Table 9 — LID Primary and Secondary Messages and CustomAlarm/Alert Messages
with Troubleshooting Guides (cont)
G. COMPRESSOR JUMPSTART AND REFRIGERANT PROTECTIONPRIMARYMESSAGE SECONDARYMESSAGE ALARMMESSAGE/PRIMARY CAUSE ADDITIONAL CAUSE/REMEDY
UNAUTHORIZED
OPERATION UNITSHOULD BE
STOPPED CA P Emergency: Compressor
running without control authorization.
Compressor is running with more than
10% RLAand control is trying to shut it
down. Throw power offto compressor if
unable to stop. Determine cause before
repowering.
POTENTIAL FREEZE-UP EVAP PRESS/TEMP
TOO LOW ERTEmergency: Freeze-up
prevention.
Determine cause. If pumping refrigerant
out of chiller,stop operation and go over
pumpout procedures.
FAILURETO STOP DISCONNECT POWER RUN AUX Emergency: DISCON-
NECT POWER.
Starter and run and start contacts are
energized while control tried to shut
down. Disconnect power to starter.
LOSS OF
COMMUNCIATION WITHSTARTER Loss of Communication with Starter:
Check chiller. Check wiring from PSIO to SMM. Check
SMM module troubleshooting procedures.
STARTERCONTACT
FAULT ABNORMAL1CR OR
RUNAUX 1CR AUX Starter Contact Fault:
Check 1CR/1M aux. contacts. Starter run and start contacts energized
while chiller 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 condenser tubes. Check for
condenser refrigerant leaks, bad trans-
ducers, or transferred refrigerant. Place
the unit in Pumpdown mode to eliminate
ALARM if vessel is evacuated.
*[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. NORMAL RUN WITH RESET, TEMPERATURE, OR DEMANDPRIMARYMESSAGE SECONDARYMESSAGE PROBABLE CAUSE/REMEDY
RUNNING — RESETACTIVE 4-20MASIGNAL
Reset program active based upon Config table setup.RUNNING — RESETACTIVE REMOTESENSOR CONTROL
RUNNING — RESETACTIVE CHWTEMP DIFFERENCE
RUNNING — TEMP CONTROL LEAVINGCHILLED WATER Default method of temperature control.
RUNNING — TEMP CONTROL ENTERINGCHILLED WATER ECW control activated on Config table.
RUNNING — TEMP CONTROL TEMPERATURERAMP LOADING Ramploading in effect. Use Service1 table to modify.
RUNNING — DEMAND LIMITED BYDEMAND RAMP LOADING Ramploading in effect. Use Service1 table to modify.
RUNNING — DEMAND LIMITED BYLOCAL DEMAND SETPOINT Demandlimit setpoint is ,actual demand.
RUNNING — DEMAND LIMITED BY4-20MA SIGNAL
Demand limit is active based on Config table setup.RUNNING — DEMAND LIMITED BYCCN SIGNAL
RUNNING — DEMAND LIMITED BYLOADSHED/REDLINE
RUNNING — TEMP CONTROL HOTGAS BYPASS Hot Gas Bypass is energized. See surge prevention
in the control section.
RUNNING — DEMAND LIMITED BYLOCAL SIGNAL Active demand limit manually overridden or Status01
table.
RUNNING — TEMP CONTROL ICEBUILD MODE Chiller is running under Ice Build temperature control.
NOTE: See Legend on page 68.
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