Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides (cont)
L. CHILLER PROTECT LIMIT FAULTS (cont)
Excessive numbers of the same fault can lead to severe chiller
damage. Seek service expertise.
PRIMARY MESSAGE
SECONDARY MESSAGE
ALARM MESSAGE/PRIMARY CAUSE
ADDITIONAL CAUSE/REMEDY
PROTECTIVE LIMIT
TRANSDUCER VOLTAGE FAULT
V
REF [VALUE] exceeded limit of [LIMIT]*.
Check transducer power supply.
Check transformer power (5 vdc) supply to
transducers. Power must be 4.5 to 5.5 vdc.
PROTECTIVE LIMIT
LOW GEAR OIL PRESSURE
GEAROILP [VALUE] exceeded imit of
[LIMIT]*. Check gear oil pump filter.
Check for closed oil supply valves. Check oil fil-
ter. Check transducer accuracy.
PROTECTIVE LIMIT
HIGH GEAR OIL TEMP
GEAOILT [VALUE] exceeded limit of
[LIMIT]*. Check gear oil cooler filter.
Check for cooler water flow. Check sensor for
accuracy.
PROTECTIVE LIMIT
CCN OVERRIDE STOP
CHIL
S
S CCN. Override stop while in
local run mode.
Machine received a command from the net-
work to stop overriding local operating mode.
*[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. [OPEN] indicates that an input circuit is open.
M. CHILLER ALERTS
PRIMARY MESSAGE
SECONDARY MESSAGE
ALARM MESSAGE/PRIMARY CAUSE
ADDITIONAL CAUSE/REMEDY
RECYCLE ALERT
HIGH AMPS AT SHUTDOWN
High Amps at Recycle: Check guide vane
drive.
Check that guide vanes are closing. Check
motor amps correction calibration is cor-
rect. Check actuator for proper operation.
SENSOR FAULT ALERT
LEAVING COND WATER TEMP
Sensor Fault: Check leaving condenser
water sensor.
Check sensor. See sensor test procedure.
SENSOR FAULT ALERT
ENTERING COND WATER TEMP
Sensor Fault: Check entering condenser
water sensor.
LOW OIL PRESSURE
ALERT
CHECK OIL FILTER
Low Oil Pressure Alert: Check oil
Check oil filter. Check for improper oil level
or temperature.
AUTORESTART PENDING
POWER LOSS
V
P Power Loss: Check voltage
supply.
Check power supply if there are excessive
compressor starts occurring.
AUTORESTART PENDING
LOW LINE VOLTAGE
V
P [VALUE] exceeded limit of [LIMIT]*.
Check voltage supply.
AUTORESTART PENDING
HIGH LINE VOLTAGE
V
P [VALUE] exceeded limit of [LIMIT]*.
Check voltage supply.
SENSOR ALERT
HIGH DISCHARGE TEMP
CMPD [VALUE] exceeded limit of
[LIMIT]*. Check discharge
temperature.
Discharge temperature exceeded the alert
threshold. Check entering condenser water
temperature.
SENSOR ALERT
HIGH BEARING TEMP
MTRB [VALUE] exceeded limit of
[LIMIT]*. Check thrust bearing
temperature.
Thrust bearing temperature exceeded the
alert threshold. Check for closed valves, im-
proper oil level or temperatures.
CONDENSER PRESSURE
ALERT
PUMP RELAY ENERGIZED
CRP High Condenser Pressure [LIMIT]*.
Pump energized to reduce pressure.
Check ambient conditions. Check con-
denser pressure for accuracy.
RECYCLE ALERT
EXCESSIVE RECYCLE STARTS
Excessive recycle starts.
The chiller load is too small to keep the chiller
on line and there have been more than 5
restarts in 4 hours. Increase chiller load, ad-
just hot gas bypass, increase
RECYCLE RE-
START DELTA T from SERVICE1 screen.
SENSOR ALERT
LOW GEAR OIL PRESSURE
GEAROILP [VALUE] exceeded imit of
[LIMIT]*. Check gear oil pump filter.
Check for closed oil supply valves. Check
oil filter. Check transducer accuracy.
SENSOR ALERT
HIGH GEAR OIL TEMP
GEAOILT [VALUE] exceeded limit of
[LIMIT]*. Check gear oil cooler filter.
Check for cooler water flow. Check sensor
for accuracy.
*[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.
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