Liebert user manual Surface-Mounting the AC4, Required tools, Mounting the Panel

Page 15

Installation

2.2Surface-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.

After determining where to place the unit, check to ensure that you have all the hardware required to install the panel on the surface of a wall. Obtain the needed tools and material.

Required tools

• Electric drill (if surface is too hard to drive screws without pilot holes)

• Screwdriver

• Marker to denote layout of holes

• Four screws, each #10

2.2.1 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 mounting holes, using the back of the unit as a template (see Figure 5).

2.Drill holes, if required, to install the four #10 screws that will secure the AC4 to the wall. Clean up the debris.

3.If the wall material is not strong enough to hold the screws securely, use wall anchors.

4.Install the top two screws—the screw heads must be small enough to slip through the larger, bottom portion of the pear-shaped mounting slot in the AC4 (see inset in Figure 5). The screws must also be large enough to extend over the edges of the top of the mounting slot.

5.Hang the AC4 on the screws, letting the panel slip down until the screws are in the smaller, upper portion of the slot.

6.Tighten the screws until they are snug.

7.Insert the remaining two screws in the bottom holes on the back of the panel and tighten.

Figure 5 Mounting dimensions

12.5"

(317.5mm)

0.213"

(5.4mm)

10"

(254mm)

AC4

back plate

0.375"

(9.6mm)

Mounting Slot

 

 

 

 

0.213" (5.4mm)

 

 

Bottom hole diameter

9

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Contents Monitoring AC4Page Table of Contents Setup System Setup Common Alarm 7.5 Setup System Setup Zones Setup Menu Appendix a Service Terminal InterfaceFigures Introduction Methods of Viewing and Configuring the AC4Available Alarms Data LogsLCD for configuration Outside Enclosure OverviewOperation Typical Configuration Device Liebert ChallengerDevice RS232 Liebert Himod Controller board components Controller Board Overview24VAC power Connector RS232DIP switch LCD connectorLED Indicators LED indicators summaryOutput LEDs Status LEDs Input LEDs Typical Sequence Unpacking and Preliminary Inspection Installation ConsiderationsInstallation Packing ContentsSurface-Mounting the AC4 Required toolsMounting the Panel Flush-Mounting the AC4 Electrical connections to panel Connect Power to the AC4Wiring Specifications Wiring and ConnectionsWiring specifications Connecting Digital Outputs Connecting Digital Inputs and OutputsConnecting Liebert Environmental Units Connecting Digital InputsDigital output jumper settings Connecting Common Alarm OutputsRS232 Connector Setting the Digital Output JumpersGuide to AC4 functions Overview of MenusOpening Screen Overview Main Menu OverviewLCD Menu Overview View Status Options Active Alarms View Active AlarmsActive Alarms Clearing Active AlarmsAlarm Log View Alarm LogAlarm Log Alarm log conditionsEvent Log View Event LogEvent Log Event log conditionsDigital input states View Input StatusInput Status Viewing Additional Input DataDigital output states View Output StatusOutput Status Viewing Additional Output DataSilence Alarm Service Terminal Interface only Silence Alarm & Backup LOG Files Service Terminal InterfaceBack Up Log Files Service Terminal Interface only Silence Alarm & Backup Log Files Service Terminal Interface Valid characters for data entry LoginLogin System and Control OptionsClear Alarms/Logs menu Login ScreenSystem & Control menu Clear Alarms&Logs selected Setup System menuSetup System Setup Inputs Setup System OverviewDefine Input as Alarmable or Event Change Label Name of InputDefine Input as Normally Open or Normally Closed Latched / Unlatched Set Up Alarmable Inputs in Latched or Unlatched ModeSet Up Delay Time Delay TimeSetup System Setup Common Alarm Change to Reset Y or Not Reset NReset Common Alarm Message if too many devices entered Setup System Setup ZonesSet Up a Zone Message if too few devices enteredDefine Output as Normally Open or Normally Closed Setup System Setup OutputsSet Mode Define Operating or Standby ModeEnable or Disable an Output Device in Alarm Status Configure Output for Loss of Power Fail-SafeReset Password to the Factory Default Aaaa Setup System Setup System InfoChange Password Change the PasswordSet Date & Time Setup Site IDSetup Site ID Set Date & Time/Automatic Daylight Saving 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 Default settings operation features Setup OperationSelect Setup Operation Setup System Menu Setup Operation MenuSet Start Time Hour Interval Turn Automatic Sequencing On or OffActivate / Deactivate Set Interval & Start Time 1- to 99-Day IntervalFailed Standby response Turn Standby Testing On or OffChange Standby Testing Specify Failed Standby ResponseRestart Delay Time Specify Hold Delay TimeHold Delay Time Setup Operation MenuOverride Output Clear the Event Log Clear Alarms & LogsClear Active Alarms Clear the Alarm LogSpecifications AC4 SpecificationsComparison of Functions LCD and Service Terminal Interface Appendix a Service Terminal InterfaceConnecting to the Service Terminal Interface COM1 Port Setup Create a ConnectionSpecify COM Port Connection Ascii Setup button Properties SetupAscii Setup Settings tabClick on the file name for example, AC4.ht Connect to the Service Terminal InterfaceMain Menu For sample screens, see Silence Alarm and Backup Log FilesSetup Menu Overview View Status OverviewView Status Menus Main MenuMain 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 StatusSection A.5.1 Section A.5.2 Silence AlarmBack Up Event Log File Back Up Alarm Log FileBackup Log Files Alarm Log File Backup Log Files Event Log FileSetup Menu Login MenuLogin See Description Setup MenuSetup Menu Tips on Using the Service Terminal InterfaceSetup Inputs Setup InputsSetup Common Alarm Setup Common AlarmSetup Zones Setup ZonesSetup Outputs Setup OutputsSetup System Info Setup System InfoChange Password Set Date & Time Setup Site IDBackup & Upload Configuration File Backup Factory Defaults Backup & Upload Configuration File UploadFirmware Update Firmware Update Service Terminal Interface onlySetup Operation Setup Operation Auto SequencingAuto Sequencing Setup Operation Standby Testing Standby TestingFailed Standby Hold DelaySetup Operation Failed Standby Setup Operation Hold DelaySetup Operation Restart Delay Restart DelayOverride Output Override OutputClear Alarms & Logs Clear Alarms & Logs Clear Active AlarmsClear Alarms & Logs Clear the Alarm Log Clear Alarms & Logs Clear the Event Log Page Asia 23F, Allied Kajima Bldg Technical Support/ServiceCompany Behind the Products Locations
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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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