Carrier 17 Start Up & Operation Manual page 87

Table 8 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
E. NORMAL OR AUTO.-RESTART
PRIMARY MESSAGE
STARTUP IN PROGRESS
STARTUP IN PROGRESS
STARTUP IN PROGRESS
AUTORESTART IN PROGRESS
AUTORESTART IN PROGRESS
AUTORESTART IN PROGRESS
F. 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
*[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)
SECONDARY MESSAGE
OCCUPIED MODE
REMOTE CONTACT CLOSED
START COMMAND IN EFFECT
OCCUPIED MODE
REMOTE CONTACT CLOSED
START COMMAND IN EFFECT
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.
87
PROBABLE CAUSE/REMEDY
Machine starting. Time schedule is occupied.
Machine starting. Remote contacts are closed.
Machine starting. Chiller START/STOP on Status01 manually forced
to start.
Machine starting. Time schedule is occupied.
Machine starting. Remote contacts are closed.
Machine starting. Chiller START/STOP on Status01 manually forced
to start.
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. For hermetic com-
pressors, check both oil pressure and cooler pres-
sure. For open-drive units, check calibration of oil
pressure differential amplifier modules. Check wir-
ing. Replace transducers if necessary.
Check wiring to flow switch. Check through Control
Test for proper switch operation.
Check wiring to flow switch. Check through Control
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
machine.
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
ATTACH TO NETWORK DEVICE table 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 con-
denser pressure switch.