Table 4 — ICVC Alert Codes
ICVC FAULT | PRIMARY | SECONDARY | PRIMARY CAUSE | ADDITIONAL CAUSE/REMEDY | |
STATE | MESSAGE | MESSAGE | |||
|
| ||||
100 | PRESTART | STARTS LIMIT | 100→Excessive compressor starts | Depress the RESET softkey if additional start | |
| ALERT | EXCEEDED | (8 in 12 hours). | is required. Reassess | |
101 | PRESTART | HIGH BEARING | 101→Comp Thrust Brg Temp [VALUE] | Check oil heater for proper operation. | |
| ALERT | TEMPERATURE | exceeded limit of [LIMIT]*. | Check for low oil level, partially closed oil sup- | |
|
|
|
| ply valves, clogged oil filters. | |
|
|
|
| Check the sensor wiring and accuracy. | |
|
|
|
| Check Comp Thrust Brg Alert setting in | |
|
|
|
| SETUP1 screen. | |
102 | PRESTART | HIGH MOTOR | 102→Comp Motor Winding Temp | Check motor sensors for wiring and accuracy. | |
| ALERT | TEMPERATURE | [VALUE] exceeded limit of [LIMIT]*. | Check motor cooling line for proper operation, | |
|
|
|
| or restrictions. | |
|
|
|
| Check for excessive starts within a short time | |
|
|
|
| span. | |
|
|
|
| Check Comp Motor Temperature Override | |
|
|
|
| setting in SETUP1 screen. | |
103 | PRESTART | HIGH | 103→Comp Discharge Temp [VALUE] | Allow discharge sensor to cool. | |
| ALERT | DISCHARGE | exceeded limit of [LIMIT]*. | Check sensor wiring and accuracy. | |
|
| TEMP |
| Check for excessive starts. | |
|
|
|
| Check Comp Discharge Alert setting in | |
|
|
|
| SETUP1 screen. | |
104 | PRESTART | LOW | 104→Evaporator Refrig Temp [VALUE] | Check transducer wiring and accuracy. | |
| ALERT | REFRIGERANT | exceeded limit of [LIMIT]*. | Check for low chilled fluid supply | |
|
| TEMP |
| temperatures. | |
|
|
|
| Check refrigerant charge. | |
|
|
|
| Check Refrig Override Delta T in SETUP1 | |
|
|
|
| screen. | |
105 | PRESTART | LOW OIL | 105→Oil Sump Temp [VALUE] | Check oil heater contactor/relay and power. | |
| ALERT | TEMPERATURE | exceeded limit of [LIMIT]*. | Check oil level and oil pump operation. | |
106 | PRESTART | HIGH | 106→Condenser Pressure [VALUE] | Check transducer wiring and accuracy. | |
| ALERT | CONDENSER | exceeded limit of [LIMIT]*. | Check for high condenser water | |
|
| PRESSURE |
| temperatures. | |
|
|
|
| Check high condenser pressure switch wiring. | |
107 | PRESTART | LOW LINE | 107→Percent Line Voltage [VALUE] | Check voltage supply. | |
| ALERT | VOLTAGE | exceeded limit of [LIMIT]*. | Check voltage transformers and switch gear. | |
|
|
|
| Consult power utility if voltage is low. | |
108 | PRESTART | HIGH LINE | 108→Percent Line Voltage [VALUE] | Check voltage supply. | |
| ALERT | VOLTAGE | exceeded limit of [LIMIT]*. | Check power transformers. | |
|
|
|
| Consult power utility if voltage is high. | |
109 | PRESTART | GUIDE VANE | 109→Actual Guide Vane Pos | Press STOP button on ICVC and perform | |
| ALERT | CALIBRATION | Calibration Required Before Startup. | Guide Vane Calibration in Controls Test | |
|
|
|
| screen. | |
|
|
|
| Check guide vane actuator feedback | |
|
|
|
| potentiometer. | |
110 | PRESTART | HIGH | 110→Rectifier Temperature [VALUE] | Check that VFD refrigerant isolation valves | |
| ALERT | RECTIFIER | exceeded limit of [LIMIT]*. | are open. | |
|
| TEMP |
| Check VFD refrigerant cooling solenoid and | |
|
|
|
| refrigerant strainer. | |
|
|
|
| Check for proper VFD cooling fan operation | |
|
|
|
| and blockage. | |
111 | PRESTART | HIGH | 111→Inverter Temperature [VALUE] | Check that VFD refrigerant isolation valves | |
| ALERT | INVERTER | exceeded limit of [LIMIT]*. | are open. | |
|
| TEMP |
| Check VFD refrigerant cooling solenoid and | |
|
|
|
| refrigerant strainer. | |
|
|
|
| Check for proper VFD cooling fan operation | |
|
|
|
| and blockage. |
*[LIMIT] is shown on the ICVC as temperature, pressure, voltage, etc., predefined or selected by the operator as an override or an alert. [VALUE] is the actual pressure, temperature, voltage, etc., at which the control tripped.
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