Table 8 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides (cont)
G. COMPRESSOR JUMPSTART AND REFRIGERANT PROTECTION
PRIMARY MESSAGE SECONDARY MESSAGE ALARM MESSAGE/PRIMARY CAUSE ADDITIONAL CAUSE/REMEDY
UNAUTHORIZED
OPERATION
UNIT SHOULD BE
STOPPED
CA P Emergency: Compressor
running without control authorization.
Compressor is running with more than 10% RLA
and control is trying to shut it down. Throw power
off to compressor if unable to stop. Determine cause
before repowering.
POTENTIAL FREEZE-UP EVAP PRESS/TEMP
TOO LOW
ERT Emergency: Freeze-up
prevention.
Determine cause. If pumping refrigerant out of ma-
chine, stop operation and go over pumpout
procedures.
FAILURE TO STOP DISCONNECT POWER RUN AUX Emergency: DISCONNECT
POWER.
Starter and run and start contacts are energized
while control tried to shut down. Disconnect power
to starter.
LOSS OF
COMMUNCIATION
WITH STARTER Loss of Communication with Starter: Check
machine.
Check wiring from PSIO to SMM. Check SMM mod-
ule troubleshooting procedures.
STARTER CONTACT
FAULT
ABNORMAL 1CR OR
RUN AUX
1CR AUX Starter Contact Fault: Check
1CR/1M aux. contacts.
Starter run and start contacts energized while ma-
chine 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 con-
denser tubes. Check for condenser refrigerant leaks,
bad transducers, 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 DEMAND
PRIMARY MESSAGE SECONDARY MESSAGE PROBABLE CAUSE/REMEDY
RUNNING — RESET ACTIVE 4-20MA SIGNAL
Reset program active based upon Config table setup.RUNNING — RESET ACTIVE REMOTE SENSOR CONTROL
RUNNING — RESET ACTIVE CHW TEMP DIFFERENCE
RUNNING — TEMP CONTROL LEAVING CHILLED WATER Default method of temperature control.
RUNNING — TEMP CONTROL ENTERING CHILLED WATER ECW control activated on Config table.
RUNNING — TEMP CONTROL TEMPERATURE RAMP LOADING Ramp loading in effect. Use Service1 table to modify.
RUNNING — DEMAND LIMITED BY DEMAND RAMP LOADING Ramp loading in effect. Use Service1 table to modify.
RUNNING — DEMAND LIMITED BY LOCAL DEMAND SETPOINT Demand limit setpoint is , actual demand.
RUNNING — DEMAND LIMITED BY 4-20MA SIGNAL
Demand limit is active based on Config table setup.RUNNING — DEMAND LIMITED BY CCN SIGNAL
RUNNING — DEMAND LIMITED BY LOADSHED/REDLINE
RUNNING — TEMP CONTROL HOT GAS BYPASS
Hot Gas Bypass is energized. See surge prevention in the control
section.
RUNNING — DEMAND LIMITED BY LOCAL SIGNAL Active demand limit manually overridden or Status01 table.
RUNNING — TEMP CONTROL ICE BUILD MODE Machine is running under Ice Build temperature control.
88
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