Sayyed Fire Integration
Suppression & special hazard

Clean-agent flooding with Novec 1230

Suppression for occupied electronics rooms — it puts the fire out and leaves no residue, no water and nothing to clean off a server.

Four red clean-agent suppression cylinders standing against a wall in a server room, each with a brass discharge valve and pipework overhead.
Derrick Coetzee · CC0
Scope
Survey → commissioning → AMC
Practice
ISO 14520 · NFPA 2001
Typical use
Server rooms, control rooms
What it is

The system you can put in a room people work in

A clean agent absorbs heat rather than displacing oxygen, so the design concentration for a fire is well below the level at which it affects the people in the room. That is the difference between this and a CO₂ system, and it is why clean agent is the normal answer for a server room, a control room or a UPS room that somebody is sitting in.

It discharges as a gas, disperses through the enclosure in about ten seconds and leaves nothing behind — no residue, no corrosive by-product, no water. After a discharge you ventilate the room and go back to work; the equipment that was running is still running. Against a water or powder discharge in the same room, that is usually the entire business case.

Everything then depends on the enclosure holding the gas for long enough. We survey the room for leakage paths first — raised floor voids, ceiling plenums, cable transits, door undercuts — and design the quantity, the nozzle layout and the pressure relief against the actual volume. Commissioning includes the release sequence, the interlocks and the room integrity check, and the discharge calculation is handed over with the system.

Equipment

What the installation is built from

The agent is only part of it. What makes a clean-agent system work is the enclosure, the nozzle layout and the release logic.

Agent cylinders and valve assemblySized to the enclosure volume, with the pressure gauge, weight supervision and discharge hose.
Discharge nozzles and pipeworkOrificed by calculation so the agent reaches design concentration everywhere in the room within the discharge time.
Releasing panel with abort and manual releaseCross-zoned detection, the pre-discharge delay, and a way for a person in the room to stop it.
Detection above and below the floorSmoke detection in the ceiling, the void and the plenum — a fire in a cable tray is not visible from the room.
Pre-discharge alarm and signageSounder and beacon in the protected space, and the warning plate at each door.
Damper, fan and door interlocksThe room has to seal before the agent arrives, or the concentration will not hold for its retention time.
Pressure relief ventSized to the discharge, so the pressure spike does not lift a ceiling or spring a door.
Room integrity provisionSealing of transits and voids, then a check that the enclosure holds concentration long enough to be sure.

Tell us about the project

Send the drawings or the BOQ and we will price it line by line. Most enquiries start with a site visit, because the site decides the system — not the catalogue.