D.Operates the flashing warning light on the front panel of the slave UPS indicating that the Main Rotary Switch should not be operated while sync is being acquired with the master UPS.

2.4SYSTEM OPERATION

The Series 300 LBS option performs the following functions:

A.Continuously senses the phase relationship between the outputs of the two UPS modules that make up the system.

B.If the two systems lose sync with each other for more than a predetermined period of time (adjustable from 0.1 to 5 seconds) and the AUTO/OFF switch is set to the AUTO position then the LBS will sync the Designated Slave System (DSS) to the Designated Master System (DMS). The DMS and DSS are selected manually using the master system select switch. If the DSS is on bypass and unable to sync to the DMS then the DMS will sync to the output bus of the DSS. This reselection of the master system will be accomplished automatically.

C.Continuously monitors the sync and the quality of the bypass input voltage to both systems. Once the sync and voltage quality between to two systems have been restored for 5 seconds, the LBS will become dormant and allow each system to operate independently.

Note: Failure of any part of the LBS will not cause system failure. The worst case effect would be that the two systems would not be able to synchronize to each other.

Series 300 Load Bus Synchronization

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PRODUCT

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Liebert 300 manual System Operation
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300 specifications

The Liebert 300 is a high-performance precision cooling unit designed specifically for critical environments such as data centers, telecommunications facilities, and server rooms. This system ensures optimal temperature and humidity control, which are crucial for maximizing the performance and longevity of sensitive electronic equipment.

One of the main features of the Liebert 300 is its advanced cooling technology. It employs a direct expansion (DX) cooling system, which provides efficient cooling without the need for extensive ductwork. This design allows for easy installation and retrofitting in existing facilities. In addition, the unit is equipped with variable-speed compressor technology, enabling it to adjust cooling output based on real-time demands. This capability dramatically increases energy efficiency while maintaining the ideal operating conditions for critical equipment.

The Liebert 300 also incorporates intelligent controls and monitoring systems. With embedded microprocessor controls, users can manage and customize settings via a user-friendly display interface. Real-time monitoring of temperature, humidity, and airflow ensures that any fluctuations are promptly addressed. This system is also compatible with building management systems (BMS) to provide comprehensive oversight of all environmental conditions.

In terms of energy efficiency, the Liebert 300 meets or exceeds the latest industry standards, such as ASHRAE and ISO. Its eco-friendly refrigerants help reduce environmental impact, aligning with sustainability goals. Additionally, it features advanced heat recovery options, allowing for the reuse of thermal energy for heating processes or hot water generation.

The design of the Liebert 300 emphasizes not only performance but also reliability. Built with durable materials and robust construction, this unit is engineered to operate continuously under demanding conditions. Regular maintenance is simplified through its modular structure, allowing for easy access to components that may require servicing or replacement.

Overall, the Liebert 300 represents a comprehensive solution for precision cooling needs, integrating cutting-edge technology with user-focused design and energy-saving features. Its capability to adapt to changing environments and workloads makes it an essential component in maintaining the integrity and performance of critical infrastructure in today's technology-driven world. Whether for new installations or upgrades, the Liebert 300 stands out as a premier choice for ensuring optimal climate control in mission-critical applications.
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