Automatic Fire Protection Extinguishing Systems for Racks

Automatic Fire Protection Extinguishing Systems for Racks

WHAT IS A FIRE PROTECTION SYSTEM IN RACKS

INTRODUCTION

Functioning IT systems should not be taken for granted. Yet for companies that have to ensure a high level of data availability, with ever more powerful systems, this reliability is often a matter of survival. High thermal loads are generated especially in high-tech 19″ racks with a compact design, which may eventually lead, in the worst case, to the outbreak of a fire.

OneU fire protection systems offer optimal protection in these circumstances. These devices are truly innovative, with minimal space requirements for a full range of equipment.

PEFIPRESA, led by the expertise of MINIMAX, design and maintenance this systems, providing the best solution for these types of risk.

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WHAT DOES SENSITIVE DETECTION AND EXTINCTION WITHOUT RESIDUE CONSIST OF?

Sensitive fire detection and residue-free extinguishing are the hallmarks of OneU fire protection systems that are designed specifically for installation in closed 19″ IT racks. A high level of data availability is ensured by redundant components and an integrated emergency power supply.

OneU systems offer maximum flexibility through modular expandability.

Conventional fire protection systems need an area of up to three rack units, while the unique installation height of the OneU fire protection system of only one unit high (44 mm), leaving space for other IT components. At the same time, the OneU system is equal in function, quality and reliability to systems that require more space.

OneU fire protection systems guarantee maximum availability of technical equipment even in the event of short circuits, overloading, overheating or component error causing an incipient fire.

The systems are therefore ideal for availability concepts, such as:

  • Server and network technology, which ensures round-the-clock availability of essential company data.
  • Production controls, which control and monitor production processes.
  • Telecommunications installations, which ensure fault-free communication for the company.

All versions of the OneU fire protection systems are tested and certified by VdS Schadenverhütung (independent German testing institution for fire protection and security) and other international certifying bodies.

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FUNCTIONS OF THE RACKS FIRE PROTECTION SYSTEMS

ASPIRATING SMOKE DETECTOR MODULE

The aspirating smoke detector module continuously extracts air samples from the monitored 19″ rack using a suction fan. By default, the module is equipped with two highly sensitive smoke sensors, which can be configured to have an adjustable response and which analyses the air samples for the presence of smoke particles.

The different response sensitivities enable a combination of pre-alarms and main alarms:

NOVEC™ 1230 EXTINGUISHING MODULE

The Novec™ 1230 extinguishing module consists essentially of a metallic extinguishing container with the extinguishing agent Novec™ 1230 by 3M™, a release mechanism with a valve and a propellant gas cartridge, an extinguishing agent leakage monitor and the OneU extinguishing nozzle.

During the extinguishing process the propellant gas cartridge is opened and the liquid extinguishing agent is released. The special geometry of the nozzle ensures that the extinguishing agent is vaporized when exiting the nozzle enabling it to unfold its full extinguishing effect. The agent permeates through the rack and all installed devices and cable spaces. In ventilated IT racks, the central position of the nozzle on the front side of the device is also beneficial for the distribution of the extinguishing agent. The fire is extinguished quickly, without residues.

A Novec™ 1230 module stores enough extinguishing agent to protect closed 19″ racks with a maximum volume of up to 2.8 m3.

POWER SUPPLY, CONTROL AND INFORMATION SYSTEM

The power supply module, consisting of the power supply unit and rechargeable batteries for the emergency power supply, ensure uninterrupted operation for at least four hours.

The detection and control electronics equipment permanently monitors the smoke sensors for proper functioning and possible contamination and automatically triggers the Novec™ 1230 module in the event of a fire. Optionally, the extinguishing module can be activated via an external manual release.

A two-line LCD and six additional LEDs indicate the operating status of the OneU fire protection system.

OneU fire protection systems can also be integrated in Ethernet networks to route messages via SMS or email, and to display them on IP-enabled devices.

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SYSTEM TYPES AND ADVANTAGES

THE OneU PRODUCT FAMILY

OneU DD aspirating smoke detector systems

OneU DD aspirating smoke detector systems and OneU ED extinguishing systems round off the OneU fire protection systems product family. Just like OneU active extinguishing systems, both devices only require a single height unit in the 19″ rack, and are inserted simply into one of the slots in the top third of the rack.

OneU ED extinguishing systems

OneU ED extinguishing systems consist essentially of a Novec™ 1230 extinguishing module and the control electronics, and each protect a closed 19″ rack with a maximum volume of 2.8 m³. They are preconfigured for connection to the OneU active extinguishing system and/or OneU DD aspirating smoke detector system.

The three units of the OneU product family can be combined depending on the individual requirements.

Up to five OneU fire protection systems can be linked together to jointly monitor interconnected IT racks.

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