Carrier 17EX Start-Up, Operation And Maintenance Instructions Manual page 88

Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
G. START-UP FAILURES: This is an alarm condition. A manual reset is required to clear.
PRIMARY MESSAGE SECONDARY MESSAGE
FAILURE TO START LOW OIL PRESSURE
FAILURE TO START OIL PRESS SENSOR FAULT
FAILURE TO START LOW CHILLED WATER FLOW
FAILURE TO START LOW CONDENSER
WATER FLOW
FAILURE TO START STARTER FAULT
FAILURE TO START STARTER OVERLOAD TRIP
FAILURE TO START LINE VOLTAGE DROPOUT
FAILURE TO START HIGH CONDENSER
PRESSURE
FAILURE TO START EXCESS ACCELERATION
TIME
FAILURE TO START STARTER TRANSITION
FAULT
FAILURE TO START 1CR AUX CONTACT FAULT
FAILURE TO START MOTOR AMPS NOT SENSED
FAILURE TO START CHECK REFRIGERANT TYPE
FAILURE TO START LOW OIL PRESSURE
FAILURE TO START LOW GEAR OIL PRESSURE
FAILURE TO START GEAR OIL PRESSURE SENSOR Gear Oil Pressure Transducer Out of Range [VALUE]. Check calibration of transducer. Replace if
*[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 pressure, temperature, voltage, etc., at which the control tripped.
H. COMPRESSOR JUMPSTART AND REFRIGERANT PROTECTION
PRIMARY MESSAGE SECONDARY MESSAGE
UNAUTHORIZED UNIT SHOULD BE
OPERATION STOPPED
POTENTIAL FREEZE-UP EVAP PRESS/TEMP
TOO LOW
FAILURE TO STOP DISCONNECT POWER
LOSS OF WITH STARTER
COMMUNICATION
STARTER CONTACT ABNORMAL 1CR OR
FAULT RUN AUX
POTENTIAL FREEZE UP COND PRESS/TEMP
TOO LOW
*[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 pressure, temperature, voltage, etc., at which the control tripped.
with Troubleshooting Guides (cont)
ALARM MESSAGE/PRIMARY CAUSE
OILPD [VALUE] exceeded limit of [LIMIT]*. Check
oil pump system.
OILPD [VALUE] exceeded limit of [LIMIT]*. Check
oil pressure sensor.
EVFL Evap Flow Fault: Check water pump/flow
switch.
CDFL Cond. Flow Fault: Check water pump/flow
switch.
STR FLT Starter Fault: Check Starter for Fault
Source.
STR FLT Starter Overload Trip: Check amps
calibration/reset overload.
V P Single-Cycle Dropout Detected: Check volt-
age supply.
High Condenser Pressure [LIMIT]:* Check switch
2C aux, and water temperature/flow.
CA P Excess Acceleration: Check guide vane clo-
sure at start-up.
RUN AUX Starter Transition Fault: Check 1CR/
1M/Interlock mechanism.
1CR AUX Starter Contact Fault: Check 1CR/1M
aux. contacts.
CA P Motor Amps Not Sensed: Check motor load
signal.
Current Refrigerant Properties Abnormal — Check
Selection of refrigerant type.
Low Oil Pressure [LIMIT]:* Check oil pressure switch/
pump and 2C aux.
GEAROILP [VALUE] exceeded limit of [LIMIT].*
Check gear oil pump/filter.
ALARM MESSAGE/PRIMARY CAUSE
CA P Emergency: Compressor
running without control authorization.
ERT Emergency: Freeze-up
prevention.
RUN AUX Emergency: DISCONNECT
POWER.
Loss of Communication with Starter: Check
chiller.
1CR AUX Starter Contact Fault: Check
1CR/1M aux. contacts.
CRT [VALUE] exceeded limit of [LIMIT]*
Emergency: Freeze-up prevention.
88
ADDITIONAL CAUSE/REMEDY
Check for closed oil supply valves. Check oil filter.
Check for low oil temperature. Check transducer
accuracy.
Check for excessive refrigerant in oil sump. Run oil
pump manually for 5 minutes. Check calibration of
oil pressure differential amplifier modules. Check wir-
ing. Replace transducers if necessary.
Check wiring to flow switch. Check through CON-
TROL TEST for proper switch operation.
Check wiring to flow switch. Check through CON-
TROL TEST for proper switch operation.
A starter protective device has faulted. Check starter
for ground fault, voltage trip, temperature trip, etc.
Reset overloads, check ICR relay before restarting
chiller.
Check voltage supply. Check transformers for sup-
ply. Check with utility if voltage supply is erratic. Moni-
tor must be installed to confirm consistent, single-
cycle dropouts. Check low oil pressure switch.
Check for proper design condenser flow and tem-
perature. Check condenser approach. Check 2C aux-
iliary contacts on oil sump starter. Check high pres-
sure switch.
Check that guide vanes are closed at start-up. Check
starter for proper operation. Reduce unit pressure
if possible.
Check starter for proper operation.
Run contact failed to close.
Check starter for proper operation.
Start contact failed to close.
Check for proper motor amps signal to SMM. Check
wiring from SMM to current transformer. Check main
motor circuit breaker for trip.
Pressures at transducers indicate another refriger-
ant type in control test. Make sure to access the AT-
TACH TO NETWORK DEVICE screen after speci-
fying HFC-134a refrigerant type.
The oil pressure differential switch is open when the
compressor tried to start. Check the switch for proper
operation. Also, check the oil pump interlock (2C aux)
in the power panel and the high condenser pres-
sure switch.
Check for closed oil supply valves. Check oil filter.
Check transducer accuracy.
necessary.
ADDITIONAL CAUSE/REMEDY
Compressor is running with more than 10% RLA
and control is trying to shut it down. Turn power
off to compressor if unable to stop. Determine cause
before re-powering.
Determine cause. If pumping refrigerant out of
chiller, stop operation and go over pumpout
procedures.
Starter run and start contacts are energized while
control tried to shut down. Disconnect power to
starter.
Check wiring from PSIO to SMM. Check SMM mod-
ule troubleshooting procedures.
Starter run and start contacts energized while chiller
was off. Disconnect power.
The condenser pressure transducer is reading a
pressure that could freeze the water in the con-
denser tubes. Check for condenser refrigerant leaks,
bad transducers, or transferred refrigerant. Place
the unit in PUMPDOWN mode to eliminate the
alarm if vessel is evacuated.