Carrier 19XL Start-Up, Operation And Maintenance Instructions Manual page 69

Hermetic centrifugal liquid chillers 50/60 hz with hcfc-22 and hfc-134a
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Table 9 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
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., predefined or selected by the operator as an override or an alert. [VALUE] is
the actual temperature, pressure, voltage, etc., at which the control tripped.
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
NOTE: See Legend on page 68.
with Troubleshooting Guides (cont)
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.
SECONDARY MESSAGE
OCCUPIED MODE
REMOTE CONTACT CLOSED
START COMMAND IN EFFECT
OCCUPIED MODE
REMOTE CONTACT CLOSED
START COMMAND IN EFFECT
69
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.
Chiller in ICE BUILD mode. Chilled Water/Brine Tem-
perature is satisfied for Ice Build Setpoint temperature.
ADDITIONAL CAUSE/REMEDY
Depress the RESET softkey if addi-
tional 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 opera-
tion, check for low oil level, partially
closed oil supply valves, etc. Check
sensor accuracy.
Check sensor accuracy. Allow dis-
charge temperature 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 volt-
age transformers. Consult power
utility if voltage is low. Adjust voltage
potentiometer in starter for SMM
voltage input.
Check voltage supply. Check volt-
age transformers. Consult power
utility if voltage is low. Adjust voltage
potentiometer in starter for SMM
voltage input.
Check for high condenser water
temperature. Check transducer
accuracy.
PROBABLE CAUSE/REMEDY
Chiller starting. Time schedule is occupied.
Chiller starting. Remote contacts are closed.
Chiller starting. Chiller START/STOP on Status01 manu-
ally forced to start.
Chiller starting. Time schedule is occupied.
Chiller starting. Remote contacts are closed.
Chiller starting. Chiller START/STOP on Status01 manu-
ally forced to start.

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