Installation manual

EcoBreeze System Operation and Maintenance42
Discharge Temperature Sensor
Fault
Warning • Check the wiring.
• Check and clean the sensor.
• Check the sensor calibration.
• Replace the sensor.
Refrig Liquid Temperature
Sensor Fault
Warning • Check the wiring.
• Check and clean the sensor.
• Check the sensor calibration.
• Replace the sensor.
Condenser Coil De-Ice Active Warning • Monitor the situation.
• Clear the ice and snow if needed.
Filter Access Door Open
Warning
Warning • Close and secure the access door.
• Check the door switch and wiring.
• Replace the door switch if needed.
Filter Access Door Open Alarm Critical • Close and secure access door.
• Check door switch and wiring.
• Replace door switch if needed.
High Head Pressure Critical • Check the outdoor air openings (clear obstructions).
• Check the refrigerant charge.
• Check operation of the outdoor fan.
• Check the condenser coil for obstructions.
• Reset the high pressure switch.
Low Suction Pressure Warning • Check the refrigerant charge.
• Check IT airflow.
• Ensure that air dampers are open.
• Check the condition of the air filters.
• Check the condition of the evaporator coil.
Low Suction Pressure Lockout Critical • Check the refrigerant charge.
• Check the IT airflow.
• Determine the cause of the low suction pressure.
• Reset the controller.
Cap Fault or Motor Overload or
Overspeed
Critical Capacitor pre-charge fault, motor overload or motor
overspeed
Check the Alarm Code at the VFD Display:
CrF = Capacitor pre-charge fault - Reset the drive. Replace
the drive if necessary.
OLF = Compressor overload fault - Check the refrigerant
charge. Replace the compressor if necessary.
SOF = Compressor over speed fault - Check the drive
configuration.
TEMPERATURE/HUMIDITY ALARMS
Return Humidity Sensor Fault Warning • Check the wiring.
• Check and clean the sensor.
• Check the sensor calibration.
• Replace the sensor.
Supply Humidity Sensor Fault Warning • Check the wiring.
• Check and clean the sensor.
• Check the sensor calibration.
• Replace the sensor.
Return Temperature Sensor
Fault
Warning • Check the wiring.
• Check and clean the sensor.
• Check the sensor calibration.
• Replace the sensor.