Frequently Asked Questions

Frequently asked questions

Frequently asked question about Automist Smartscan Hydra®

Automist® dispenses a water mist “fog” from a wall mounted position directly at the fire, so that the water mist doesn’t have to penetrate the hot layer of gas and smoke at the ceiling of the room.

— Minimising evaporation of the water mist
— Maximising the amount of water mist drawn into the base of the fire, for maximum suppression

The face plate of Automist Smartscan Hydra® is 124mm wide by 129mm height. The depth required to recess the sprayhead into the wall is 70mm. The sprayhead can be mounted to a plasterboard wall, a solid brick/block wall or recessed into a fixed piece of furniture (eg. bookcase).

The Automist® pump is 182mm wide, 240mm deep and 365mm high. 100mm of clearance is required around the pump. Space for the water supply and filter will also need to be considered. The pump will need a dedicated electricity supply and a water supply with a required pressure of 1.5 bar and a flow rate of 8 litres per minute.

Flashover occurs when heat inside a room builds to a high enough temperature that all combustable items within that room will ignite. Automist® is designed to detect and combat a fire at an early stage in order to prevent growth, reduce heat, reduce toxic gases and to prevent a flashover.

Automist® has been extensively tested to verify its performance in a real fire scenario. Videos of these tests can be viewed on our performance page.

The Automist® fire suppression system is designed using Plumis® software to achieve maximum room coverage from the wall mounted Smartscan Hydra® sprayhead. Large rooms may require more than one sprayhead to achieve full watermist coverage.

Automist® standard parts warranty is 2 years. This is extended to 4 years when the end user has the system serviced annually.

We are based in Leicestershire. We operate throughout The Midlands counties of: Leicestershire, Rutland, Lincolnshire, Nottinghamshire, West Midlands, Derbyshire Warwickshire, Stafforshire, Shropshire, Cambridgeshire, Worcestershire.

Once installed and commissioned, the Automist® high pressure hoses are pressured with air to remove all water in the system, resulting in a ‘dry pipe’ system, reducing the risk of legionella. The Plumis® legionella risk assessment can be viewed here.

The installation of Automist® fire suppression systems is only carried out by Plumis® approved installers. These installers are fully trained by Plumis® to design, install, commission and maintain Automist® systems. In order to achieve Plumis® approval, all installers must be insured and undergo an annual inspection.

Ceiling mounted smoke and heat detectors are designed to give an early warning of fire to the Automist® system, allowing Automist® to combat a fire in its early stages, reducing heat, toxic smoke and increasing the time that occupants have to escape safely.

A retrofit installation is when Automist® is installed in an existing building. Automist can be retrofitted with minimal disruption to the fabric of an existing building – ideal for any occupied premises and heritage buildings.

The Automist® pump requires a mains water supply delivering 8 litres per minute flow and 1.5 bar pressure. (this is confirmed at system design stage). The electricity supply needs to be a circuit dedicated to the Automist® system, wired in fire resistant cable and protected by a C16 circuit breaker or residual current device. The electrical supply can be installed by Firemist or project electrical contractor.

There is a stop button located on the Automist® controller. During Automist® activation, the stop button on the controller can be pressed to halt water mist from being dispensed. This will stop the water mist spray but the system will remain in an active state, scanning for fire should it reignite.

In the event of a fire, Automist® will dispense water mist for 30 minutes unless the controller stop button is pressed. Automist will then require recommissioning in order to fully reset the system and remove all water from the high pressure hoses.

Automist® manufacturer, Plumis® recommends that Automist® systems are serviced annually.
Following an annual system service, we will register a 12 month warranty to cover the Plumis® manufactured components.