Specifications

85
Table 15 — ICVC Primary and Secondary Messages and
Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
H. OUT-OF-RANGE SENSOR ALARMS (cont)
STATE
PRIMARY
MESSAGE
SECONDARY
MESSAGE
ALARM MESSAGE
PRIMARY CAUSE
ADDITIONAL
CAUSE/REMEDY
266 SENSOR FAULT
OIL SUMP TEMP
266->Sensor Fault: Check Oil Sump
Temp Sensor
Check sensor resistance or voltage drop against
Table 17A or 17B.
Check for proper wiring between Oil Sump
Pressure Sensor and CCM.
Check for grounded sensor lead.
See Table 5.
267 SENSOR FAULT
COMP DISCHARGE
TEMP
267->Sensor Fault: Check Comp
Discharge Temp Sensor
Check sensor resistance or voltage drop against
Table 17A or 17B.
Check for proper wiring between sensor and CCM.
Check for grounded sensor lead.
See Table 5.
268 SENSOR FAULT
CHILLED LIQUID FLOW
268->Sensor Fault: Check Chilled
Liquid Delta P Sensor
Check for 4.3 kohm load resistor on J3-14 and J3-15.
Check for jumper between J3-17 and J3-18.
Confirm that 5V Reference voltage is available
on CCM.
See Table 5.
Check sensor voltage drops.
Check for proper wiring between optional Entering
Chilled Liquid Pressure and Leaving Chilled
Liquid Pressure Sensors and CCM.
Check for grounded sensor lead.
Check for condensation inside of optional pressure
sensor connectors.
J3-17 to J3-18 jumper must be replaced with a
4.3 kohm resistor if optional flow switch is installed,
see Certified Prints.
269 SENSOR FAULT
COND LIQUID FLOW
269->Sensor Fault: Check Cond
Liquid Delta P Sensor
Check for 4.3 kohm load resistor on J3-20 and J3-21.
Check for jumper between J3-23 and J3-24.
Confirm that 5V Reference voltage is available
on CCM.
See Table 5.
Check sensor voltage drops.
Check for proper wiring between optional Entering
Condenser Liquid Pressure and Leaving Condenser
Liquid Pressure Sensors and CCM.
Check for grounded sensor lead.
Check for condensation inside of optional pressure
sensor connectors.
J3-17 to J3-18 jumper must be replaced with a
4.3 kohm resistor if optional flow switch is installed,
see Certified Prints.
270 SENSOR FAULT
EVAP REFRIG
LIQUID TEMP
270->Sensor Fault: Check Evap
Refrig Liquid Temp Sensor
Check sensor resistance or voltage drop against
Table 17A or 17B.
Check for proper wiring between Evaporator Refrigerant
Liquid Temperature Sensor and CCM.
Check for grounded sensor lead.
See Table 5.
271 SENSOR FAULT
VAPORIZER TEMP
271->Sensor Fault: Check Vaporizer
Temp Sensor
Check sensor resistance or voltage drop against
Table 17A or 17B.
Check for proper wiring between Vaporizer
Temperature Sensor and CCM.
Check for grounded sensor lead.
See Table 5.
272 SENSOR FAULT
DISCHARGE
PRESSURE
272->Sensor Fault: Check Discharge
Pressure Sensor
Confirm that 5V Reference voltage is available
on CCM.
Check sensor voltage drop.
Check for proper wiring between Compressor
Discharge Pressure Sensor and CCM.
Check for grounded sensor lead.
Check for condensation inside of pressure sensor
connector.
See Table 5.