Specifications

84
Table 15 — ICVC Primary and Secondary Messages and
Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
G. NORMAL RUN WITH OVERRIDES
STATE
PRIMARY
MESSAGE
SECONDARY
MESSAGE
ALARM MESSAGE
PRIMARY CAUSE
ADDITIONAL
CAUSE/REMEDY
120
RUN CAPACITY
LIMITED
HIGH CONDENSER
PRESSURE
120->Condenser Pressure [VALUE]
exceeded limit of [LIMIT]*.
Check for high condenser liquid temperatures.
Check COND PRESS OVERRIDE setting
in SETUP1.
121
RUN CAPACITY
LIMITED
HIGH MOTOR
TEMPERATURE
121->Comp Motor Winding Temp
[VALUE] exceeded limit of [LIMIT]*.
Check motor cooling lines.
Check for closed valves.
Check COMP MOTOR TEMP OVERRIDE setting
in SETUP1.
122
RUN CAPACITY
LIMITED
LOW EVAP REFRIG
TEMP
122->Evaporator Refrig Temp [VALUE]
exceeded limit of [LIMIT]*.
Check REFRIG OVERRIDE DELTA T
setting in SETUP1 screen.
Check refrigerant charge.
Check for low entering cooler temperatures.
123
RUN CAPACITY
LIMITED
HIGH RECTIFIER TEMP
123->Rectifier Temperature [VALUE]
exceeded limit of [LIMIT]*
Check VFD refrigerant isolation valves.
Check VFD refrigerant cooling solenoid valve.
Check RECTIFIER TEMP OVERRIDE in
SETUP1 screen.
124
RUN CAPACITY
LIMITED
MANUAL SPEED
CONTROL
TARGET VFD SPEED in COMPRESS screen is
forced to a fixed value.
125
RUN CAPACITY
LIMITED
HIGH INVERTER TEMP
125->Inverter Temperature [VALUE]
exceeded limit of [LIMIT]*
Check VFD refrigerant isolation valves.
Check VFD refrigerant cooling solenoid valve.
Check INVERTER TEMP OVERRIDE in
SETUP1 screen.
126
RUN CAPACITY
OVERRIDE
COMP MIN SPEED IN
EFFECT
TARGET VFD SPEED is clamped to COMP
MINIMUM SPEED due to oil viscosity.
127
RUN CAPACITY
OVERRIDE
COMP MAX SPEED
LIMITED
TARGET VFD SPEED is clamped to VFD
MAXIMUM SPEED.
Check VFD MAXIMUM SPEED in SETUP2 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 has recorded at the time of the fault condition.
H. OUT-OF-RANGE SENSOR ALARMS
STATE
PRIMARY
MESSAGE
SECONDARY
MESSAGE
ALARM MESSAGE
PRIMARY CAUSE
ADDITIONAL
CAUSE/REMEDY
260 SENSOR FAULT
LEAVING CHILLED
LIQUID
260->Sensor Fault: Check Leaving
Chilled Liquid Sensor
Check sensor resistance or voltage drop against
Table 17A or 17B.
Check for proper wiring between Leaving Chilled
Liquid Temperature sensor and CCM.
Check for grounded sensor lead.
See Table 5.
261 SENSOR FAULT
ENTERING CHILLED
LIQUID
261->Sensor Fault: Check Entering
Chilled Liquid Sensor
Check sensor resistance or voltage drop against
Table 17A or 17B.
Check for proper wiring between Entering Chilled
Liquid Sensor and CCM.
Check for grounded sensor lead.
See Table 5.
262 SENSOR FAULT
CONDENSER
PRESSURE
262->Sensor Fault: Check
Condenser Pressure Sensor
Confirm that 5V Reference voltage is available
on CCM.
Check sensor voltage drop.
Check for proper wiring between Condenser
Pressure Sensor and CCM.
Check for grounded sensor lead.
Check for condensation inside of pressure
sensor connector.
See Table 5.
263 SENSOR FAULT
EVAPORATOR
PRESSURE
263->Sensor Fault: Check
Evaporator Pressure Sensor
Confirm that 5V Reference voltage is available
on CCM.
Check sensor voltage drop.
Check for proper wiring between Evaporator
Pressure Sensor and CCM.
Check for grounded sensor lead.
Check for condensation inside of pressure sensor
connector.
See Table 5.
264 SENSOR FAULT
OIL PRESS SENSOR
FAULT
264->Sensor Fault: Check Oil
Pressure Delta P Sensor
Confirm that 5V Reference voltage is available
on CCM.
Check sensor voltage drops.
Check for proper wiring between Oil Sump
Pressure and Oil Pressure Leaving Filter Sensors
and CCM.
Check for grounded sensor lead.
Check for condensation inside of pressure sensor
connectors.
See Table 5.