Carrier 17/19EX Start-Up, Operation And Maintenance Instructions Manual page 324

50/60 hz centrifugal liquid chillers with hfc-134a
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Table 8 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides
L. Machine Alerts
Primary
Secondary
Message
Message
High Amps at Shut-
down
Recycle Alert
Leaving Cond Water
Sensor Fault
Temp
Alert
Entering Cond Water
Sensor Fault
Temp
Alert
Check Oil Filter
Low Oil
Pressure Alert
Power Loss
AutoRestart
Pending
Low Line Voltage
AutoRestart
Pending
High Line Voltage
AutoRestart
Pending
High Discharge Temp
Sensor Alert
High Bearing Temper-
ature
Sensor Alert
Pump Relay Energized
Condenser
Pressure Alert
Alarm Message/
Primary Cause
High Amps at Recycle:
Check guide vane
drive.
Sensor Fault: Check
leaving condenser
water sensor.
Sensor Fault: Check
entering condenser
water sensor.
Low Oil Pessure Alert:
Check oil.
V P Power Loss:
Check voltage supply.
V P [VALUE] exceeded
limit of [LIMIT]*. Check
voltage supply.
V P [VALUE] exceeded
limit of [LIMIT]*. Check
voltage supply.
CMPD [VALUE]
exceeded limit of
[LIMIT]*. Check dis-
charge temperature.
MTRB [VALUE]
exceeded limit of
[LIMIT]*. Check thrust
bearing temperature.
CRP High Condenser
Pressure [LIMIT]*.
Pump energized to
reduce pressure.
Additional Cause/Remedy
Check that guide vanes are closing.
Check motor amps correction calibration is
correct. Check actuator for proper opera-
tion.
Check sensor. See sensor test procedure.
Check oil filter. Check for improper oil level
or temperature.
Check power supply if there are excessive
compressor starts occurring.
Discharge temperature exceeded the alert
threshold. Check entering condenser
water temperature.
Thrust bearing temperature exceeded the
alert threshold. Check for closed valves,
improper oil level or temperatures.
Check ambient conditions. Check con-
denser pressure for accuracy.

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