Liebert AC4 Installation Considerations, Unpacking and Preliminary Inspection, Packing Contents

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Installation

2.0INSTALLATION

2.1Installation Considerations

The AC4 must be installed indoors and may be mounted on the surface of a wall or flush-mounted, depending on the user’s application, the location of equipment to be connected and the type of wall the unit will be mounted on.

The AC4 should be mounted where it can be easily accessed. On-site personnel would access the unit through the LCD on its front cover or the service terminal connected to the RS232 port.

In addition to the communications connections, the site also must have electrical service and must permit connecting the unit’s four digital inputs and four digital outputs.

The wall material must be capable of supporting the weight of the AC4: see 8.0 - Specifications.

NOTE

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

2.1.1Unpacking and Preliminary Inspection

•Before unpacking the AC4, inspect the shipping carton for damage or signs of mishandling, such as gashes or holes in the carton or severely flattened corners.

•Open the shipping crates carefully. Use care to avoid puncturing the container with sharp objects that might damage the contents.

•Inspect the AC4 and all included components for damage.

•If any damage from shipping or mishandling is observed, immediately file a damage claim with the shipping agency and forward a copy to:

Liebert Corporation

1050 Dearborn Drive

P.O. Box 29186

Columbus, OH 43229

Packing Contents

Table 3 Packing manifest

Standard Components

AC4 controller board in enclosure

User Manual

Keys (2) to panel door lock

RS232 Configuration Cable

8

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Contents AC4 MonitoringPage Table of Contents Setup System Setup Common Alarm 7.5 Setup System Setup Zones Appendix a Service Terminal Interface Setup MenuFigures Data Logs Methods of Viewing and Configuring the AC4Available Alarms IntroductionOperation LCD for configurationOutside Enclosure Overview Device RS232 Liebert Himod Typical ConfigurationDevice Liebert Challenger Controller Board Overview Controller board componentsLCD connector Connector RS232DIP switch 24VAC powerOutput LEDs Status LEDs Input LEDs LED IndicatorsLED indicators summary Typical Sequence Packing Contents Installation ConsiderationsInstallation Unpacking and Preliminary InspectionMounting the Panel Surface-Mounting the AC4Required tools Flush-Mounting the AC4 Connect Power to the AC4 Electrical connections to panelWiring specifications Wiring SpecificationsWiring and Connections Connecting Digital Inputs Connecting Digital Inputs and OutputsConnecting Liebert Environmental Units Connecting Digital OutputsSetting the Digital Output Jumpers Connecting Common Alarm OutputsRS232 Connector Digital output jumper settingsOverview of Menus Guide to AC4 functionsLCD Menu Overview Opening Screen OverviewMain Menu Overview View Status Options Clearing Active Alarms View Active AlarmsActive Alarms Active AlarmsAlarm log conditions View Alarm LogAlarm Log Alarm LogEvent log conditions View Event LogEvent Log Event LogViewing Additional Input Data View Input StatusInput Status Digital input statesViewing Additional Output Data View Output StatusOutput Status Digital output statesSilence Alarm & Backup LOG Files Service Terminal Interface Silence Alarm Service Terminal Interface onlyBack Up Log Files Service Terminal Interface only Silence Alarm & Backup Log Files Service Terminal Interface System and Control Options LoginLogin Valid characters for data entrySetup System menu Login ScreenSystem & Control menu Clear Alarms&Logs selected Clear Alarms/Logs menuSetup System Overview Setup System Setup InputsDefine Input as Normally Open or Normally Closed Define Input as Alarmable or EventChange Label Name of Input Delay Time Set Up Alarmable Inputs in Latched or Unlatched ModeSet Up Delay Time Latched / UnlatchedReset Common Alarm Setup System Setup Common AlarmChange to Reset Y or Not Reset N Message if too few devices entered Setup System Setup ZonesSet Up a Zone Message if too many devices enteredSetup System Setup Outputs Define Output as Normally Open or Normally ClosedConfigure Output for Loss of Power Fail-Safe Define Operating or Standby ModeEnable or Disable an Output Device in Alarm Status Set ModeChange the Password Setup System Setup System InfoChange Password Reset Password to the Factory Default AaaaSet Date & Time/Automatic Daylight Saving Time Setup Site IDSetup Site ID Set Date & TimeBackup and Upload Configuration File Back Up the Configuration File Upload the Configuration File Firmware Update Service Terminal Interface only Factory DefaultsFactory Defaults System and Control Options Setup Operation Menu Setup OperationSelect Setup Operation Setup System Menu Default settings operation featuresSet Interval & Start Time 1- to 99-Day Interval Turn Automatic Sequencing On or OffActivate / Deactivate Set Start Time Hour IntervalSpecify Failed Standby Response Turn Standby Testing On or OffChange Standby Testing Failed Standby responseSetup Operation Menu Specify Hold Delay TimeHold Delay Time Restart Delay TimeOverride Output Clear the Alarm Log Clear Alarms & LogsClear Active Alarms Clear the Event LogAC4 Specifications SpecificationsAppendix a Service Terminal Interface Comparison of Functions LCD and Service Terminal InterfaceConnecting to the Service Terminal Interface Specify COM Port Connection COM1 Port SetupCreate a Connection Settings tab Properties SetupAscii Setup Ascii Setup buttonConnect to the Service Terminal Interface Click on the file name for example, AC4.htView Status Overview Silence Alarm and Backup Log FilesSetup Menu Overview Main Menu For sample screens, seeMain Menu View Status MenusMain Menu View Active Alarms View Active AlarmsView Alarm Log View Alarm LogView Event Log View Event LogView Input Status View Input StatusView Output Status View Output StatusSilence Alarm Section A.5.1 Section A.5.2Backup Log Files Event Log File Back Up Alarm Log FileBackup Log Files Alarm Log File Back Up Event Log FileLogin Setup MenuLogin Menu Tips on Using the Service Terminal Interface Setup MenuSetup Menu See DescriptionSetup Inputs Setup InputsSetup Common Alarm Setup Common AlarmSetup Zones Setup ZonesSetup Outputs Setup OutputsChange Password Setup System InfoSetup System Info Setup Site ID Set Date & TimeBackup & Upload Configuration File Backup Backup & Upload Configuration File Upload Factory DefaultsFirmware Update Service Terminal Interface only Firmware UpdateAuto Sequencing Setup OperationSetup Operation Auto Sequencing Standby Testing Setup Operation Standby TestingSetup Operation Hold Delay Hold DelaySetup Operation Failed Standby Failed StandbyRestart Delay Setup Operation Restart DelayOverride Output Override OutputClear Alarms & Logs Clear the Alarm Log Clear Alarms & LogsClear Alarms & Logs Clear Active Alarms Clear Alarms & Logs Clear the Event Log Page Locations Technical Support/ServiceCompany Behind the Products Asia 23F, Allied Kajima Bldg
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AC4 specifications

The Liebert AC4 is a highly advanced cooling solution designed for critical environments, such as data centers and telecommunications facilities. As data demands rise and IT equipment generates significant heat, an effective cooling system is paramount to maintaining optimal performance and reliability. The Liebert AC4 stands out in this space, offering a blend of efficiency, flexibility, and innovative technology.

One of the main features of the Liebert AC4 is its adaptability to various configurations and applications. It can be deployed in both hot aisle and cold aisle containment setups, making it versatile for different data center designs. This flexibility allows facilities to implement cooling strategies that align perfectly with their specific layouts and operational requirements.

The Liebert AC4 employs cutting-edge, variable-speed fans that enhance energy efficiency. These fans adjust their speed according to the cooling load, ensuring that the system operates at peak efficiency while significantly reducing energy consumption. This feature is essential in critical environments, where minimizing operational costs is often as important as maintaining optimal temperatures.

In addition to energy-efficient cooling, the Liebert AC4 integrates advanced monitoring and control technologies. With built-in intelligence and compatibility with the Liebert SiteScan monitoring system, users can ensure real-time visibility into their cooling operations. This monitoring capability enables data center managers to make informed decisions and swiftly address any cooling anomalies, minimizing the risk of overheating and downtime.

Furthermore, the system is designed to be easy to install and maintain, reducing downtime during setup and upkeep. The modular design allows for scalability, enabling organizations to expand their cooling capabilities as their needs grow.

The Liebert AC4 also features a robust construction that enhances reliability and durability, making it an ideal choice for environments where equipment uptime is critical. Its streamlined design not only optimizes airflow and cooling distribution but also contributes to aesthetic considerations in professional settings.

In conclusion, the Liebert AC4 combines efficiency, versatility, and advanced technologies to deliver a reliable cooling solution for modern data centers and critical facilities. Its variable-speed fans, flexible configurations, and advanced monitoring capabilities position it as a leader in the competitive field of cooling solutions, ensuring that critical equipment remains operational and efficient. Organizations looking to enhance their cooling strategies will find the Liebert AC4 to be an invaluable asset in today’s fast-paced digital landscape.
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