Liebert manual AC4 Specifications, Ordering Information, Typical Configuration

Page 4

AC4 Specifications

Power Requirements

24VAC ±10% of nominal

50/60 Hz, 1.3A, 30VA

 

 

 

Dimensions W x D x H, in. (mm)

14-1/4 x 2-3/4 x 12

(361.95 x 69.85 x 304.8)

Weight (Assembled)

7.68 lbs (3.48 kg)

Enclosure Type

NEMA 1

Liquid Crystal Display (LCD)

Four line, 20 character, backlit

Mounting Surface

Building Wall or Structural Member

Ambient Operating

32°F to 104°F (0°C to 40°C)

Environment

0% RH to 95% RH (non-condensing)

Processor Specifics

 

Model

Motorola XC68HC812A4

 

 

Clock speed

16MHz

 

 

Total RAM

32Kb

 

 

Total FLASH

4M

 

 

Total EEPROM

4K

 

 

A/D Resolution (Analog IN)

12 Bit

 

 

Clock Type

Real-Time Clock

 

 

Clock battery backup type

Lithium Cell (non-replaceable)

 

 

Clock battery life

7 years, constant, no power

 

 

Communications

 

Local Communications

RS232

 

 

Agency Listings

 

UL

UL3121

 

 

CSA

C22.2 NO. 1010

 

 

CE

Yes

 

 

FCC Compliance

CFR 47 Part 15

 

 

Inputs & Outputs (Quantity)

 

Digital Inputs (4)

Dry Contact Closure

24VDC, 10 mA

 

Digital Outputs (4)

24VAC, 3A

 

 

Common Alarm Outputs (2)

24VAC, 3A

 

 

Typical Configuration

RS232

DEVICES CONNECTED

TO INPUTS & OUTPUTS

Zone 1 Devices

Device 1

Device 2

Liebert

Liebert

Challenger

Challenger

3000

3000

Zone 2 Devices

Device 3

Device 4

Liebert Liebert

Himod Himod

Ordering Information

Quantity

Part #

Description

 

 

 

 

AC4

AC4 controller board in enclosure

 

 

 

 

201258P1

RS232 configuration cable

 

 

 

 

TM115

Transformer Module 115VAC with two 24VAC outputs (40VA each) and 115VAC receptacle

 

 

 

 

TM230

Transformer Module 230VAC with two 24VAC outputs (40VA each)

 

 

 

 

 

 

Liebert Corporation

1050 Dearborn Drive

Telephone: 1-800-877-9222

P.O. Box 29186

Facsimile: 1-614-841-6022

Columbus, OH 43229

www.liebert.com

© 2004 Liebert Corporation

All rights reserved throughout the world. Specifications subject to change without notice.

®Liebert and the Liebert logo are registered trademarks of Liebert Corporation. All names referred to are trademarks or registered trademarks of their respective owners.

SL-31205 (11/04) Rev. 0

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Contents AC4 Components and Key Features Features and BenefitsDescription AC4 enclosure Internal features AC4 enclosure External featuresHardware and Components Keypad displayDimensions Wiring SpecificationsTypical Configuration AC4 SpecificationsOrdering Information
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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.