Carrier 19XR,XRV Hermetic Centrifugal Liquid Chillers - Manual (Page 83)

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Table 11 — CVC/ICVC Primary and Secondary Messages and
Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
I. CHILLER PROTECT LIMIT FAULTS (cont)
*[LIMIT] is shown on the CVC/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 tripped.
J. CHILLER ALERTS
STATE
PRIMARY
MESSAGE
SECONDARY
MESSAGE
ALARM MESSAGE
PRIMARY CAUSE
ADDITIONAL
CAUSE/REMEDY
246 PROTECTIVE
LIMIT INVALID DIFFUSER
CONFIG 246->Diffuser Control Invalid
Configuration:
Check SETUP2 Entries. Check diffuser/guide vane schedule.
247 PROTECTIVE
LIMIT DIFFUSER POSITION
FAULT 247->Diffuser Position Fault:
Check Guide Vane and Diffuser
Actuators Check rotating stall transducer wiring and
accuracy.
Check diffuser schedule.
Check for proper operation of diffuser actuator
and inlet guide vane actuator.
Check diffuser coupling.
Check inlet guide vane operation.
Check inlet guide vane calibration.
Check diffuser/inlet guide vane schedule.
Check diffuser mechanical set-up for proper
orientation.
If not using variable diffuser, check that the
option has not been enabled.
248 PROTECTIVE
LIMIT SPARE TEMPERATURE
#1 248->Spare Temperature #1
[VALUE] exceeded limit of
[LIMIT]*.
249 PROTECTIVE
LIMIT SPARE TEMPERATURE
#2 249->Spare Temperature #2
[VALUE] exceeded limit of
[LIMIT]*.
250 PROTECTIVE
LIMIT REFRIGERANT LEAK
SENSOR 250->Refrigerant Leak Sensor
[VALUE] exceeded Limit of
[LIMIT]*. The refrigerant leak detector’s output wired to
J5-5 and J5-6 on the CCM module has
reached the alarm limit.
Check leak detector and for leaks.
251 PROTECTIVE
LIMIT ISM CONFIG
CONFLICT 251->ISM Config Conflict (ISM
Uploaded); Verify to Reset Alarm Confirm valid settings in ISM_CONF screen.
252 PROTECTIVE
LIMIT ISM CONFIG
CONFLICT 252->ISM Config Conflict (ISM
Downloaded); Verify to Reset
Alarm Confirm valid settings in ISM_CONF screen.
253 PROTECTIVE
LIMIT GUIDE VANE
CALIBRATION 253->Guide Vane Fault [VALUE].
Check Calibration. Enter Control Test and execute Guide Vane
Calibration. Check guide vane feedback (ter-
minals J4-9 and J4-10) on the CCM module.
STATE
PRIMARY
MESSAGE
SECONDARY
MESSAGE
ALARM MESSAGE
PRIMARY CAUSE
ADDITIONAL
CAUSE/REMEDY
140 SENSOR ALERT LEAVING COND
WATER TEMP 140->Sensor Fault:
Check Leaving Cond Water
Sensor Check sensor resistance or voltage drop.
Check for proper wiring.
141 SENSOR ALERT ENTERING COND
WATER TEMP 141->Sensor Fault:
Check Entering Cond Water
Sensor Check sensor resistance or voltage drop.
Check for proper wiring.
142 LOW OIL PRESSURE
ALERT CHECK OIL FILTER 142->Low Oil Pressure Alert.
Check Oil Filter. Check for partially or closed shut-off valves.
Check oil filter.
Check oil pump and power supply.
Check oil level.
Check for foaming oil at start-up.
Check transducer wiring and accuracy.
143 AUTORESTART
PENDING LINE PHASE
LOSS 143->Line Phase Loss Power loss has been detected in any phase.
Chiller automatically restarting.
144 AUTORESTART
PENDING LINE VOLTAGE
DROP OUT 144->Single Cycle Line
Voltage Dropout A drop in line voltage has been detected within
2 voltage cycles. Chiller automatically restarting if
Autorestart option is enabled.
145 AUTORESTART
PENDING HIGH LINE
VOLTAGE 145>Line Overvoltage —
Average Line Volt [VALUE] Check line power.
146 AUTORESTART
PENDING LOW LINE
VOLTAGE 146->Line Undervoltage —
Average Line Volt [VALUE] Check line power.
147 AUTORESTART
PENDING STARTER MODULE
RESET 147->Starter Module Power-
On Reset When Running ISM has detected a hardware fault and has reset.
Chiller automatically restarting.
148 AUTORESTART
PENDING POWER LOSS 148->Control Power-Loss
When Running Check control power.