Voltage Drop - Carrier AquaEdge 19XR series Start-Up, Operation And Maintenance Instructions Manual

Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
H. OUT-OF-RANGE SENSOR ALARMS
STATE PRIMARY MESSAGE
260 SENSOR FAULT
261 SENSOR FAULT
262 SENSOR FAULT
263 SENSOR FAULT
264 SENSOR FAULT
265 SENSOR FAULT
266 SENSOR FAULT
267 SENSOR FAULT
268 SENSOR FAULT
269 SENSOR FAULT
270 SENSOR FAULT
271 SENSOR FAULT
272 SENSOR FAULT
Table 16 — ICVC Primary and Secondary Messages and
SECONDARY MESSAGE
LEAVING CHILLED WATER
ENTERING CHILLED WATER
CONDENSER PRESSURE
EVAPORATOR PRESSURE
COMPRESSOR BEARING TEMP
COMPRESSOR MOTOR TEMP
COMP DISCHARGE TEMP
OIL SUMP TEMP
COMP OIL PRESS DIFF
CHILLED WATER FLOW
COND WATER FLOW
VFD SPEED OUT OF RANGE
EVAP REFRIG LIQUID TEMP
PRIMARY CAUSE
260->Sensor Fault: Check Leaving
Chilled Water Sensor
261->Sensor Fault: Check Enter-
ing Chilled Water Sensor
262->Sensor Fault: Check Con-
denser Pressure Sensor
263->Sensor Fault: Check Evapo-
rator Pressure Sensor
264->Sensor Fault: Check Comp
Thrust Brg Temp Sensor
265->Sensor Fault: Check Comp
Motor Winding Temp Sensor
266->Sensor Fault: Check Comp
Discharge Temp Sensor
267->Sensor Fault: Check Oil
Sump Temp Sensor
268->Sensor Fault: Check Oil
Pump Delta P Sensor
269->Sensor Fault: Check Chilled
Water Delta P Sensor
270->Sensor Fault: Check Cond
Water Delta P Sensor
271->Sensor Fault: Check Actual
VFD Speed
272->Sensor Fault: Check Evap
Refrig Liquid Temp Sensor
104
ADDITIONAL
CAUSE/REMEDY
Check sensor resistance or voltage drop
against Table 17A or 17B.
Check for proper wiring between LEAVING
CHILLED WATER Temperature Sensor and
CCM J4-3 and J4-4. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance or voltage drop
against Table 17A or 17B.
Check for proper wiring between ENTERING
CHILLED WATER Temperature Sensor and
CCM J4-1 and J4-2. Check for disconnected,
grounded, or shorted wiring.
Check CONDENSER PRESSURE transducer
wiring. Confirm that 5 V reference signal is
available between CCM J2-4 and J2-6. Check
for disconnected, grounded, or shorted wiring.
Check for condensation in transducer
connector.
Check EVAPORATOR PRESSURE transducer
wiring. Confirm that 5 V reference signal is
available between CCM J2-1 and J2-3. Check
for disconnected, grounded, or shorted wiring.
Check for condensation in transducer
connector.
Check sensor resistance or voltage drop
against Table 17A or 17B.
Check for proper wiring between COMP
THRUST BRG TEMP Sensor and CCM J4-19
and J4-20. Check for disconnected, grounded,
or shorted wiring.
Check sensor resistance or voltage drop
against Table 17A or 17B.
Check for proper wiring between COMP
MOTOR WINDING TEMP Sensor and CCM J4-
23 and J4-24. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance or voltage drop
against Table 17A or 17B.
Check for proper wiring between COMP DIS-
CHARGE TEMP Sensor and CCM J4-17 and
J4-18. Check for disconnected, grounded, or
shorted wiring.
Check sensor resistance or voltage drop
against Table 17A or 17B.
Check for proper wiring between OIL SUMP
TEMP and CCM J4-21 and J4-22. Check for
disconnected, grounded, or shorted wiring.
Check Oil Sump Pressure and Oil Pump Dis-
charge Pressure sensor wiring and accuracy.
Confirm that 5 V reference signal is available
between CCM J3-1 and J3-3 and J3-4 and J3-
6. Check for disconnected, grounded, or
shorted OIL PUMP DELTA P wiring.
Check CHILLED WATER DELTA P transducer
wiring and accuracy. Check FLOW DELTA P
DISPLAY setting in SETUP1 screen. Confirm
that 5 V reference signal is available between
CCM J3-13 and J3-15 and J3-16 and J3-18.
Check for disconnected, grounded, or shorted
wiring. If pressure transducers are not installed,
check for presence of resistors and jumpers
CCM terminals J3-13 through J3-18. See
Chiller Controls Schematic if flow switches are
used.
Check CONDENSER WATER DELTA P trans-
ducer wiring and accuracy. Check FLOW
DELTA P DISPLAY setting in SETUP1 screen.
Confirm that 5 V reference signal is available
between CCM J3-19 and J3-21 and J3-22 and
J3-24. Check for disconnected, grounded, or
shorted wiring. If pressure transducers are not
installed, check for presence of resistors and
jumpers CCM terminals J3-19 through J3-24.
See Chiller Controls Schematic if flow switches
are used.
Check 0 - 5 V DC input from VFD to ISM termi-
nals J6-1 and J6-2.
Check VFD speed feedback signal calibration.
Check VFD configuration, jumpers, and dip
switch settings. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance or voltage drop
against Table 17A or 17B.
Check for proper wiring between EVAP
REFRIG LIQUID TEMP Sensor and CCM J4-11
and J4-12. Check for disconnected, grounded,
or shorted wiring.