Carrier 19XR,XRV Hermetic Centrifugal Liquid Chillers - Manual (Page 45)

45
Service Operation — An overview of the tables and
screens available for the SERVICE function is shown in
Fig. 18.
TO ACCESS THE SERVICE SCREENS — When the SER-
VICE screens are accessed, a password must be entered.
1. From the main MENU screen, press the
softkey. The softkeys now correspond to the numerals
1, 2, 3, 4.
2. Press the four digits of the password, one at a time. An
asterisk (*) appears as each digit is entered
NOTE: The initial factory-set password is 1-1-1-1. If the
password is incorrect, an error message is displayed
If this occurs, return to Step 1 and try to access the SER-
VICE screens again. If the password is correct, the soft-
key labels change to:
NOTE: The SERVICE screen password can be changed
by entering the CVC/ICVC CONFIGURATION screen
under SERVICE menu. The password is located at the
bottom of the menu.
The CVC/ICVC screen displays the following list of
available SERVICE screens:
• Alarm History
• Control Test
• Control Algorithm Status
• Equipment Configuration
• ISM (Starter) Config Data
• Equipment Service
• Time and Date
• Attach to Network Device
• Log Out of Device
• CVC/ICVC Configuration
See Fig. 18 for additional screens and tables available from
the SERVICE screens listed above. Use the softkey to
return to the main MENU screen.
NOTE: To prevent unauthorized persons from accessing the
CVC/ICVC service screens, the CVC/ICVC automatically
signs off and password-protects itself if a key has not been
pressed for 15 minutes. The sequence is as follows. Fifteen
minutes after the last key is pressed, the default screen dis-
plays, the CVC/ICVC screen light goes out (analogous to a
screen saver), and the CVC/ICVC logs out of the password-
protected SERVICE menu. Other screen and menus, such as
the STATUS screen can be accessed without the password by
pressing the appropriate softkey.
TO LOG OUT OF NETWORK DEVICE — To access this
screen and log out of a network device, from the default CVC/
ICVC screen, press the
and softkeys.
Enter the password and, from the SERVICE menu, highlight
LOG OUT OF NETWORK DEVICE and press the
softkey. The CVC/ICVC default screen will now be displayed.
HOLIDAY SCHEDULING (Fig. 25) — The time schedules
may be configured for special operation during a holiday peri-
od. When modifying a time period, the “H” at the end of the
days of the week field signifies that the period is applicable to a
holiday. (See Fig. 19.)
The broadcast function must be activated for the holidays
configured on the HOLIDEF screen to work properly. Access
the BRODEF screen from the EQUIPMENT CONFIGURA-
TION table and select ENABLE to activate function. Note that
when the chiller is connected to a CCN Network, only one
chiller or CCN device can be configured as the broadcast de-
vice. The controller that is configured as the broadcaster is the
device responsible for transmitting holiday, time, and daylight-
savings dates throughout the network.
To access the BRODEF screen, see the SERVICE menu
structure, Fig. 18.
To view or change the holiday periods for up to 18 different
holidays, perform the following operation:
1. At the Menu screen, press to access the Ser-
vice menu.
2. If not logged on, follow the instructions for Attach to Net-
work Device or To Log Out. Once logged on, press
until Equipment Configuration is highlighted.
3. Once Equipment Configuration is highlighted, press
to access.
4. Press until HOLIDAYS is highlighted. This is
the Holiday Definition table.
5. Press to enter the Data Table Select screen.
This screen lists 18 holiday tables.
6. Press to highlight the holiday table that is to be
viewed or changed. Each table is one holiday period,
starting on a specific date, and lasting up to 99 days.
7. Press to access the holiday table. The Config-
uration Select table now shows the holiday start month
and day, and how many days the holiday period will last.
8. Press or to highlight the month,
day, or duration.
9. Press to modify the month, day, or duration.
10. Press or to change the
selected value.
11. Press to save the changes.
12. Press to return to the previous menu.
SERVICE
EXIT
MENU SERVICE
SELECT
SERVICE
NEXT
SELECT
NEXT
SELECT
NEXT
SELECT
NEXT PREVIOUS
SELECT
INCREASE DECREASE
ENTER
EXIT
Fig. 25 — Example of Holiday Period Screen