Filter
Top Products
Table 9 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides (cont)
G. COMPRESSOR JUMPSTART AND REFRIGERANT PROTECTION
PRIMARY MESSAGE SECONDARY MESSAGE ALARMMESSAGE/PRIMARYCAUSE 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 chiller, stop operation and go over
pumpout procedures.
FAILURE TO 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
WITH STARTER
Loss of Communication with Starter:
Check chiller.
Check wiring from PSIO to SMM. Check
SMM module 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 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 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 Ͻ 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 Chiller is running under Ice Build temperature control.
NOTE: See Legend on page 68.
71