Specifications

59
Software Configuration
As the 23XRV unit is configured, all configuration settings
should be written down. A log, such as the one shown on pages
CL-1 to CL-12, provides a convenient list for configuration
values.
It is recommended that all control configuration tables be
uploaded via service tool and stored for reference when the
software configuration is complete.
Input the Design Set Points — Access the ICVC
SET POINT screen and view/modify the BASE DEMAND
LIMIT set point, and either the LCL SET POINT or the ECL
SET POINT. The PIC III can control a set point to either the
leaving or entering chilled liquid. This control method is set in
the EQUIPMENT SERVICE (TEMP_CTL) table. The default
setting of ECL CONTROL OPTION is DSABLE so the
PIC III will control the leaving chilled liquid temperature.
Input the Local Occupancy Schedule
(OCCPC01S) —
Access the schedule OCCPC01S screen
on the ICVC and set up the occupied time schedule according
to the customer’s requirements. If no schedule is available, the
default is factory set for 24 hours occupied, 7 days per week
including holidays.
For more information about how to set up a time schedule,
see the Time Schedule Operation section, page 21.
The CCN Occupied Schedule (OCCPC03S) should be con-
figured if a CCN system is being installed or if a secondary
time schedule is needed.
NOTE: The default CCN Occupied Schedule OCCPC03S is
configured to be unoccupied.
Input Service Configurations — The following con-
figurations require the ICVC screen to be in the SERVICE
portion of the menu.
• CONTROL TEST
• EQUIPMENT CONFIGURATION
•VFD CONFIG DATA
• EQUIPMENT SERVICE
• TIME AND DATE
• ICVC CONFIGURATION (PASSWORD)
PASSWORD — When accessing the SERVICE tables, a pass-
word must be entered. All ICVC are initially set for a password
of 1-1-1-1.
INPUT TIME AND DATE — Access the TIME AND DATE
table on the SERVICE menu. Input the present time of day,
date, and day of the week. The HOLIDAY parameter should
only be configured to YES if the present day is a holiday.
NOTE: Because a schedule is integral to the chiller control
sequence, the chiller will not start until the time and date have
been set.
CHANGE ICVC CONFIGURATION IF NECESSARY —
From the SERVICE table, access the ICVC CONFIGURA-
TION screen. From there, view or modify the ICVC CCN
address, change to US Imperial (English) or Metric (SI) units,
LID Language, and change the password. If there is more than
one chiller at the jobsite, change the ICVC CCN address on
each chiller so that each chiller has its own address. Note and
record the new address. Change the screen to Metric (SI) units
as required, and change the ICVC password if desired.
TO CHANGE THE PASSWORD — The password may be
changed from the ICVC CONFIGURATION screen.
1. Press the and softkeys. Enter the
current password and highlight ICVC CONFIGURA-
TION. Press the softkey. Only the last 6
entries on the ICVC CONFIG screen can be changed:
BUS #, ADDRESS #, BAUD RATE, US IMP/METRIC,
PA S S W O R D , and LID LANGUAGE.
2. Use the softkey to scroll to PA S S W O R D . The
first digit of the password is highlighted on the screen.
3. To change the digit, press the or
softkey. When the desired digit is seen,
press the softkey.
4. The next digit is highlighted. Change it, and the third
and fourth digits in the same way the first was
changed.
5. After the last password digit is changed, the ICVC
goes to the LID LANGUAGE parameter. Press the
softkey to leave that screen and return to the
SERVICE menu.
TO CHANGE THE ICVC DISPLAY FROM ENGLISH TO
METRIC UNITS — By default, the ICVC displays informa-
tion in English units. To change to metric units, access the
ICVC CONFIGURATION screen:
1. Press the and softkeys. Enter the
password and highlight ICVC CONFIGURATION.
Press the softkey.
2. Use the softkey to scroll to US imp or
METRIC.
3. Press the softkey that corresponds to the units desired for
display on the ICVC (e.g., US imp or METRIC).
MODIFY CONTROLLER IDENTIFICATION IF NECES-
SARY — The ICVC module address can be changed from the
ICVC CONFIGURATION screen. Change this address for
each chiller if there is more than one chiller at the jobsite. Write
the new address on the ICVC module for future reference.
INPUT EQUIPMENT SERVICE PARAMETERS IF NEC-
ESSARY — The EQUIPMENT SERVICE table has six
service tables:
1. OPTIONS
2. SETUP1
3. SETUP2
4. LEADLAG
5. RAMP_DEM
6. TEMP_CTL
Check VFD_CONFIG TABLE
— Enter the VFD_CONF
screen on the ICVC by entering the following screen
sequence:
•MENU
•SERVICE
• Password (default 1111)
• VFD CONFIG DATA
• Password (default 4444)
•VFD_CONF
WARNING
Do not operate the chiller before the control configurations
have been checked in the ICVC and a Control Test has
been satisfactorily completed. Protection by safety controls
cannot be assumed until all control configurations have
been confirmed.
CAUTION
Be sure to remember the password. Retain a copy
for future reference. Without the password, access to the
SERVICE menu will not be possible unless the
ICVC_PWD menu on the STATUS screen is accessed by a
Carrier representative.
MENU
SERVICE
SELECT
ENTER
INCREASE
DECREASE
ENTER
EXIT
MENU
SERVICE
SELECT
ENTER