System and Control Options

7.8Setup Operation

The AC4’s operation features allow you to set up a rotation sequence to alternate which devices are operating and which are placed on Standby, as well as test devices while in Standby mode and specify what to do when a Standby device goes into alarm as it is powered up. You may also specify delay times after an output changes state, direct- ing the AC4 to wait before acknowledging inputs or turning an output on or off.

To change any operation features:

Log In and Choose Setup System

• From the Main Menu, use the arrows ↑↓ to choose System and Control, then press Enter (see 7.1 - Login for help).

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows ↑↓ to choose Setup System, then press Enter .

Select Setup Operation

Setup System Menu

SETUP INPUTS SETUP COMMON ALARM SETUP ZONES

↑↓ =NEXT =SELECT

SETUP OUTPUTS SETUP SYSTEM INFO

> SETUP OPERATION

Setup Operation Menu

>AUTO SEQUENCING OFF STANDBY TESTING OFF

FAILED STANDBY N

↑↓ =NEXT

=SELECT

 

 

HOLD DELAY

: 10:00

RESTART

 

: 00:06

• From the Setup System Menu, shown at right, use the arrows ↑↓ to choose Setup Operation and press Enter .

• Use the steps following Table 18 to access any of the Setup Operation options.

Table 18 shows the default settings for operation options: automatic sequencing, standby testing, failed standby, hold delay and restart.

Table 18 Default settings - operation features

Feature

Default

Other Options

 

 

 

AUTO SEQUENCING

OFF (Deactivated)

ON (Activated), 12h (Activated for 12-hour intervals)

STANDBY TESTING

OFF (Deactivated)

ON (Activated)

FAILED STANDBY

N (Deactivated)

Y (Activated)

HOLD DELAY

10:00 (No delay)

Any time (in minutes and seconds) from 00:00 to 99:59

RESTART

00:06 (No delay)

Any time (in minutes and seconds) from 00:00 to 99:59

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Liebert AC4 Select Setup Operation Setup System Menu, Setup Operation Menu, Default settings operation features

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.