Manuals / American Power Conversion / Household Appliance / Air Conditioner

American Power Conversion DX Reset Variable Frequency Drive, Reset humidifier, Set up humidifier

Models: DX FM

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Reset Variable Frequency Drive

Reset Variable Frequency Drive

Paths: Main > Setup > Module > Main Module > Module Control > Reset VFD# Main > Setup > Module > Expansion Module 1 > Module Control > Reset VFD#

The Reset VFD option resets the variable frequency drive (VFD). The drive shuts down during a VFD # Fault Tolerance Exceeded alarm. The alarm occurs when the VFD detects three faults within thirty minutes. Use this function to restart the drive manually when the alarm condition is resolved.

Caution: VFD Fault Tolerance Exceeded alarms indicate a problem with the VFD or blowers. Check the event log for other alarms before resetting the VFD.

Reset humidifier

Paths: Main > Setup > Module > Main Module > Module Control > Reset Humidifier Main > Setup > Module > Expansion Module 1 > Module Control > Reset Humidifier

The Reset Humidifier option resets the humidifier. The humidifier shuts down during a Humidifier Fault Tolerance Exceeded alarm. The alarm occurs when the humidifier detects three faults within thirty minutes. Use this function to restart the humidifier manually when the alarm condition is resolved.

Caution: Humidifier Fault Tolerance Exceeded alarms indicate a problem with the humidifier. Check the event log for other humidifier alarms before resetting the humidifier.

Set up humidifier

Paths: Main > Setup > Module > Main Module > Module Control > Set Up Humidifier Main > Setup > Module > Expansion Module 1 > Module Control > Set Up Humidifier

The Set up Humidifier option controls the steam-electrode humidifier mode. Humidifier Model. The steam-electrode humidifier can be set to one of three modes:

•Off—Removes power from the electrodes in the humidifier while the cylinder remains filled.

•Drain—Removes power from the electrodes and drains the cylinder.

•Auto—Applies power to the humidifier and sets the humidifier to operate according to the Module controller.

Note: The steam-electrode humidifier must be in Auto mode to operate.

30	NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting

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American Power Conversion DX, FM manual Reset Variable Frequency Drive, Reset humidifier, Set up humidifier

Contents

Operation, Maintenance, and Troubleshooting 60 HzNetworkAIR FM DX Precision Air Conditioner Page American Power Conversion Legal Disclaimer Page Safety General InformationOperation ContentsMechanical and Refrigeration Inspection Checklist Temperature alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Humidity alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Alarm delay Maintenance Network Management CardTroubleshooting WarrantyPage General Information Modules, Systems, and GroupsModule SystemGroup Safety Symbols Used in this ManualSafety symbols that may be used in this manual Cross-referencesymbols used in this manualSafety Hazards Lockout/tagoutElectrical hazards Static dischargeDisplay Interface OperationFunction Using the Display Interface Scrolling status screensStatus Screen Name Status Information DisplayedMain menu screen Password entryNavigating the interface Change settings Factory default settingsStart the System Stop the SystemCommissioning Power on Power On/Off ProcedurePower off Commissioning Checklists Initial Inspection ChecklistElectrical Inspection Checklist Mechanical and Refrigeration Inspection ChecklistEnsure that Ensure thatMechanical Inspection Air-cooledChecklist User Interface Box Inspection ChecklistEnsure that Ensure thatStart-upInspection Checklist While the equipment is operating, ensure thatEnsure that Final Inspection ChecklistOwner Acceptance System Configuration System optionsPage Up Down System delays Sensor setup Building managementApplicable Settings Settings for fluid-cooledoptionsFluid-CoilType Flow Switch Multi Cndsr Vlv 3-way Valve typesActuator types Coil Fluid 3-wayEconomizer isolation valve optional Econ Isolator Valve EnableEcon Isolator Close Dly Econ Isolator Open Dly Page Contacts and Relays Input contactsDescription/Function Output relays Configure Module Module ConfigurationAlarm detectors Calibrate airflow manually Module ControlCalibrate airflow automatically Reset humidifier Reset Variable Frequency DriveSet up humidifier Control the Environment How the modes workDX 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 Cool Deadband Compressor Allocation Two-ModuleSystemTo set the dehumidify deadband for your System Modes Essential functionsHow to tune the PIDs PID controlsPID Tuning Correction ControlProportional IntegralAlarms Temperature alarmsHumidity alarms Maintenance intervalsAlarm delay Group Group configurationGroup settings ModeRange Share ifSystem failure events Display Password and time-outTemperature and pressure units Date and timeAdjust display How to update the firmwareReset to defaults Product dataNetwork Configuration Network configurationScrolling status screens View Status ReadingsModule status System status Group statusPath Main Status System # Path: Main > Status > GroupView Event Log View logRespond to Alarms Major or minor alarm LEDsView active alarms Clear active alarmsDisplayed Alarm Message Alarm messages and suggested actionsAction Required Action Required Displayed Alarm MessageCondensate Pump Fail Env Temperature Low Displayed Alarm MessageAction Required Action Required Displayed Alarm MessageSystem Options Action Required Displayed Alarm MessageHumidifier Displayed Alarm Message System Config System OptionsAction Required Comm Lost state, or OffAction Required Displayed Alarm MessageSupply Humidity High Action Required Displayed Alarm MessageSystem Comm Lost Quick Configuration Network Management CardTCP/IP configuration methods OverviewBOOTP 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 Control console 1.Choose Network from the Control Console menuAccess a Configured Unit OverviewWeb interface Telnet/SSHSNMP FTP/SCPRecover From a Lost Password Maintenance Monthly Preventive MaintenanceCleanliness EnvironmentMechanical ElectricalMechanical Quarterly Preventive MaintenanceElectrical Functional tests Verify the following modes of operationFull cooling Full reheat Humidification Dehumidification MultiCool EconomizerSemi-AnnualPreventive Maintenance CleanlinessMechanical ElectricalFunctional tests Measure the refrigerant pressuresTroubleshooting ProblemPossible Cause Corrective ActionProblem Possible CauseCorrective Action Compressor fails toProblem Possible CauseCorrective Action Compressor noisyProblem Possible CauseCorrective Action Head pressure tooProblem Possible CauseCorrective Action Suction pressure tooPage Warranty One-YearFactory WarrantyTerms of warranty Non-transferablewarrantyWarranty claims Claims Warranty ProceduresParts Page Page 990-3127 APC Worldwide Customer Support990-3127 10/2007