Filter
Top Products
11
Table 4 — ICVC Alert Codes
PRE-START ALERTS: These alerts only delay start-up. When alert is corrected, the start-up will continue. No reset is
necessary.
*[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.
ICVC FAULT
STATE
PRIMARY
MESSAGE
SECONDARY
MESSAGE
PRIMARY CAUSE ADDITIONAL CAUSE/REMEDY
100 PRESTART
ALERT
STARTS LIMIT
EXCEEDED
100Excessive compressor starts
(8 in 12 hours).
Depress the RESET softkey if additional start
is required. Reassess start-up requirements.
101 PRESTART
ALERT
HIGH BEARING
TEMPERATURE
101Comp Thrust Brg Temp [VALUE]
exceeded limit of [LIMIT]*.
Check oil heater for proper operation.
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
ALERT
HIGH MOTOR
TEMPERATURE
102Comp Motor Winding Temp
[VALUE] exceeded limit of [LIMIT]*.
Check motor sensors for wiring and accuracy.
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
ALERT
HIGH
DISCHARGE
TEMP
103Comp Discharge Temp [VALUE]
exceeded limit of [LIMIT]*.
Allow discharge sensor to cool.
Check sensor wiring and accuracy.
Check for excessive starts.
Check Comp Discharge Alert setting in
SETUP1 screen.
104 PRESTART
ALERT
LOW
REFRIGERANT
TEMP
104Evaporator Refrig Temp [VALUE]
exceeded limit of [LIMIT]*.
Check transducer wiring and accuracy.
Check for low chilled fluid supply
temperatures.
Check refrigerant charge.
Check Refrig Override Delta T in SETUP1
screen.
105 PRESTART
ALERT
LOW OIL
TEMPERATURE
105Oil Sump Temp [VALUE]
exceeded limit of [LIMIT]*.
Check oil heater contactor/relay and power.
Check oil level and oil pump operation.
106 PRESTART
ALERT
HIGH
CONDENSER
PRESSURE
106Condenser Pressure [VALUE]
exceeded limit of [LIMIT]*.
Check transducer wiring and accuracy.
Check for high condenser water
temperatures.
Check high condenser pressure switch wiring.
107 PRESTART
ALERT
LOW LINE
VOLTAGE
107Percent Line Voltage [VALUE]
exceeded limit of [LIMIT]*.
Check voltage supply.
Check voltage transformers and switch gear.
Consult power utility if voltage is low.
108 PRESTART
ALERT
HIGH LINE
VOLTAGE
108Percent Line Voltage [VALUE]
exceeded limit of [LIMIT]*.
Check voltage supply.
Check power transformers.
Consult power utility if voltage is high.
109 PRESTART
ALERT
GUIDE VANE
CALIBRATION
109Actual Guide Vane Pos
Calibration Required Before Startup.
Press STOP button on ICVC and perform
Guide Vane Calibration in Controls Test
screen.
Check guide vane actuator feedback
potentiometer.
110 PRESTART
ALERT
HIGH
RECTIFIER
TEMP
110Rectifier Temperature [VALUE]
exceeded limit of [LIMIT]*.
Check that VFD refrigerant isolation valves
are open.
Check VFD refrigerant cooling solenoid and
refrigerant strainer.
Check for proper VFD cooling fan operation
and blockage.
111 PRESTART
ALERT
HIGH
INVERTER
TEMP
111Inverter Temperature [VALUE]
exceeded limit of [LIMIT]*.
Check that VFD refrigerant isolation valves
are open.
Check VFD refrigerant cooling solenoid and
refrigerant strainer.
Check for proper VFD cooling fan operation
and blockage.