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Display screens 12 and 13 provide entry into two service
level menus. These are used to initially configure and
adjust machine controls. Changing items in these menus
will affect operation and may reduce machine reliability;
therefore, it is strongly recommended that these settings
only be changed by or under the direction of trained
personnel. Call your local Trane service company for
assistance.
12. Password Required to Access Field Startup Group
Please Enter Password.
13. Password Required to Access Machine Configuration
Group
Please Enter Password.
SERVICE SETTINGS
FIELD STARTUP Group
The Field Startup Group is Password Protected.
The password is
+ + - - + + Enter
This menu group deals with the Field Commissioning of
the chiller and the fundamental control and protection of
the chiller subsystems. If the field startup password is
entered, the display goes to the menu defined below. If a
key is not pressed every 10 minutes (default time setting) in
this password protected menu, the display returns to the
Chiller Operating Mode display of the Chiller Report, and
the password must be entered again to return to this menu.
1. Field Start-up Group Heading
This heading is always present to indicate the top of the
menu.
2. Keypad/Display Lock Feature Enable
The Keypad and Display lock feature is Enabled or disabled
at this screen. Enabling here allows for its use elsewhere.
When disabled, the choice to lock elsewhere is hidden.
Actual locking takes place within the Basic field service
settings group. Possible values of [d/e] are: Disable; Module
Default, or, Enable.
If Enabled, the service setting menu will contain the
following screens:
If this menu item is currently Unlocked:
Press (Enter) to Lock Display and Keypad
Password will be Required to UnLock
When locked is selected the CLD displays:
**DISPLAY AND KEYPAD ARE LOCKED**
***ENTER PASSWORD TO UNLOCK***
No access is permitted to either the Report screens or the
Setting Screens when locked. With this selection, both the
STOP and AUTO keys do not function.
To UNLOCK, press the PREVIOUS and ENTER keys at the
same time.
When the keypad lock feature is Disabled, the keypad lock
display disappears and the non-password-protected area of
the Service Settings menu and the Keypad/Display are
unlocked.
3. Menu Settings Password Enable
When the feature is Disabled, the Menu Setting Password
display does not appear at the top of each of the Settings
Menus and the Menu Settings cannot be password
protected. When the Menu Setting Password feature is
Enabled, the Menu Settings Password display appears just
below each of the Settings Menu Headers so the settings
can be changed if the proper password is entered.
When enabled here but unlocked in basic service settings
group the setting display will be:
Settings in this menu are: Unlocked
Press (Enter) To Lock
When Locked out, a message appears on the screen to
describe the lockout condition.
Settings in this menu are: Locked
Enter password to UnLock
When locked the password to unlock is
- + - + - +
Possible values of [d/e] are Disable, module Default, or,
Enable.
4. Password Duration Time
Range of Values is 1 to 240 minutes in increments of 1
minute. Module Default is 10 minutes.
Once a password has been successfully entered, the
password entry screens for the newly assigned password-
protected menu will be replaced by a "Press (Enter) to
access" screen. This screen will be the re-entry password
for the duration of the timer. A timer is set to the value of
the password duration setpoint every time a CLD button is
pressed. If the timer expires (no key activity for the length
of the password duration time), the password protection
will be re-enabled on all three menus and the password
will need to be re-entered on each menu individually to
regain access.
37
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