American Power Conversion FM, DX manual Cool Deadband Compressor Allocation

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The following graphic is an example of a two-Module System (with four compressors). The setpoint is 21.1°C (70°F) and the deadband is 2.2°C (4°F). Each compressor engages as the return air temperature reaches its assigned segment of the deadband above the setpoint. When the return air temperature drops back below the temperature assigned to a compressor, that compressor disengages.

Cool Deadband Compressor Allocation

Two-Module System

Compressor

Compressor

Compressor

Compressor

# 1

# 2

# 3

# 4

21°

21.6°

22.2°

22.7°

23.3°

(70°)

(71°)

(72°)

(73°)

(74°)

Return air temperature

na0437a

Caution: If the deadband setting is too narrow, it will cause the System to engage the compressors in response to a small temperature change. Since the compressors must run for a minimum period to avoid damage, this could over-cool the room.

Caution: If the deadband setting is too wide, the System will not engage all of its cooling capacity until the return air temperature is significantly above the setpoint.

NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting

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Contents Operation, Maintenance, and Troubleshooting Page American Power Conversion Legal Disclaimer Page Contents Commissioning Checklists Alarms Network Management Card Troubleshooting Warranty Page Modules, Systems, and Groups ModuleSystem Group Symbols Used in this Manual Safety symbols that may be used in this manualCross-reference symbols used in this manual Lockout/tagout Electrical hazards Safety HazardsStatic discharge Safe refrigerant handling Moving parts Tools and partsDisplay Interface OperationUsing the Display Interface Scrolling status screensStatus Screen Name Status Information Displayed Password entry Main menu screenNavigating the interface Factory default settings Change settingsStart the System Stop the SystemCommissioning Power On/Off Procedure Power onPower off Initial Inspection Checklist Commissioning ChecklistsElectrical Inspection Checklist Mechanical and Refrigeration Inspection ChecklistEnsure that User Interface Box Inspection Checklist Mechanical Inspection Air-cooled ChecklistWhile the equipment is operating, ensure that Start-up Inspection ChecklistOwner Acceptance Final Inspection ChecklistSystem options System ConfigurationPage Page System delays Building management Sensor setupFluid-Coil Type Applicable Settings Settings for fluid-cooled optionsActuator types Valve typesEconomizer isolation valve optional Coil fluid temperature activation threshold and deadband Input contacts Contacts and RelaysMap Description/Function Output relays Module Configuration Configure ModuleAlarm detectors Module Control Calibrate airflow manuallyCalibrate airflow automatically Reset Variable Frequency Drive Reset humidifierSet up humidifier How the modes work Control the EnvironmentPage Setpoints Deadbands Cool Deadband Compressor Allocation Return air relative humidity Essential functions ModesPID controls How to tune the PIDsLoop Behavior PID Tuning Correction Control Proportional Integral Derivative MethodHumidification sensitivity Temperature alarms AlarmsHumidity alarms Maintenance intervalsAlarm delay Group Group configurationMode Range Share if Group settingsSystem failure events Temperature and pressure units Password and time-outDisplay Date and timeHow to update the firmware Adjust displayProduct data Reset to defaultsNetwork configuration Network ConfigurationModule status View Status ReadingsGroup status System statusView log View Event LogRespond to Alarms Displayed Alarm Message Action Required Alarm messages and suggested actionsDisplayed Alarm Message Action Required Path Main Setup System # System Config Valve Types Check that the # Systems setting Path Main Setup Group Group Module Module Alarm Occurred in Module Control Reset Comm Lost state, or Off Displayed Alarm Message Action Required Displayed Alarm Message Action Required Quick Configuration TCP/IP configuration methodsOverview Bootp and Dhcp configuration APC Device IP Configuration WizardOption 43 = 01 04 31 41 50 43 where Remote access to the control console Choose Network from the Control Console menu Control consoleAccess a Configured Unit Web interfaceTelnet/SSH Snmp Recover From a Lost Password Monthly Preventive Maintenance CleanlinessEnvironment Electrical Mechanical Record the amperages for the following components Quarterly Preventive MaintenanceFunctional tests Semi-Annual Preventive Maintenance  Measure the refrigerant pressures Problem Possible Cause Corrective Action TroubleshootingProblem Possible Cause Corrective Action Problem Possible Cause Corrective Action Problem Possible Cause Corrective Action Problem Possible Cause Corrective Action Page One-Year Factory Warranty Terms of warrantyNon-transferable warranty Exclusions Warranty claims Warranty Procedures ClaimsParts Page Page 10/2007 990-3127

DX, FM specifications

The American Power Conversion (APC) DX,FM series represents a cutting-edge solution designed for critical power management and uninterruptible power supply (UPS) applications. Aimed at businesses and data centers that require robust power protection, this series balances high-performance capabilities with advanced technology features.

One of the key distinguishing features of the DX,FM series is its modular design. This allows users to scale their UPS system according to their needs, making it suitable for a variety of environments. Whether you're managing a small server room or a large data center, the modular architecture ensures that you can add or remove capacity with ease. This flexibility not only optimizes initial investments but also supports future growth seamlessly.

The series employs advanced battery technology, which extends battery life and enhances overall performance. With intelligent battery management systems, the DX,FM ensures that battery health is monitored in real-time, preventing premature failures and unnecessary replacements. This leads to reduced maintenance costs and maximizes uptime.

Additionally, the DX,FM series features innovative cooling solutions that enhance performance in high-density situations. Efficient thermal management reduces the risk of overheating, keeping valuable equipment operating optimally. This is particularly crucial in data centers where heat generated by servers can create potential disruptions.

Another significant characteristic of the DX,FM series is its sophisticated monitoring and management capabilities. Integrated with state-of-the-art software, users can gain remote access to their UPS units, enabling real-time tracking of performance metrics. This remote monitoring capability allows administrators to proactively manage power usage and ensure that systems are operating within safe parameters.

Furthermore, the DX,FM series is designed with a high level of redundancy. This built-in reliability feature ensures that if one unit fails, others can seamlessly take over, maintaining power supply continuity. This is critical for mission-critical environments where power outages could result in substantial financial losses or data loss.

In summary, the American Power Conversion DX,FM series incorporates modularity, advanced battery technology, effective cooling solutions, and sophisticated monitoring features to deliver an ideal power management solution for various organizations. Its design prioritizes flexibility, reliability, and efficiency, making it an essential investment for any business looking to safeguard its operations against power disruptions.
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