Liebert XDC user manual Alarm Time Delay, COM Alarm Enable, Custom Alarms

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Microprocessor Control

5.3.13ALARM TIME DELAY

Some alarms can be programmed with a time delay as a means of preventing nuisance alarms. This function specifies the amount of time an alarm must be present before the Liebert XDC recognizes and annunciates the alarm. If the alarm condition goes away before the time delay has expired, the alarm will not be recognized, and the time delay timer will be reset. This can be used as a filter to pre- vent nuisance alarms from transient events.

Time delays for these alarms may be changed:

CUSTOMER—customer alarm

HI RMT TEMP—high remote temperature alarm

LO RMT TEMP—low remote temperature alarm

HI LCL TEMP—high local temperature alarm

LO LCL TEMP—low local temperature alarm

LO REFRIG T—low refrigerant temperature alarm

To view the time delay for an alarm:

1.Press the MENU key.

2.Use the up and down arrow keys to move to the ALARM TIME DELAY menu. Press the ENTER key to enter into the menu. Use the up and down arrow keys to move through the menu and view the alarm time delays.

To change the time delay for an alarm:

1.Press the ENTER key. (The control will ask for a service password if passwords are enabled. Use the up and down arrow keys and ENTER key to enter the three-digit password when prompted.)

2.Press the ENTER key again on the alarm to select the alarm to be changed.

3.Use the up and down arrow keys to change the alarm time delay.

4.Press the ENTER key to record the change.

5.Press the ESC key two to three times to return to the main display.

5.3.14COM ALARM ENABLE

Each individual alarm can be selected to energize or not to energize the common alarm relay. If the energize common alarm function is set to YES, the relay is energized immediately as the alarm is annunciated and de-energized when the alarm condition goes away (only after the alarm has been recognized). If the alarm is completely DISABLED, the alarm has no effect on the common alarm relay.

Use the up or down arrow key to scroll to a particular alarm, press the ENTER button to select it, then press the ENTER button to change the state (Yes or No).

5.3.15CUSTOM ALARMS

This is the menu where the user selects the alarm message that will be displayed when there is an input to the customer alarm input on the control board. This menu has four choices: one user-defined custom message (see CUSTOM TEXT below for details) and three preprogrammed messages:

•SMOKE DETECTED

•CUSTOM 1 (default custom message. If the user enters a custom text message, that custom text will replace CUSTOM 1.)

•STANDBY UNIT ON

1.Press the ENTER button to access the menu

2.Use the up or down arrow key to view the messages.

3.Press the ENTER button to select the message to be displayed.

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Contents Liebert XDC Example XDC160AA General Safety GuidelinesVoltage-phase-frequency Density system = 380/415-3ph-50Hz Table of Contents Alarm Descriptions and Solutions SpecificationsFigures Tables Equipment Handling General Product InformationEquipment Inspection Product DescriptionHandling With Skid Removal of SkidRemove tie-down brackets Removing Piano Jacks Liebert XDC dimensions, weightMechanical Considerations Positioning the Liebert XDCPiping locations Liebert XDC piping connection sizesPlacing the Liebert XDC on a Floor Stand Detail a Liebert XDC water/glycol piping connection SizesTOP View of Floor Stand Dimensions and clearances for Liebert XDC on floor stand Positioning the Liebert XDC with Floor StandConnecting High-Voltage Cables High Voltage ConnectionsElectrical enclosure knockout locations for field wiring Contactors Extra Low Voltage Connections Liebert XDC heat rejection connection pointsField Connections-Air Cooled Units only Field Connections-All UnitsField Connections-Optional for All Units Extra Low Voltage field connections points Liebert XDC Interconnection With Liebert XD Cooling Module European Union Fluorinated Greenhouse Gas RequirementsRecommended Pipe Size Supply, return pipe sizes for Liebert XD refrigerant loopPiping Mains Piping Installation MethodPiping Installation-R-134a Pumped Circuit Required Number Bypass Flow ControllersBypass flow controllers for a Liebert XDC-based system Liebert XDP Liebert XDC Evacuation and Leak Check-R-134a Pumped CircuitInsulation Filling the Pumped Circuit-R-134a System refrigerant charge for the supply and return mainsWorksheet to calculate refrigerant charge Calculating Refrigerant Charge-ExampleCalculating refrigerant charge-example Install Double Discharge Risers Double discharge riser layoutPage Installation data-Lee-Temp, one-circuit, four-fan model See for details on piping connections Piping Schematic General arrangement air cooled Liebert XDC Lee-Temp Control Recommended refrigerant line sizes, DX R-407c, OD copperRecommended refrigerant line sizes for DCSL616 For mounting instructions, refer to Figure Lee-Temp Piping Lee-Temp Control Materials SuppliedOutdoor air condenser charge-R-407c Filling the Direct Expansion DX Circuit-R-407cIndoor unit refrigerant charge-R-407c Indoor water/glycol cooled module R-407C refrigerant chargeInstallation Checklist Indicator Lights Description Green Red Checklist for Liebert XDC StartupLiebert XDC pump light indicator Compressor Type 407c Compressor oil typesRefrigerant Type Liebert XDC system is now ready to be turned on Display Feature OverviewMicroprocessor Control User interface keypad functionsControls Feature OverviewViewing or Changing Settings Main MenuMIN Temp SP Setpoint functions, default values and allowable rangesSetpoints HI AIR TempStatus Active AlarmsAlarm History TimeDegrees Setup OperationRestart Pump Start TDLead Tandem Pump OFF TDLead Pump DipswchSetpt Password Setup PasswordAlarm Enable Calibrate SensorsCustom Alarms Alarm Time DelayCOM Alarm Enable Diagnostics Custom TextAlarm Descriptions Alarm Descriptions and SolutionsRed and Green Lamp Indicators View Active Alarms Enable / Disable AlarmsAlarm Time Delays View Alarm History System Shutdown CausesTroubleshooting Liebert XDC troubleshootingToo warm Air Cooled Condenser MaintenanceFluorinated Greenhouse Gas Requirements Water/Glycol Floor Stand Condenser Testing the Water Regulating Valve FunctionGlycol Solution Maintenance Shell and Tube CondensersSpecifications Liebert XDC specificationsPiping Connections Performance DataHeat Rejection Equipment Performance Data204 Page Ti n Ne tIti That
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