Carrier AquaEdge 23XRV Start-Up, Operation And Maintenance Instructions Manual page 110

Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
J. CHILLER ALERTS (cont)
STATE PRIMARY MESSAGE
AUTORESTART
146
PENDING
AUTORESTART
147
PENDING
AUTORESTART
148
PENDING
AUTORESTART
149
PENDING
AUTORESTART
150
PENDING
CONDENSER
151 PRESSURE
ALERT
RECYCLE
152
ALERT
no message:
153
ALERT only
POTENTIAL
154
FREEZE-UP
*[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 tripped.
Table 19 — ICVC Primary and Secondary Messages and
SECONDARY
MESSAGE
LOW LINE
VOLTAGE
VFD MODULE
RESET
POWER LOSS
LOW DC BUS
VOLTAGE
HIGH DC BUS
VOLTAGE
PUMP RELAY
ENERGIZED
EXCESSIVE RECYCLE
STARTS
no message;
ALERT only
COND PRESS/TEMP
TOO LOW
ALARM MESSAGE
PRIMARY CAUSE
146->Low Percent Line Chiller is automatically restarting -
voltage [VALUE] AUTORESTART OPTION is enabled.
Check LINE VOLTAGE and VFD FAULT CODE
in VFD_HIST screen.
See VFD FAULT CODES in Table 20.
See Table 5.
Check distribution bus.
Consult power company.
147->VFD Module Chiller is automatically restarting -
Power-On Reset When AUTORESTART OPTION is enabled.
Running VFD Module has detected a hardware fault
and has reset.
Check LINE VOLTAGE and VFD FAULT CODE
in VFD_HIST screen.
See VFD FAULT CODES in Table 20.
148->Control Power-Loss Chiller is automatically restarting -
When Running AUTORESTART OPTION is enabled.
Check LINE VOLTAGE in VFD_HIST screen.
Check 24 vac control power voltage on ICVC
terminals J1-4 and J1-5.
See Table 5.
Check distribution bus.
Consult power company.
149->Low DC Bus Chiller is automatically restarting -
Voltage: [VALUE] AUTORESTART OPTION is enabled.
Exceeded Limit of Check DC BUS VOLTAGE and VFD FAULT CODE
[LIMIT]* in VFD_HIST screen.
See VFD FAULT CODES in Table 20.
See Table 5.
150->High DC Bus Chiller is automatically restarting -
Voltage: [VALUE] AUTORESTART OPTION is enabled.
Exceeded Limit of Check DC BUS VOLTAGE and VFD FAULT
[LIMIT]* CODE in VFD_HIST screen.
See VFD FAULT CODES in Table 20.
See Table 5.
Check input power for high voltage transients.
151->High Condenser Check COND PRESS OVERRIDE in
Pressure [VALUE]: Pump SETUP1 screen.
Energized to Check CONDENSER PRESSURE sensor
Reduce Pressure. wiring and accuracy.
Check condenser liquid flow, strainers,
and condenser liquid temperature.
Check for fouled tubes.
This alarm is not caused by the High
Pressure Switch.
152->Excessive Chiller load is too low to keep compressor on line
recycle starts. and there has been more than 5 starts in 4 hours.
Check HGBP Isolation valve position.
Increase chiller load.
Adjust hot gas bypass parameters in
OPTIONS screen.
Increase (RECYCLE CONTROL)
RESTART DELTA T in SETUP1 Screen.
153->Lead/Lag Disabled: Illegal chiller address configuration in
Duplicate Chiller Address; Lead/Lag screen, see Table 7.
Check Configuration Check chiller addresses in LEAD/LAG
and ICVC CONFIGURATION screens.
154->Condenser freeze The chiller is not in pumpdown mode and the
up prevention condenser pressure transducer is reading a
pressure that could freeze the condenser tubes.
Check CONDENSER FREEZE POINT setting.
See Table 5.
Check for condenser refrigerant leaks.
Check condenser liquid temperature.
Check CONDENSER PRESSURE sensor wiring
and accuracy on CCM terminals J2-4, J2-5 and
J2-6.
Place the chiller in PUMPDOWN mode if the
vessel is evacuated.
110
ADDITIONAL
CAUSE/REMEDY