APC ACECFR20200SE4 Installation Manual download pdf (Page 47)

41EcoBreeze System Operation and Maintenance

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

• Check the suction temperature sensor reading.

• Check operation of the EEV.

• Replace the sensor.

EEV Motor Fault Critical • Check operation of the EEV.

• Check the wiring and connections.

• Replace the valve or motor if necessary.

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

FAN ALARMS

IT Fan Access Door Open

Warning

Warning • Close and secure the access door .

• Check the door switch and wiring.

• Replace the door switch if needed.

IT Fan Access Door Open

Alarm

Critical • Close and secure the access door.

• Check the door switch and wiring.

• Replace the door switch if needed.

IT Fan #1 Fault Critical • Check the wiring.

• Check the fan power supply.

• Check that the fan is configured properly.

• Ensure that the fan spins freely by hand.

• Replace the fan.

IT Fan #2 Fault Critical • Check the wiring.

• Check the fan power supply.

• Check that the fan is configured properly.

• Ensure that the fan spins freely by hand.

• Replace the fan.

OA Fan Fault Critical • Check the wiring.

• Check the fan power supply.

• Check that the fan is configured properly.

• Ensure that the fan spins freely by hand.

• Replace the fan.

IT Fan #1 Communication Fault Critical Check the communications cabling and power to the device.

IT Fan #2 Communication Fault Critical Check the communications cabling and power to the device.

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

POWER ALARMS

Mains Overvoltage Warning Correct incoming power.

Mains Undervoltage Warning Correct incoming power.

Mains Phase Loss Critical Correct incoming power.

REFRIGERATION SYSTEM ALARMS

Filter Differential Pressure

Sensor Fault

Warning • Check the wiring.

• Ensure that the sensor tubing is connected properly and the

tubing is not damaged.

• Check the sensor calibration.

• Replace the sensor.

Discharge Pressure Sensor

Fault

Critical • Check the wiring.

• Check the sensor calibration.

• Check that the sensor and cable are not damaged.

• Verify the refrigerant pressure at the sensor location.

• Replace the sensor.

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APC ACECFR20200SE4 Installation Manual Page 47

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