APC ACECFR20200SE4 Installation Manual download pdf (Page 46)

EcoBreeze System Operation and Maintenance40

Module alarms

• “COMPRESSOR ALARMS” on page 40

• “ELECTRONIC EXPANSION VALVE (EEV) ALARMS” on page 40

• “FAN ALARMS” on page 41

• “POWER ALARMS” on page 41

• “REFRIGERATION SYSTEM ALARMS” on page 41

• “TEMPERATURE/HUMIDITY ALARMS” on page 42

• “WATER SYSTEM ALARMS” on page 43

• “VARIABLE FREQUENCY DRIVE (VFD) ALARMS” on page 43

Name Severity Alarm Actions

COMPRESSOR ALARMS

Compressor Start Failed Critical • Check the power supply.

• Check the wiring and connections.

• Check the motor protection device.

• Check the temperature of the compressor.

• Check the refrigerant charge.

• Check expansion valve.

• Check the drive configuration.

• Replace the compressor if necessary.

Compressor Overcurrent Fault Critical • Check the refrigerant charge.

• Check the power supply.

• Check the wiring and connections.

• Check the motor protection device.

• Check the temperature of the compressor

• Replace the compressor if necessary.

Compressor Impending Short-

circuit Fault

Warning • Check the compressor wiring.

• Replace the compressor if necessary.

Compressor Short to Earth Critical • Check the compressor wiring.

• Replace the compressor if necessary.

Compressor Phase to Phase

Short

Critical • Check the compressor wiring.

• Replace the compressor if necessary.

ELECTRONIC EXPANSION VALVE (EEV) ALARMS

EEV Communication Fault Critical Check the communications cabling and power to the device.

Low Superheat Warning • Check the suction pressure transducer reading.

• Check the suction temperature sensor reading.

• Check operation of the EEV.

• Check the refrigerant charge.

High Superheat Warning • Check the suction pressure transducer reading.

• Check the suction temperature sensor reading.

• Check operation of the EEV.

• Check the refrigerant charge.

EEV Pressure Sensor Fault Critical • Check the suction pressure transducer reading.

• Check the suction temperature sensor reading.

• Check operation of the EEV.

• Replace the sensor.

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