Table 12 Ð 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 transformer power (5 vdc) supply to

 

 

Check transducer power supply.

transducers. Power must be 4.5 to 5.5 vdc.

PROTECTIVE LIMIT

LOW GEAR OIL PRESSURE

GEAROILP [VALUE] exceeded imit of

Check for closed oil supply valves. Check oil ®l-

 

 

[LIMIT]*. Check gear oil pump ®lter.

ter. Check transducer accuracy.

PROTECTIVE LIMIT

HIGH GEAR OIL TEMP

GEAOILT [VALUE] exceeded limit of

Check for cooler water ¯ow. Check sensor for

 

 

[LIMIT]*. Check gear oil cooler ®lter.

accuracy.

PROTECTIVE LIMIT

CCN OVERRIDE STOP

CHIL

 

S

 

S CCN. Override stop while in

Machine received a command from the net-

 

 

local run mode.

work to stop overriding local operating mode.

 

 

 

 

 

 

 

 

 

 

*[LIMIT] is shown on the LID as the temperature, pressure, voltage, etc., set point prede®ned 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

Check that guide vanes are closing. Check

 

 

drive.

motor amps correction calibration is cor-

 

 

 

 

 

 

rect. Check actuator for proper operation.

SENSOR FAULT ALERT

LEAVING COND WATER TEMP

Sensor Fault: Check leaving condenser

Check sensor. See sensor test procedure.

 

 

water sensor.

 

SENSOR FAULT ALERT

ENTERING COND WATER TEMP

Sensor Fault: Check entering condenser

 

 

 

water sensor.

 

LOW OIL PRESSURE

CHECK OIL FILTER

Low Oil Pressure Alert: Check oil

Check oil ®lter. Check for improper oil level

ALERT

 

 

 

 

 

or temperature.

AUTORESTART PENDING

POWER LOSS

V

 

 

P Power Loss: Check voltage

Check power supply if there are excessive

 

 

supply.

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

Discharge temperature exceeded the alert

 

 

[LIMIT]*. Check discharge

threshold. Check entering condenser water

 

 

temperature.

temperature.

SENSOR ALERT

HIGH BEARING TEMP

MTRB [VALUE] exceeded limit of

Thrust bearing temperature exceeded the

 

 

[LIMIT]*. Check thrust bearing

alert threshold. Check for closed valves, im-

 

 

temperature.

proper oil level or temperatures.

CONDENSER PRESSURE

PUMP RELAY ENERGIZED

CRP High Condenser Pressure [LIMIT]*.

Check ambient conditions. Check con-

ALERT

 

Pump energized to reduce pressure.

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

Check for closed oil supply valves. Check

 

 

[LIMIT]*. Check gear oil pump ®lter.

oil ®lter. Check transducer accuracy.

SENSOR ALERT

HIGH GEAR OIL TEMP

GEAOILT [VALUE] exceeded limit of

Check for cooler water ¯ow. Check sensor

 

 

[LIMIT]*. Check gear oil cooler ®lter.

for accuracy.

*[LIMIT] is shown on the LID as the temperature, pressure, voltage, etc., set point prede®ned 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.

91

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Carrier 17EX specifications Sensor Fault Alert, LOW OIL Pressure, Autorestart Pending, Sensor Alert, Condenser Pressure

17EX specifications

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