Carrier 17EX - Manual (Page 91)

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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