63
Table 10 - Alarm and alert messages (continued)
J. CHILLER ALERTS
ICVC
FAULT
STATE
PRIMARY MESSAGE
SECONDARY MESSAGE
ALARM MESSAGE
PRIMARY CAUSE
ADDITIONAL CAUSE/REMEDY
140
SENSOR ALERT
LEAVING COND WATER TEMP
140->Sensor Fault: Check
Leaving Cond Water Sensor
Check sensor resistance or voltage drop.
Check for proper wiring.
141
SENSOR ALERT
ENTERING COND WATER TEMP 141->Sensor Fault: Check
Entering Cond Water Sensor
Check sensor resistance or voltage drop.
Check for proper wiring.
142
LOW OIL PRESSURE
ALERT
CHECK OIL FILTER
142->Low Oil Pressure Alert.
Check oil filter.
Check for partially or closed shut-off valves.
Check oil filter.
Check oil pump and power supply.
Check oil level.
Check for foaming oil at start-up.
Check transducer wiring and accuracy.
143
AUTORESTART PENDING LINE CURRENT IMBALANCE
143->Line Current
Imbalance: Check VFD Fault
History for Values
Power loss has been detected in any phase.
Chiller automatically restarting.
144
AUTORESTART PENDING LINE VOLTAGE DROP OUT
144->Single Cycle Line
Voltage Dropout
A drop in line voltage has been detected within
2 voltage cycles.
Chiller automatically restarting if Auto Restart is enabled
in OPTIONS screen.
145
AUTORESTART PENDING HIGH LINE VOLTAGE
145>High Percent Line
voltage [VALUE]
Check phase to phase and phase to ground line power.
146
AUTORESTART PENDING LOW LINE VOLTAGE
146->Low Percent Line
voltage [VALUE]
Check phase to phase and phase to ground line power.
147
AUTORESTART PENDING VFD MODULE RESET
147->VFD Module Power-On
Reset When Running
VFD Module has detected a hardware fault due to
electrical noise, power loss or software and has reset.
Chiller automatically restarting.
Check for power loss and sources of electromagnetic
interference.
148
AUTORESTART PENDING POWER LOSS
148->Control Power-Loss
When Running
Check 24 V a.c. control power supply to ICVC.
149
SENSOR ALERT
HIGH DISCHARGE TEMP
149->Comp. Discharge
Temp: [VALUE] Exceeded
Limit of [LIMIT]*
Check sensor resistance or voltage drop.
Check for proper wiring.
Check for proper inlet guide vane and optional dif¬fuser
actuator operation.
Check for proper condenser flow and temperature.
Check for high lift or low load.
Check for fouled tubes or noncondensables in the chiller.
150
SENSOR ALERT
HIGH BEARING TEMPERATURE 150->Comp Thrust Brg
Temp: [VALUE] Exceeded
Limit of [LIMIT]*
Check sensor resistance or voltage drop.
Check for proper wiring.
Check for partially closed service valves.
Check oil cooler TXV.
Check oil level and oil temperature.
151
CONDENSER PRESSURE
ALERT
PUMP RELAY ENERGISED
151->High Condenser
Pressure [VALUE]: Pump
Energised to Reduce
Pressure.
Check sensor wiring and accuracy.
Check condenser flow and water temperature.
Check for fouled tubes.
This alarm is not caused by the High Pressure Switch.
152
RECYCLE ALERT
EXCESSIVE RECYCLE STARTS 152->Excessive recycle
starts.
Chiller load is too low to keep compressor on line and
there has been more than 5 starts in 4 hours.
Increase chiller load, adjust hot gas bypass, increase
RECYCLE RESTART DELTA T from SETUP1 Screen.
153
no message: ALERT only
no message; ALERT only
153->Lead/Lag Disabled:
Duplicate Chiller Address;
Check Configuration
Illegal chiller address configuration in Lead/Lag screen.
Both chillers require a different address.
154
POTENTIAL FREEZE-UP
COND PRESS/TEMP TOO LOW
154->Condenser freeze up
prevention
The condenser pressure transducer is reading a pressure
that could freeze the condenser tubes.
Check for condenser refrigerant leaks.
Check fluid temperature.
Check sensor wiring and accuracy.
Place the chiller in PUMPDOWN mode if the vessel is
evacuated.
155
OPTION SENSOR FAULT
REMOTE RESET SENSOR
155->Sensor Fault/Option
Disabled: Remote Reset
Sensor
Check sensor resistance or voltage drop.
Check for proper wiring to CCM connector J4.
156
OPTION SENSOR FAULT
AUTO CHILLED WATER RESET 156->Sensor Fault/Option
Disabled: Auto Chilled Liquid
Reset
Check sensor resistance or voltage drop.
Check for proper wiring to CCM connector J5.
157
OPTION SENSOR FAULT
AUTO DEMAND LIMIT INPUT
157->Sensor Fault/Option
Disabled: Auto Demand Limit
Input
Check sensor resistance or voltage drop.
Check for proper wiring to CCM connector J5.
158
SENSOR ALERT
SPARE TEMPERATURE #1
158->Spare Temperature #1
[VALUE] exceeded limit of
[LIMIT].*
Check sensor resistance or voltage drop.
Check for proper wiring to CCM connector J4.
Check Spare Temp #1 Limit in SETUP1 screen.
Check for proper SPARE TEMPERATURE #1 wiring.
159
SENSOR ALERT
SPARE TEMPERATURE #2
159->Spare Temperature #2
[VALUE] exceeded limit of
[LIMIT].*
Check sensor resistance or voltage drop.
Check for proper wiring to CCM connector J4.
Check Spare Temp #2 Limit in SETUP1 screen.
* [LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., setpoint predefined or selected by the operator as an override, alert, or alarm condition.
[VALUE] is the actual pressure, temperature, voltage, etc., at which the control tripped.
