Carrier 23xl Start-Up, Operation And Maintenance Instructions Manual page 81

Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
F. NORMAL RUN
PRIMARY MESSAGE
RUNNING — RESET ACTIVE
RUNNING — RESET ACTIVE
RUNNING — RESET ACTIVE
RUNNING — TEMP CONTROL
RUNNING — TEMP CONTROL
RUNNING — TEMP CONTROL
RUNNING — DEMAND LIMITED
RUNNING — DEMAND LIMITED
RUNNING — DEMAND LIMITED
RUNNING — DEMAND LIMITED
RUNNING — DEMAND LIMITED
RUNNING — TEMP CONTROL
RUNNING — DEMAND LIMITED
RUNNING —TEMP CONTROL
G. NORMAL RUN WITH OVERRIDES
PRIMARY
STATE
MESSAGE
RUN CAPACITY
120
LIMITED
RUN CAPACITY
121
LIMITED
RUN CAPACITY
122
LIMITED
RUN CAPACITY
123
LIMITED
RUN CAPACITY
124
LIMITED
RUN CAPACITY
125
LIMITED
RUN CAPACITY
126
OVERRIDE
*[LIMIT] is shown on the CVC 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 has recorded at the time of the fault condition.
H. OUT-OF-RANGE SENSOR ALARMS
PRIMARY
STATE
MESSAGE
SENSOR
260
FAULT
SENSOR
261
FAULT
SENSOR
262
FAULT
SENSOR
263
FAULT
SENSOR
264
FAULT
SENSOR
265
FAULT
SENSOR
266
FAULT
SENSOR
267
FAULT
SENSOR
268
FAULT
SENSOR
269
FAULT
Table 9 — CVC Primary and Secondary Messages and
SECONDARY MESSAGE
4-20 mA SIGNAL
REMOTE TEMP SENSOR
CHW TEMP DIFFERENCE
LEAVING CHILLED WATER
ENTERING CHILLED WATER
TEMPERATURE RAMP LOADING
BY DEMAND RAMP LOADING
BY LOCAL DEMAND SETPOINT
BY 4-20 mA SIGNAL
BY CCN SIGNAL
BY LOADSHED/REDLINE
HOT GAS BYPASS
BY LOCAL SIGNAL
ICE BUILD MODE
SECONDARY
MESSAGE
HIGH CONDENSER 120->Condenser Pressure
PRESSURE [VALUE] exceeded limit of
[LIMIT]*.
HIGH MOTOR 121->Comp Motor Winding
TEMPERATURE Temp [VALUE] exceeded limit
of [LIMIT]*.
LOW EVAP 122->Evaporator Refrig
REFRIG TEMP Temp [VALUE] exceeded limit
of [LIMIT]*.
HIGH COMPRESSOR 123->Stall Prevention
LIFT Override: Lift Too High For
Compressor.
MANUAL SLIDE 124->Run Capacity Limited:
VALVE Manual Slide Valve Control.
LOW DISCHARGE No messages.
SUPERHEAT
ROTOR INLET 126->Run Capacity Override:
TEMPERATURE Rotor Inlet Temp.
SECONDARY
MESSAGE
LEAVING CHILLED 260->Sensor Fault:
WATER Leaving Chilled Water
ENTERING CHILLED 261->Sensor Fault:
WATER Entering Chilled Water
CONDENSER 262->Sensor Fault:
PRESSURE Condenser Pressure
EVAPORATOR 263->Sensor Fault:
PRESSURE Evaporator Pressure
ROTOR INLET 264->Sensor Fault:
TEMP Rotor Inlet Temp
COMPRESSOR 265->Sensor Fault:
MOTOR TEMP Comp Motor Winding Temp
OIL SUMP 266->Sensor Fault:
TEMP Oil Sump Temp
COMP OIL 267->Sensor Fault:
PRESS DIFF Oil Sump Temp
CHILLED WATER 269->Sensor Fault:
FLOW Chilled Water Delta P
COND WATER 270->Sensor Fault:
FLOW Cond Water Delta P
Auto chilled water reset active based on external input.
Auto chilled water reset active based on external input.
Auto chilled water reset active based on cooler ∆T.
Default method of temperature control.
Entering Chilled Water (ECW) control enabled in TEMP_CTL screen
Ramp Loading in effect. Use RAMP_DEM screen to modify.
Ramp Loading in effect. Use RAMP_DEM screen to modify.
Demand limit set point is less than actual demand.
Demand limit is active based on external auto demand limit option.
Demand limit is active based on control limit signal from CCN.
Demand limit is active based on LOADSHED screen set-up.
Hot gas bypass option is energized. See stall prevention in the control
section.
Active demand limit manually overridden on MAINSTAT table.
Chiller is running under Ice Build temperature control.
ALARM MESSAGE
PRIMARY CAUSE
Check for high condenser water temperatures.
Check setting in SETUP1.
Check motor cooling lines.
Check for closed valves.
Check setting in SETUP1.
Check refrigerant charge.
Check for low entering cooler temperatures.
Check for high condenser water temperatures
or low suction temperature.
Slide valve point has been forced in MAINSTAT
screen. Release force to continue normal
operation.
Check oil charge.
Check refrigerant charge.
ALARM MESSAGE
PRIMARY CAUSE
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor wiring.
Check sensor wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor resistance or voltage drop.
Check for proper wiring.
Check sensor wiring and accuracy.
Check sensor wiring and accuracy.
81
CAUSE/REMEDY
ADDITIONAL CAUSE/REMEDY
ADDITIONAL CAUSE/REMEDY