Carrier 17EX - Manual (Page 89)

Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides (cont)
I. NORMAL RUN WITH RESET, TEMPERATURE, OR DEMAND
PRIMARY MESSAGE SECONDARY MESSAGE PROBABLE CAUSE/REMEDY
RUNNING — RESET ACTIVE 4-20MA SIGNAL
Reset program active based on CONFIG screen setup. RUNNING — RESET ACTIVE REMOTE SENSOR CONTROL
RUNNING — RESET ACTIVE CHW TEMP DIFFERENCE
RUNNING — TEMP CONTROL LEAVING CHILLED WATER Default method of temperature control.
RUNNING — TEMP CONTROL ENTERING CHILLED WATER ECW control activated on CONFIG screen.
RUNNING — TEMP CONTROL TEMPERATURE RAMP LOADING Ramp loading in effect. Use SERVICE1 screen to modify.
RUNNING — DEMAND LIMITED BY DEMAND RAMP LOADING Ramp loading in effect. Use SERVICE1 screen to modify.
RUNNING — DEMAND LIMITED BY LOCAL DEMAND SETPOINT Demand limit set point is Ͻ actual demand.
RUNNING — DEMAND LIMITED BY 4-20MA SIGNAL
Demand limit is active based on CONFIG screen setup. RUNNING — DEMAND LIMITED BY CCN SIGNAL
RUNNING — DEMAND LIMITED BY LOADSHED/REDLINE
RUNNING — TEMP CONTROL HOT GAS BYPASS
Hot gas bypass option is energized. See surge prevention in the
control section.
RUNNING — DEMAND LIMITED BY LOCAL SIGNAL Active demand limit manually overridden on STATUS01 table.
RUNNING — TEMP CONTROL ICE BUILD MODE Chiller is running under Ice Build temperature control.
J. 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.
K. 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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