Table 4 — ICVC Alert Codes (cont)
CHILLER ALERTS
ICVC FAULT | PRIMARY | SECONDARY | PRIMARY CAUSE | ADDITIONAL CAUSE/REMEDY | |
STATE | MESSAGE | MESSAGE | |||
|
| ||||
140 | SENSOR ALERT | LEAVING COND WATER | 140→Sensor Fault: Check | Check sensor resistance or voltage drop. | |
|
| TEMP | Leaving Cond Water Sensor. | Check for proper wiring. | |
141 | SENSOR ALERT | ENTERING COND WATER | 141→Sensor Fault: Check | Check sensor resistance or voltage drop. | |
|
| TEMP | Entering Cond Water Sensor. | Check for proper wiring. | |
142 | LOW OIL | CHECK OIL FILTER | 142→Low Oil Pressure Alert. | Check for partially or closed | |
| PRESSURE ALERT |
| Check Oil Filter. | Check oil filter. | |
|
|
|
| Check oil pump and power supply. | |
|
|
|
| Check oil level. | |
|
|
|
| Check for foaming oil at | |
|
|
|
| Check transducer wiring and accuracy. | |
143 | AUTORESTART | LINE CURRENT | 143→Line Current Imbal- | Power loss has been detected in any phase. | |
| PENDING | IMBALANCE | ance: Check VFD Fault His- | Chiller automatically restarting. | |
|
|
| tory for Values. |
| |
144 | AUTORESTART | LINE VOLTAGE | 144→Single Cycle Line | A drop in line voltage has been detected within | |
| PENDING | DROP OUT | Voltage Dropout. | 2 voltage cycles. | |
|
|
|
| Chiller automatically restarting if Auto Restart is | |
|
|
|
| enabled in OPTIONS screen. | |
145 | AUTORESTART | HIGH LINE VOLTAGE | 145→High Percent Line | Check phase to phase and phase to ground line | |
| PENDING |
| Voltage [VALUE]. | power. | |
146 | AUTORESTART | LOW LINE VOLTAGE | 146→Low Percent Line | Check phase to phase and phase to ground line | |
| PENDING |
| Voltage [VALUE]. | power. | |
147 | AUTORESTART | VFD MODULE RESET | VFD Module has detected a hardware fault due | ||
| PENDING |
| Reset When Running. | to electrical noise, power loss or software and | |
|
|
|
| has reset. Chiller automatically restarting. | |
|
|
|
| Check for power loss and sources of electro- | |
|
|
|
| magnetic interference. | |
148 | AUTORESTART | POWER LOSS | 148→Control | Check 24 vac control power supply to ICVC. | |
| PENDING |
| When Running. |
| |
149 | SENSOR ALERT | HIGH DISCHARGE TEMP | 149→Comp Discharge Temp | Check sensor resistance or voltage drop. | |
|
|
| [VALUE] Exceeded Limit of | Check for proper wiring. | |
|
|
| [LIMIT]*. | Check for proper inlet guide vane and optional | |
|
|
|
| diffuser 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 | 150→Comp Thrust Brg Temp | Check sensor resistance or voltage drop. | |
|
| TEMPERATURE | [VALUE] exceeded limit of | Check for proper wiring. | |
|
|
| [LIMIT]*. | Check for partially closed service valves. | |
|
|
|
| Check oil cooler TXV. | |
|
|
|
| Check oil level and oil temperature. | |
151 | CONDENSER | PUMP RELAY | 151→High Condenser Pres- | Check sensor wiring and accuracy. | |
| PRESSURE ALERT | ENERGIZED | sure [VALUE]: Pump Ener- | Check condenser flow and water temperature. | |
|
|
| gized to Reduce Pressure. | Check for fouled tubes. | |
|
|
|
| This alarm is not caused by the High Pressure | |
|
|
|
| Switch. | |
152 | RECYCLE ALERT | EXCESSIVE RECYCLE | 152→Excessive recycle | Chiller load is too low to keep compressor on | |
|
| STARTS | starts. | 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: | no message; ALERT only | 153→Lead/Lag Disabled- | Illegal chiller address configuration in Lead/Lag | |
| ALERT |
| Config: Duplicate Chiller | screen. Both chillers require a different address. | |
| only |
| Address. |
| |
154 | POTENTIAL | COND PRESS/TEMP | 154→Condenser freeze up | The condenser pressure transducer is reading a | |
|
| TOO LOW | prevention. | 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 | REMOTE RESET | 155→Sensor Fault/Option | Check sensor resistance or voltage drop. | |
| FAULT | SENSOR | Disabled: Remote Reset | Check for proper wiring to CCM connector J4. | |
|
|
| Sensor. |
| |
156 | OPTION SENSOR | AUTO CHILLED WATER | 156→Sensor Fault/Option | Check sensor resistance or voltage drop. | |
| FAULT | RESET | Disabled: Auto Chilled Water | Check for proper wiring to CCM connector J5. | |
|
|
| Reset. |
| |
157 | OPTION SENSOR | AUTO DEMAND LIMIT | 157→Sensor Fault/Option | Check sensor resistance or voltage drop. | |
| FAULT | INPUT | Disabled: Auto Demand Limit | Check for proper wiring to CCM connector J5. | |
|
|
| Input. |
| |
158 | SENSOR ALERT | SPARE TEMPERATURE | 158→Spare Temperature 1 | Check sensor resistance or voltage drop. | |
|
| #1 | [VALUE] exceeded limit of | Check for proper wiring to CCM connector J4. | |
|
|
| [LIMIT]*. | Check Spare Temp #1 Limit in SETUP1 screen. |
*[LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., set point 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.
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