Troubleshooting Guide - Carrier 17 Start Up & Operation Manual

Centrifugal liquid chillers 50/60 hz with hfc-134a
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Table 8 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
A. SHUTDOWN WITH ON/OFF/RESET-OFF
PRIMARY MESSAGE
MANUALLY STOPPED — PRESS
TERMINATE PUMPDOWN MODE
SHUTDOWN IN PROGRESS
SHUTDOWN IN PROGRESS
ICE BUILD
B. TIMING OUT OR TIMED OUT
PRIMARY MESSAGE
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START
READY TO START
READY TO START
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START
READY TO START
STARTUP INHIBITED
READY TO START IN XX MIN
C. IN RECYCLE SHUTDOWN
PRIMARY MESSAGE
RECYCLE RESTART PENDING
RECYCLE RESTART PENDING
RECYCLE RESTART PENDING
RECYCLE RESTART PENDING
D. PRE-START ALERTS: These alerts only delay start-up. When alert is corrected, the start-up will continue. No reset is necessary.
PRIMARY MESSAGE
SECONDARY MESSAGE
PRESTART ALERT
STARTS LIMIT EXCEEDED
PRESTART ALERT
HIGH MOTOR TEMPERATURE
PRESTART ALERT
HIGH BEARING TEMPERATURE
PRESTART ALERT
HIGH DISCHARGE TEMP
PRESTART ALERT
LOW REFRIGERANT TEMP
PRESTART ALERT
LOW OIL TEMPERATURE
PRESTART ALERT
LOW LINE VOLTAGE
PRESTART ALERT
HIGH LINE VOLTAGE
PRESTART ALERT
HIGH CONDENSER PRESSURE
*[LIMIT] is shown on the LID as 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.
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SECONDARY MESSAGE
CCN OR LOCAL TO START
TO SELECT CCN OR LOCAL
COMPRESSOR UNLOADING
COMPRESSOR DEENERGIZED
OPERATION COMPLETE
SECONDARY MESSAGE
UNOCCUPIED MODE
REMOTE CONTACTS OPEN
STOP COMMAND IN EFFECT
RECYCLE RESTART PENDING
UNOCCUPIED MODE
REMOTE CONTACTS OPEN
STOP COMMAND IN EFFECT
REMOTE CONTACTS CLOSED
OCCUPIED MODE
REMOTE CONTACTS CLOSED
OCCUPIED MODE
LOADSHED IN EFFECT
START COMMAND IN EFFECT
SECONDARY MESSAGE
OCCUPIED MODE
REMOTE CONTACT CLOSED
START COMMAND IN EFFECT
ICE BUILD MODE
ALARM MESSAGE/PRIMARY CAUSE
STARTS EXCESSIVE Compressor Starts (8 in
12 hours)
MTRW [VALUE] exceeded limit of [LIMIT]*.
Check motor temperature.
MTRB [VALUE] exceeded limit of [LIMIT]*.
Check thrust bearing temperature.
CMPD [VALUE] exceeded limit of [LIMIT]*.
Check discharge temperature.
ERT [VALUE] exceeded limit of [LIMIT]*. Check
refrigerant temperature.
OILT [VALUE] exceeded limit of [LIMIT]*.
Check oil temperature.
V
P [VALUE] exceeded limit of [LIMIT]*.
Check voltage suppy.
V
P [VALUE] exceeded limit of [LIMIT]*.
Check voltage supply.
CRP [VALUE] exceeded limit of [LIMIT]*. Check
condenser water and transducer.
86
PROBABLE CAUSE/REMEDY
PIC in OFF mode, press the CCN or local softkey to
start unit.
Enter the Control Test table and select Terminate Lockout to
unlock compressor.
Machine unloading before shutdown due to Soft Stop feature.
Machine compressor is being commanded to stop. Water pumps are
deenergized within one minute.
Machine shutdown from Ice Build operation.
PROBABLE CAUSE/REMEDY
Time schedule for PIC is unoccupied.
Machines will start only when occupied.
Remote contacts have stopped machine. Close contacts to start.
Chiller START/STOP on Status01 manually forced to stop. Release
value to start.
Machine in recycle mode.
Time schedule for PIC is UNOCCUPIED. Machine will start when
occupied. Make sure the time and date have been set on the
Service menu.
Remote contacts have stopped machine. Close contacts to start.
Chiller START/STOP on Status01 manually forced to stop. Release
value to start.
Machine timer counting down unit. Ready for start.
Machine timer counting down unit. Ready for start.
Machine timers complete, unit start will commence.
Machine timers complete, unit start will commence.
CCN loadshed module commanding chiller to stop.
Chiller START/STOP on Status01 has been manually forced to start.
Machine will start regardless of time schedule or remote contact
status.
PROBABLE CAUSE/REMEDY
Unit in recycle mode, chilled water temperature is not high enough
to start.
Unit in recycle mode, chilled water temperature is not high enough
to start.
Chiller START/STOP on Status01 manually forced to start, chilled
water temperature is not high enough to start.
Machine in ICE BUILD mode. Chilled Water/Brine Temperature is
satisfied for Ice Build Setpoint temperature.
ADDITIONAL CAUSE/REMEDY
Depress the RESET softkey if additional start is
required. Reassess start-up requirements.
Check motor cooling line for proper operation.
Check for excessive starts within a short time
span.
Check oil heater for proper operation, check for
low oil level, partially closed oil supply valves,
etc. Check sensor accuracy.
Check sensor accuracy. Allow discharge tem-
perature to cool. Check for excessive starts.
Check transducer accuracy. Check for low chilled
water/brine supply temperature.
Check oil heater power, oil heater relay. Check
oil level.
Check voltage supply. Check voltage transform-
ers. Consult power utility if voltage is low. Cali-
brate voltage reading on STATUS01 Table.
Check voltage supply. Check voltage transform-
ers. Consult power utility if voltage is low. Cali-
brate voltage reading on STATUS01 table.
Check for high condenser water temperature.
Check transducer accuracy.

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