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American Power Conversion FM, DX manual Semi-AnnualPreventive Maintenance, Cleanliness, Mechanical

Models: DX FM

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Semi-Annual Preventive Maintenance

*Perform all the Monthly/Quarterly Preventive Maintenance items and the items below. Prepared by: _________________________________

Model Number: ______________________________

Serial Number: _______________________________

Date: _________________

Cleanliness

Check the cleanliness of the evaporator coil. Clean if required.

Mechanical

Check the glycol concentrate of the glycol loop (glycol modules only).

•Glycol % ____________________________

•Water % ____________________________

Electrical

Verify contactor and relay operation integrity.

Check the main power wiring for the following components:

•Reheat elements

•Evaporator and condenser motors

•Compressors

•Humidifiers

•Glycol pumps

NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting

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American Power Conversion FM, DX manual Semi-AnnualPreventive Maintenance, Cleanliness, Mechanical, Electrical

Contents

NetworkAIR FM DX Precision Air Conditioner 60 HzOperation, Maintenance, and Troubleshooting 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 hazardsFunction OperationDisplay Interface Status Information Displayed Using the Display InterfaceScrolling status screens Status Screen NameNavigating the interface Password entryMain menu screen Stop the System Change settingsFactory default settings Start the SystemCommissioning Power off Power On/Off ProcedurePower on 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 ChecklistOwner Acceptance Final Inspection ChecklistEnsure that System options System ConfigurationPage Up Down System delays Building management Sensor setupFluid-CoilType Settings for fluid-cooledoptionsApplicable Settings Coil Fluid 3-way Flow Switch Multi Cndsr Vlv 3-wayValve types Actuator typesEcon Isolator Close Dly Econ Isolator Open Dly Econ Isolator Valve EnableEconomizer isolation valve optional Page Input contacts Contacts and RelaysDescription/Function Output relays Alarm detectors Module ConfigurationConfigure Module Calibrate airflow automatically Module ControlCalibrate airflow manually Set up humidifier Reset Variable Frequency DriveReset 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 ConfigurationModule status View Status ReadingsScrolling status screens 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 alarmsAction Required Alarm messages and suggested actionsDisplayed Alarm Message Condensate Pump Fail Displayed Alarm MessageAction Required Env Temperature Low Displayed Alarm MessageAction Required System Options Displayed Alarm MessageAction Required Humidifier Displayed Alarm MessageAction Required Comm Lost state, or Off Displayed Alarm MessageSystem Config System Options Action RequiredSupply Humidity High Displayed Alarm MessageAction Required System Comm Lost Displayed Alarm MessageAction Required Overview Quick ConfigurationNetwork Management Card TCP/IP configuration methodsPath Setup System Network Config APC Device IP Configuration WizardBOOTP and DHCP configuration 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 MechanicalElectrical Quarterly Preventive MaintenanceMechanical 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 Parts Warranty ProceduresClaims Page Page 10/2007 990-3127APC Worldwide Customer Support 990-3127