Carrier 17 - Page 89

Table 8 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides (cont)
I. NORMAL RUN OVERRIDES ACTIVE (ALERTS)
PRIMARY MESSAGE SECONDARY MESSAGE ALARM MESSAGE/PRIMARY CAUSE ADDITIONAL CAUSE/REMEDY
RUN CAPACITY LIMITED HIGH CONDENSER PRESSURE CRP [VALUE] exceeded limit of [LIMIT]*.
Condenser pressure override.
See Capacity Overrides, Table 4.
Correct operating condition, modify set-
point, or release override.
RUN CAPACITY LIMITED HIGH MOTOR TEMPERATURE MTRW [VALUE] exceeded limit of [LIMIT]*.
Motor temperature override.
RUN CAPACITY LIMITED LOW EVAP REFRIG TEMP ERT [VALUE] exceeded limit of [LIMIT]*. Check
refrigerant charge level.
RUN CAPACITY LIMITED HIGH COMPRESSOR LIFT Surge Prevention Override; lift too high for
compressor.
RUN CAPACITY LIMITED MANUAL GUIDE VANE TARGET GV TRG Run Capacity Limited: Manual guide
vane target.
*[LIMIT] is shown on the LID 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 temperature, pressure, voltage, etc., at which the control tripped.
J. OUT-OF-RANGE SENSOR FAILURES
PRIMARY MESSAGE SECONDARY MESSAGE ALARM MESSAGE/PRIMARY CAUSE ADDITIONAL CAUSE/REMEDY
SENSOR FAULT LEAVING CHW TEMPERATURE Sensor Fault: Check leaving CHW
sensor.
See sensor test procedure and check
sensors for proper operation and
wiring.
SENSOR FAULT ENTERING CHW TEMPERATURE Sensor Fault: Check entering CHW
sensor.
SENSOR FAULT CONDENSER PRESSURE Sensor Fault: Check condenser pressure
transducer.
SENSOR FAULT EVAPORATOR PRESSURE Sensor Fault: Check evaporator pressure
transducer.
SENSOR FAULT BEARING TEMPERATURE Sensor Fault: Check bearing temperature
sensor.
SENSOR FAULT MOTOR WINDING TEMP Sensor Fault: Check motor temperature
sensor.
SENSOR FAULT DISCHARGE TEMPERATURE Sensor Fault: Check discharge temperature
sensor.
SENSOR FAULT OIL SUMP TEMPERATURE Sensor Fault: Check oil sump temperature
sensor.
SENSOR FAULT OIL PRESSURE TRANSDUCER Sensor Fault: Check oil pressure
transducer.
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