Table 9 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages
with Troubleshooting Guides (cont)
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.
I. NORMAL RUN OVERRIDES ACTIVE (ALERTS)
PRIMARY MESSAGE
SECONDARY MESSAGE
ALARM MESSAGE/PRIMARY CAUSE
ADDITIONAL CAUSE/REMEDY
RUN CAPACITY LIMITED HIGH CONDENSER PRESSURE CRP [VALUE]* exceeded limit of [LIMIT]*.
Condenser pressure override.
See Capacity Overrides, Table 4.
Correct operating condition, modify set-
point, or release override.
RUN CAPACITY LIMITED HIGH MOTOR TEMPERATURE
MTRW [VALUE]* exceeded limit of [LIMIT]*.
Motor temperature override.
RUN CAPACITY LIMITED LOW EVAP REFRIG TEMP
ERT [VALUE]* exceeded limit of [LIMIT]*.
Check refrigerant charge level.
RUN CAPACITY LIMITED HIGH COMPRESSOR LIFT
Surge Prevention Override; lift too high for
compressor.
RUN CAPACITY LIMITED MANUAL GUIDE VANE TARGET GV
TRG Run Capacity Limited: Manual
guide vane target.
*[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 temperature, pressure, voltage, etc., at which the control tripped.
J. OUT-OF-RANGE SENSOR FAILURES
PRIMARY MESSAGE
SECONDARY MESSAGE
ALARM MESSAGE/PRIMARY CAUSE
ADDITIONAL CAUSE/REMEDY
SENSOR FAULT
LEAVING CHW TEMPERATURE
Sensor Fault: Check leaving CHW
sensor.
See sensor test procedure and check
sensors for proper operation and
wiring.
SENSOR FAULT
ENTERING CHW TEMPERATURE Sensor Fault: Check entering CHW
sensor.
SENSOR FAULT
CONDENSER PRESSURE
Sensor Fault: Check condenser pressure
transducer.
SENSOR FAULT
EVAPORATOR PRESSURE
Sensor Fault: Check evaporator pres-
sure transducer.
SENSOR FAULT
BEARING TEMPERATURE
Sensor Fault: Check bearing temp/impeller
displacement switch.
SENSOR FAULT
MOTOR WINDING TEMP
Sensor Fault: Check motor temperature
sensor.
SENSOR FAULT
DISCHARGE TEMPERATURE
Sensor Fault: Check discharge tempera-
ture sensor.
SENSOR FAULT
OIL SUMP TEMPERATURE
Sensor Fault: Check oil sump tempera-
ture sensor.
SENSOR FAULT
OIL PRESSURE TRANSDUCER
Sensor Fault: Check oil pressure
transducer.
57
Summary of Contents for 19EF Series
Page 10: ...Fig 5 19EF Controls and Sensor Locations cont 10...
Page 13: ...Fig 12 19EF Menu Structure 13...
Page 14: ...Fig 13 19EF Service Menu Structure 14...
Page 38: ...Fig 24 19EF Leak Test Procedures 38...
Page 69: ...Fig 36 Electronic PIC Controls Wiring Schematic 69...
Page 70: ...Fig 36 Electronic PIC Controls Wiring Schematic cont 70...
Page 71: ...Fig 37 Machine Power Panel Starter Assembly and Motor Wiring Schematic 71...