’roll the individual field will be highlighted to
allow an easy introduction of the numeric password. By changing all fields, the 4 digits password will be entered and, if
correct, the additional settings available with that password level will be disclosed.
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The password will time out after 10 minutes and is cancelled if a new password is entered or the control powers down.
Entering an invalid password has the same effect as continuing without a password. It is changeable from 3 to 30 minutes
via the Timer Settings menu in the Extended Menus.
3.3 Editing
The Editing Mode is entered by pressing the navigation wheel while the cursor is pointing to a line containing an editable
field. Once in the edit mode pressing the wheel again causes the editable field to be highlighted. Turning the wheel
clockwise while the editable field is highlighted causes the value to be increased. Turning the wheel counter-clockwise
while the editable field is highlighted causes the value to be decreased. The faster the wheel is turned, the faster the value
is increased or decreased. Pressing the wheel again cause the new value to be saved and the keypad/display to leave the
edit mode and return to the navigation mode.

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