Carrier 19XR Start-Up, Operation And Maintenance Instructions Manual page 77

Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
J. CHILLER ALERTS (cont)
PRIMARY
STATE
MESSAGE
151 CONDENSER PRESSURE
ALERT
152 RECYCLE
ALERT
153 no message:
ALERT only
154 POTENTIAL
FREEZE-UP
155 OPTION SENSOR
FAULT
156 OPTION SENSOR
FAULT
157 OPTION SENSOR
FAULT
158 SENSOR ALERT
159 SENSOR ALERT
160 DIFFUSER
ALERT
*[LIMIT] is shown on the CVC 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 8 — CVC Primary and Secondary Messages and
SECONDARY
MESSAGE
PUMP RELAY 151->High Condenser
ENERGIZED Pressure [VALUE]: Pump
Energized to Reduce
Pressure.
EXCESSIVE RECYCLE 152->Excessive recycle starts. Chiller load is too low to keep compressor on
STARTS
no message; 153->Lead/Lag Disabled:
ALERT only Duplicate Chiller Address;
Check Configuration
COND PRESS/TEMP 154->Condenser freeze up
TOO LOW prevention
REMOTE RESET 155->Sensor Fault/Option
SENSOR Disabled:
Remote Reset Sensor
AUTO CHILLED 156->Sensor Fault/Option
WATER RESET Disabled:
Auto Chilled Water Reset
AUTO DEMAND 157->Sensor Fault/Option
LIMIT INPUT Disabled:
Auto Demand Limit Input
SPARE TEMPERATURE 158->Spare Temperature #1
#1 [VALUE] exceeded limit of
[LIMIT].*
SPARE TEMPERATURE 159->Spare Temperature #2
#2 [VALUE] exceeded limit of
[LIMIT].*
DIFFUSER 160->Diffuser Position Alert;
POSITION Check Diffuser Configuration.
ALARM MESSAGE
PRIMARY CAUSE
Check sensor wiring and accuracy.
Check condenser flow and fluid temperature.
Check for fouled tubes. This alarm is not
caused by the High Pressure Switch.
line and there has been more than 5 starts in
4 hours. Increase chiller load, adjust hot gas
bypass, increase RECYCLE RESTART DELTA
T from SETUP1 Screen.
Illegal chiller address configuration in Lead/
Lag screen. Both chillers require a different
address.
The condenser pressure transducer is reading
a pressure that could freeze the condenser
tubes.
Check for condenser refrigerant leaks.
Check fluid temperature.
Check sensor wiring and accuracy.
Place the chiller in PUMPDOWN mode if the
vessel is evacuated.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check diffuser configuration in SETUP2
screen.
77
ADDITIONAL
CAUSE/REMEDY