Liebert user manual Flush-Mounting the AC4

Page 16

Installation

2.3Flush-Mounting the AC4

NOTE

Removing the conduit knockouts before mounting the AC4 on the wall will ease installation and prevent strain on the mounting hardware and wall. It is imperative to remove the knockouts if the unit is to be flush-mounted.

The rectangular access doors on the top and bottom of the AC4 must be reversed so they slide the opposite direction. Leaving the doors as shipped from the factory prevents them from being opened when the panel is flush mounted in a wall.

The AC4 may be flush mounted according to company practices—either with screws through the sides of the panel into wall supports or with hanging hardware that attaches to the back of the panel. After determining how and where to place the unit, check to ensure that you have all the hardware required to install the panel in the wall. Obtain the needed tools.

Required tools

• Saw

• Electric drill

• Screwdriver

• Marker to denote layout of the hole to accommodate the AC4

• Trim ring and associated hardware

• Mounting hardware

2.3.1 Mounting the Panel

! CAUTION

Check building plans and other relevant documents to determine whether mounting the AC4 at the selected location might cause cutting or otherwise damaging electrical or communication wiring or pipes.

1.Mark the wall for the cutout to accommodate the panel, using the back of the unit as a template.

2.Drill a pilot hole for the saw blade, if required.

3.Use the saw to cut out the marked section of the wall (if not new construction).

4.Rest the AC4 in the wall and mark where mounting screws will be inserted into the wall studs or other support member.

5.Remove the panel and drill the holes for the mounting screws or wall anchors. Clean up the debris.

6.Reverse the slide direction of the rectangular access doors on the top and bottom of the AC4. Leaving the doors as shipped from the factory prevents them from being opened when the panel is flush mounted in a wall.

7.Attach any field-supplied mounting hardware.

8.Reinsert the assembly into the wall.

9.Insert and tighten the screws or wall anchors.

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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 Methods of Viewing and Configuring the AC4 Available AlarmsData Logs IntroductionOutside Enclosure Overview LCD for configurationOperation Device Liebert Challenger Typical ConfigurationDevice RS232 Liebert Himod Controller Board Overview Controller board componentsConnector RS232 DIP switchLCD connector 24VAC powerLED indicators summary LED IndicatorsOutput LEDs Status LEDs Input LEDs Typical Sequence Installation Considerations InstallationPacking Contents Unpacking and Preliminary InspectionRequired tools Surface-Mounting the AC4Mounting the Panel Flush-Mounting the AC4 Connect Power to the AC4 Electrical connections to panelWiring and Connections Wiring SpecificationsWiring specifications Connecting Digital Inputs and Outputs Connecting Liebert Environmental UnitsConnecting Digital Inputs Connecting Digital OutputsConnecting Common Alarm Outputs RS232 ConnectorSetting the Digital Output Jumpers Digital output jumper settingsOverview of Menus Guide to AC4 functionsMain Menu Overview Opening Screen OverviewLCD Menu Overview View Status Options View Active Alarms Active AlarmsClearing Active Alarms Active AlarmsView Alarm Log Alarm LogAlarm log conditions Alarm LogView Event Log Event LogEvent log conditions Event LogView Input Status Input StatusViewing Additional Input Data Digital input statesView Output Status Output StatusViewing Additional Output Data 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 Login LoginSystem and Control Options Valid characters for data entryLogin Screen System & Control menu Clear Alarms&Logs selectedSetup System menu Clear Alarms/Logs menuSetup System Overview Setup System Setup InputsChange Label Name of Input Define Input as Alarmable or EventDefine Input as Normally Open or Normally Closed Set Up Alarmable Inputs in Latched or Unlatched Mode Set Up Delay TimeDelay Time Latched / UnlatchedChange to Reset Y or Not Reset N Setup System Setup Common AlarmReset Common Alarm Setup System Setup Zones Set Up a ZoneMessage if too few devices entered Message if too many devices enteredSetup System Setup Outputs Define Output as Normally Open or Normally ClosedDefine Operating or Standby Mode Enable or Disable an Output Device in Alarm StatusConfigure Output for Loss of Power Fail-Safe Set ModeSetup System Setup System Info Change PasswordChange the Password Reset Password to the Factory Default AaaaSetup Site ID Setup Site IDSet Date & Time/Automatic Daylight Saving Time Set Date & TimeBackup and Upload Configuration File Back Up the Configuration File Upload the Configuration File Factory Defaults Factory DefaultsFirmware Update Service Terminal Interface only System and Control Options Setup Operation Select Setup Operation Setup System MenuSetup Operation Menu Default settings operation featuresTurn Automatic Sequencing On or Off Activate / DeactivateSet Interval & Start Time 1- to 99-Day Interval Set Start Time Hour IntervalTurn Standby Testing On or Off Change Standby TestingSpecify Failed Standby Response Failed Standby responseSpecify Hold Delay Time Hold Delay TimeSetup Operation Menu Restart Delay TimeOverride Output Clear Alarms & Logs Clear Active AlarmsClear the Alarm Log Clear the Event LogAC4 Specifications SpecificationsAppendix a Service Terminal Interface Comparison of Functions LCD and Service Terminal InterfaceConnecting to the Service Terminal Interface Create a Connection COM1 Port SetupSpecify COM Port Connection Properties Setup Ascii SetupSettings tab Ascii Setup buttonConnect to the Service Terminal Interface Click on the file name for example, AC4.htSilence Alarm and Backup Log Files Setup Menu OverviewView Status 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.5.2Back Up Alarm Log File Backup Log Files Alarm Log FileBackup Log Files Event Log File Back Up Event Log FileLogin Menu Setup MenuLogin Setup Menu Setup MenuTips on Using the Service Terminal Interface See DescriptionSetup Inputs Setup InputsSetup Common Alarm Setup Common AlarmSetup Zones Setup ZonesSetup Outputs Setup OutputsSetup System Info Setup System InfoChange Password Setup Site ID Set Date & TimeBackup & Upload Configuration File Backup Backup & Upload Configuration File Upload Factory DefaultsFirmware Update Service Terminal Interface only Firmware UpdateSetup Operation Auto Sequencing Setup OperationAuto Sequencing Standby Testing Setup Operation Standby TestingHold Delay Setup Operation Failed StandbySetup Operation Hold Delay Failed StandbyRestart Delay Setup Operation Restart DelayOverride Output Override OutputClear Alarms & Logs Clear Active Alarms Clear Alarms & LogsClear Alarms & Logs Clear the Alarm Log Clear Alarms & Logs Clear the Event Log Page Technical Support/Service Company Behind the ProductsLocations 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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