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Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides (cont)
G. START-UP FAILURES: This is an alarm condition. A manual reset is required to clear.
PRIMARY MESSAGE SECONDARY MESSAGE ALARM MESSAGE/PRIMARY CAUSE ADDITIONAL CAUSE/REMEDY
FAILURE TO START LOW OIL PRESSURE OILPD [VALUE] exceeded limit of [LIMIT]*. Check
oil pump system.
Check for closed oil supply valves. Check oil filter.
Check for low oil temperature. Check transducer
accuracy.
FAILURE TO START OIL PRESS SENSOR FAULT OILPD [VALUE] exceeded limit of [LIMIT]*. Check
oil pressure sensor.
Check forexcessive refrigerant in oilsump. Run oil
pump manually for 5 minutes. Check calibration of
oilpressuredifferentialamplifiermodules.Checkwir-
ing. Replace transducers if necessary.
FAILURE TO START LOW CHILLED WATER FLOW EVFL Evap Flow Fault: Check water pump/flow
switch.
Check wiring to flow switch. Check through CON-
TROL TEST for proper switch operation.
FAILURE TO START LOW CONDENSER
WATER FLOW
CDFL Cond. Flow Fault: Check water pump/flow
switch.
Check wiring to flow switch. Check through CON-
TROL TEST for proper switch operation.
FAILURE TO START STARTER FAULT STR FLT Starter Fault: Check Starter for Fault
Source.
Astarterprotectivedevicehasfaulted.Checkstarter
for ground fault, voltage trip, temperature trip, etc.
FAILURE TO START STARTER OVERLOAD TRIP STR FLT Starter Overload Trip: Check amps
calibration/reset overload.
Reset overloads, check ICRrelay before restarting
chiller.
FAILURE TO START LINE VOLTAGE DROPOUT V P Single-Cycle Dropout Detected: Check volt-
age supply.
Check voltage supply. Check transformers for sup-
ply.Checkwithutilityifvoltagesupplyiserratic.Moni-
tor must be installed to confirm consistent, single-
cycle dropouts. Check low oil pressure switch.
FAILURE TO START HIGH CONDENSER
PRESSURE
High Condenser Pressure [LIMIT]:* Check switch
2C aux, and water temperature/flow.
Check for proper design condenser flow and tem-
perature.Checkcondenserapproach.Check2Caux-
iliary contactson oilsump starter. Check highpres-
sure switch.
FAILURE TO START EXCESS ACCELERATION
TIME
CA PExcessAcceleration:Checkguidevaneclo-
sure at start-up.
Checkthatguidevanesareclosedatstart-up. Check
starter for proper operation. Reduce unit pressure
if possible.
FAILURE TO START STARTER TRANSITION
FAULT
RUN AUX Starter Transition Fault: Check 1CR/
1M/Interlock mechanism.
Check starter for proper operation.
Run contact failed to close.
FAILURE TO START 1CR AUX CONTACT FAULT 1CR AUX Starter Contact Fault: Check 1CR/1M
aux. contacts.
Check starter for proper operation.
Start contact failed to close.
FAILURE TO START MOTOR AMPS NOT SENSED CA PMotorAmps NotSensed:Check motorload
signal.
Checkforproper motorampssignaltoSMM.Check
wiringfromSMMto currenttransformer.Checkmain
motor circuit breaker for trip.
FAILURE TO START CHECK REFRIGERANT TYPE Current Refrigerant PropertiesAbnormal — Check
Selection of refrigerant type.
Pressures at transducers indicate another refriger-
anttypein controltest.Makesure toaccesstheAT-
TACH TO NETWORK DEVICE screen after speci-
fying HFC-134a refrigerant type.
FAILURE TO START LOW OIL PRESSURE LowOilPressure[LIMIT]:*Checkoilpressureswitch/
pump and 2C aux.
Theoilpressure differentialswitchisopen whenthe
compressortriedtostart.Checktheswitchfor proper
operation.Also, checktheoilpumpinterlock(2Caux)
in the power panel and the high condenser pres-
sure switch.
FAILURE TO START LOW GEAR OIL PRESSURE GEAROILP [VALUE] exceeded limit of [LIMIT].*
Check gear oil pump/filter.
Check for closed oil supply valves. Check oil filter.
Check transducer accuracy.
FAILURE TO START GEAR OIL PRESSURE SENSOR GearOilPressureTransducerOutofRange[VALUE]. Check calibration of transducer. Replace if
necessary.
*[LIMIT]is shownon theLID asthetemperature, pressure,voltage, etc.,setpoint predefinedor selectedby theoperatoras anoverride, alert,oralarm condition.[VALUE]
is the actual pressure, temperature, voltage, etc., at which the control tripped.
H. COMPRESSOR JUMPSTART AND REFRIGERANT PROTECTION
PRIMARY MESSAGE SECONDARY MESSAGE ALARM MESSAGE/PRIMARY CAUSE ADDITIONAL CAUSE/REMEDY
UNAUTHORIZED
OPERATION
UNIT SHOULD BE
STOPPED
CA P Emergency: Compressor
running without control authorization.
Compressor is running with more than 10% RLA
and control is trying to shut it down. Turn power
offtocompressorifunabletostop.Determinecause
before re-powering.
POTENTIAL FREEZE-UP EVAP PRESS/TEMP
TOO LOW
ERT Emergency: Freeze-up
prevention.
Determine cause. If pumping refrigerant out of
chiller, stop operation and go over pumpout
procedures.
FAILURE TO STOP DISCONNECT POWER RUN AUX Emergency: DISCONNECT
POWER.
Starterrun andstartcontactsare energizedwhile
control tried to shut down. Disconnect power to
starter.
LOSS OF
COMMUNICATION
WITH STARTER Loss of Communication with Starter: Check
chiller.
CheckwiringfromPSIOtoSMM.CheckSMMmod-
ule troubleshooting procedures.
STARTER CONTACT
FAULT
ABNORMAL 1CR OR
RUN AUX
1CR AUX Starter Contact Fault: Check
1CR/1M aux. contacts.
Starterrunandstartcontactsenergizedwhilechiller
was off. Disconnect power.
POTENTIAL FREEZE UP COND PRESS/TEMP
TOO LOW
CRT [VALUE] exceeded limit of [LIMIT]*
Emergency: Freeze-up prevention.
The condenser pressure transducer is reading a
pressure that could freeze the water in the con-
densertubes.Checkforcondenserrefrigerantleaks,
bad transducers,or transferredrefrigerant. Place
the unit in PUMPDOWN mode to eliminate the
alarm if vessel is evacuated.
*[LIMIT]is shownon theLID asthetemperature, pressure,voltage, etc.,setpoint predefinedor selectedby theoperatoras anoverride, alert,oralarm condition.[VALUE]
is the actual pressure, temperature, voltage, etc., at which the control tripped.
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