Specifications

15
ICVC Operation and Menus (Fig. 15-21)
GENERAL
• The ICVC display automatically reverts to the default
screen after 15 minutes if no softkey activity takes place
(Fig. 15).
• If a screen other than the default screen is displayed on the
ICVC, the name of that screen is in the upper right corner
(Fig. 16).
• The ICVC may be set to display either English or SI units.
Use the ICVC CONFIGURATION screen (accessed from
the SERVICE menu) to change the units. See the Service
Operation section, page 45.
• Local Operation — The PIC III can be placed in local
operating mode by pressing the softkey. The
PIC III then accepts commands from the ICVC only and
uses the Local Time Schedule to determine chiller start
and stop times.
• CCN Operation — The PIC III can be placed in the
CCN operating mode by pressing the softkey.
The PIC III then accepts modifications from any CCN
interface or module (with the proper authority), as well
as from the ICVC. The PIC III uses the CCN Time
Schedule to determine start and stop times.
ALARMS AND ALERTS — An alarm shuts down the com-
pressor. An alert does not shut down the compressor, but it
notifies the operator that an unusual condition has occurred. An
alarm (*) or alert (!) is indicated in the STATUS column on the
right side of the MAINSTAT display screen. See Fig. 17.
Alarms are indicated when the control center alarm light (!)
flashes. The primary alarm message is displayed on the default
screen. An additional, secondary message and troubleshooting
information are sent to the ALARM HISTORY screen.
When an alarm is detected, the ICVC default screen will
freeze (stop updating) at the time of alarm. The freeze enables
the operator to view the chiller conditions at the time of alarm.
Additional information is stored in the VFD_HIST screen. The
STATUS tables will show the updated information. Once all
alarms have been cleared (by pressing the softkey),
the default ICVC screen will return to normal operation.
Fig. 14 — Control Panel
A23-1644
CONNECTOR
CN1B
GROUND
WIRE
CONNECTOR
CN1A
OIL PUMP
CONTACTOR
(2C)
OIL HEATER
CONTACTOR
(1C)
CONTROL
TRANSFORMER
CIRCUIT
BREAKERS
CONNECTOR
CN2
CONNECTOR
CN3
LOW VOLTAGE
FIELD WIRING
TERMINAL BLOCK
HIGH
PRESSURE
SWITCH
CABLE
24V
CONTROL
TRANSFORMER
(T1)
HOT GAS
BYPASS
CONTACTOR (3C)
(OPTIONAL)
VAPORIZER
HEATER
CONTACTOR (6C)
HAZARDOUS
VOLTAGE
FIELD WIRING
TERMINAL BLOCK
20V CONTROL
TRANSFORMER
(T2)
LOCAL
CCN
ALERT HISTORY
CONTROL TEST
CONTROL ALGORITHM STATUS
EQUIPMENT CONFIGURATION
VFD CONFIG DATA
EQUIPMENT SERVICE
TIME AND DATE
ATTACH TO NETWORK DEVICE
LOG OUT OF DEVICE
ICVC CONFIGURATION
ALARM HISTORY
23XRPIC3
SERVICE
MANUALLY STOPPED - PRESS
CCN OR LOCAL TO START
11-22-04 00:09
15.2 HOURS
CHL IN CHL OUT EVAP REF
CDL IN CDL OUT COND REF
OIL PRESS OILTEMP % AMPS IN
STATUS SCHEDULE SETPOINT SERVICE
59.3 58.4 62.1
76.1 85.2 84.4
–0.5 130.6 0.0
PRIMARY STATUS
MESSAGE
COMPRESSOR
ON TIME
DATE TIME
SOFT KEYS
MENU
LINE
EACH KEY'S FUNCTION IS
DEFINED BY THE MENU DESCRIPTION
ON MENU LINE ABOVE
ALARM LIGHT
(ILLUMINATED
WHEN POWER ON)
STOP BUTTON
•
HOLD FOR ONE
SECOND TO STOP
•
•
BLINKS CONTINUOUSLY
ON FOR AN ALARM
BLINKS ONCE TO
CONFIRM A STOP
SECONDARY
STATUS
MESSAGE
Fig. 15 — ICVC Default Screen
Fig. 16 — ICVC Service Screen
a23-1600
a23-1601
RESET