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American Power Conversion FM, DX manual Setpoints

Models: DX FM

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Setpoints

Setpoints

Path: Main > Control Environment > Setpoints

Cool: 72.0°F

Reheat: 68.0°F

Dehumid: 55.0%RH

Humidify: 45.0%RH

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Setpoints are the target values each mode will maintain in the room. The default setpoints are appropriate for most precision cooling applications.

The setpoint for each mode must be within the following ranges:

•Cool: 16.5–32.2°C (61.8–90.0°F )

•Reheat: 15.6–31.2°C (60.0–88.2°F)

•Dehumidify: 30–80% Relative Humidity

•Humidify: 30–80% Relative Humidity

See “Modes” on page 37 to enable or disable operating modes. If a mode is disabled and you change the setpoint, the display will warn you that the mode is disabled.

Note: You cannot overlap setpoints. If you overlap setpoints, the display interface warns you and resets the setpoints.

The Cool setpoint must be 1°C (1.8°F) above the Reheat setpoint if reheat is installed in the Module. The Dehum setpoint must be 1% Relative Humidity (RH) above the Humidify setpoint if a humidifier is installed.

NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting

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American Power Conversion FM, DX manual Setpoints

Contents

Operation, Maintenance, and Troubleshooting 60 HzNetworkAIR FM DX Precision Air Conditioner Page American Power Conversion Legal Disclaimer Page Contents SafetyGeneral Information OperationMechanical and Refrigeration Inspection Checklist Temperature alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Humidity alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Alarm delay Network Management Card MaintenanceWarranty TroubleshootingPage System General InformationModules, Systems, and Groups ModuleGroup Cross-referencesymbols used in this manual SafetySymbols Used in this Manual Safety symbols that may be used in this manualStatic discharge Safety HazardsLockout/tagout Electrical hazardsDisplay Interface OperationFunction Status Information Displayed Using the Display InterfaceScrolling status screens Status Screen NameMain menu screen Password entryNavigating the interface Stop the System Change settingsFactory default settings Start the SystemCommissioning Power on Power On/Off ProcedurePower off Initial Inspection Checklist Commissioning ChecklistsEnsure that Electrical Inspection ChecklistMechanical and Refrigeration Inspection Checklist Ensure thatEnsure that Mechanical Inspection Air-cooledChecklistUser Interface Box Inspection Checklist Ensure thatWhile the equipment is operating, ensure that Start-upInspection ChecklistEnsure that Final Inspection ChecklistOwner Acceptance System options System ConfigurationPage Up Down System delays Building management Sensor setupApplicable Settings Settings for fluid-cooledoptionsFluid-CoilType Coil Fluid 3-way Flow Switch Multi Cndsr Vlv 3-wayValve types Actuator typesEconomizer isolation valve optional Econ Isolator Valve EnableEcon Isolator Close Dly Econ Isolator Open Dly Page Input contacts Contacts and RelaysDescription/Function Output relays Configure Module Module ConfigurationAlarm detectors Calibrate airflow manually Module ControlCalibrate airflow automatically Reset humidifier Reset Variable Frequency DriveSet up humidifier How the modes work Control the EnvironmentDX Dehumidify. Similar to DX cooling, the output for dehumidification is determined by the difference between the setpoint and the average return humidity from each of the Modules in the System if more than one Module is present. The deadband is used to engage both compressors incrementally with increasing demand. Each Module in the System is assigned an equal division of the deadband a percentage of relative humidity. Both compressors in a Module are engaged when the assigned division of the deadband above the setpoint is reached. If the average return humidity reaches the setpoint plus the entire deadband, all of the compressors will be engaged until the humidity drops below the setpoint plus the deadband. Unlike DX cooling, the compressors in each Module are normally set to work as a single unit instead of separately. The use of one or two compressors per Module is based on the Dehum. Capacity setting Path Main Menu Setup System # System Config System Options Setpoints Deadbands Two-ModuleSystem Cool Deadband Compressor AllocationTo set the dehumidify deadband for your System Essential functions ModesPID controls How to tune the PIDsIntegral PID Tuning CorrectionControl ProportionalMaintenance intervals AlarmsTemperature alarms Humidity alarmsAlarm delay Group configuration GroupShare if Group settingsMode RangeSystem failure events Temperature and pressure units DisplayPassword and time-out Date and timeHow to update the firmware Adjust displayProduct data Reset to defaultsNetwork configuration Network ConfigurationScrolling status screens View Status ReadingsModule status Path: Main > Status > Group System statusGroup status Path Main Status System #View log View Event LogClear active alarms Respond to AlarmsMajor or minor alarm LEDs View active alarmsDisplayed Alarm Message Alarm messages and suggested actionsAction Required Action Required Displayed Alarm MessageCondensate Pump Fail Action Required Displayed Alarm MessageEnv Temperature Low Action Required Displayed Alarm MessageSystem Options Action Required Displayed Alarm MessageHumidifier Comm Lost state, or Off Displayed Alarm MessageSystem Config System Options Action RequiredAction Required Displayed Alarm MessageSupply Humidity High Action Required Displayed Alarm MessageSystem Comm Lost Overview Quick ConfigurationNetwork Management Card TCP/IP configuration methodsBOOTP and DHCP configuration APC Device IP Configuration WizardPath Setup System Network Config A Vendor Class Identifier APC by default Remote access to the control console 1.Choose Network from the Control Console menu Control consoleTelnet/SSH Access a Configured UnitOverview Web interfaceFTP/SCP SNMPRecover From a Lost Password Environment MaintenanceMonthly Preventive Maintenance CleanlinessElectrical MechanicalMechanical Quarterly Preventive MaintenanceElectrical Dehumidification MultiCool Economizer Functional testsVerify the following modes of operation Full cooling Full reheat HumidificationElectrical Semi-AnnualPreventive MaintenanceCleanliness MechanicalMeasure the refrigerant pressures Functional testsCorrective Action TroubleshootingProblem Possible CauseCompressor fails to ProblemPossible Cause Corrective ActionCompressor noisy ProblemPossible Cause Corrective ActionHead pressure too ProblemPossible Cause Corrective ActionSuction pressure too ProblemPossible Cause Corrective ActionPage Non-transferablewarranty WarrantyOne-YearFactory Warranty Terms of warrantyWarranty claims Claims Warranty ProceduresParts Page Page 10/2007 990-3127APC Worldwide Customer Support 990-3127