Schneider Electric ACRC502, ACRC500 Configure Unit General Role Override Auto and that cooling

Alarm Message	Severity	Action Required
External Communication Fault	Critical	• A hardware failure exists.
		• For assistance, contact Customer Support.
Fan #n Fault	Warning	• A hardware failure exists.
		• For assistance, contact Customer Support.
Fan #n Run Hours Violation	Warning	• At the display interface, reset the Fans run hours in the View Run
		Hours screen after the appropriate maintenance for the device has
		been performed.
Filter Sensor Fault	Warning	• A hardware failure exists.
		• For assistance, contact Customer Support.
Fluid Calibration Active	Critical	• The cooling unit is in fluid calibration mode. See “Fluid Calibration
		Mode:” on page 17 for more information.
Fluid Flowmeter Comm Fault	Warning	• Make sure the sensor is connected properly.
		• If the problem persists, contact Customer Service.
Fluid Flowmeter Fault	Critical	• If a leak exists, fix the problem.
		• Make sure the supply and return chilled water pipes are connected
		properly, fluid is flowing from the chiller to the unit, and the electrical
		connections to the flowmeter are correct.
		• If the problem persists, contact Customer Support.
Group Communication Lost	Warning	• Make sure the number of cooling units in the group is configured
		properly, and the A-Link connections between cooling units are correct.
		• Make sure the system is receiving power and is connected properly.
		• If the problem persists, contact Customer Support.
Internal Communication Fault	Critical	• A hardware failure exists.
		• For assistance, contact Customer Support.
Leaving Fluid Temperature	Warning	• Make sure the sensor is connected properly.
Sensor Fault		• If the problem persists, contact Customer Support.
No Backup Units Available	Warning	• Check to make sure cooling units in the group are set to
		Configure Unit > General > Role Override > Auto and that cooling
		units are available (not in a failed state).
		• For assistance, contact Customer Support.
On Standby: Input Contact	Warning	• At the display interface, make sure the Input Normal State is defined
Fault		correctly in the Set Unit Threshlds screen.
		• Clear the problem that caused the input contact switch to change from
		its normal state.
		• If the problem persists, contact Customer Support.
Power Supply Feed A Fault	Warning	• Make sure the power source is connected properly and the power is
		on.
		• If the problem persists, contact Customer Support.
Rack Inlet #n High	Critical	• Make sure the temperature sensor is connected and placed properly.
Temperature Violation		• Make sure the Rack Inlet threshold is set correctly in the Set Unit
		Threshlds screen.
		• If the problem persists, contact Customer Support.
Rack Inlet #n Temperature	Critical	• Make sure the sensors are connected properly.
Sensor Fault		• If the problem persists, replace the sensor, or contact Customer
		Support.
Return Air High Temperature	Warning	• Make sure the Return Air threshold is set correctly in the Set Unit
Violation		Threshlds screen.
		• If the problem persists, contact Customer Support.
Return Air Sensor Fault	Critical	• Make sure the sensor is connected properly.
		• Replace the sensor.
		• If the problem persists, contact Customer Support.

28 InRow RC Operation and Maintenance Manual