• Checklist for instal ceiling

Installation Checklist

The following checklist will help you to verify that an Automist Smartscan system has been properly installed:

  • Power supply

    • The Automist circuit should be clearly labelled (a sticker is provided for this purpose.
    • Power to Automist must be provided via an unswitched fused connection unit (FCU).
    • Automist should be supplied using FP200 cable or better, ideally inside conduit or protected 50mm deep within a wall
    • Automist may be protected by an RCD or RCBO but this protection must not be shared with other circuits. Therefore Automist should be connected to the non- protected side of the consumer unit..
    • The circuit supplying a single Automist unit would commonly be protected by a type ‘C10’ or ‘B16’ MCB, for example, or ‘C20’ / ‘B32’ for two Automist units.
    • If the consumer unit is located in the same fire resisting compartment as the protected area, it should be protected by an electrical cover unit tested to BS476 Part 22 (1987) & EN1364-1 (1999).

 

  • Water Supply

    • check valve and filter must be installed to ensure back flow protection to the mains water and debris into the pump (supplied in kit).
    • Inlet water must be connected and the valve left open.
    • WRAS approved isolation valves (or equivalent) are required so that the Automist system can be shut off from the water main. All such valves should be labelled with the included supply warning labels.
    • Priority valves are not normally required but should be used in circumstances where the water supply may otherwise be inadequate.
    • Several pumps can be supplied from the same 15mm water pipe as long as they are not intended to activate at the same time.  Larger diameter piping may be required for simultaneous activation of more than a single pump.

 

  • Placement

    • All Automist units should have been successfully commissioned using heat detectors, with outlet pressure verified.
    • Minimum ventilation / cupboard size requirements met (124 litres).
    • In a room or cupboard that is separated by a fire resisting partition from the mist-protected room(s) that it serves, or the pump located such that it is: a) unlikely to be affected by a fire b) protected in the event of fire; c) unlikely to be affected by flooding.
    • All Automist pumps should show “System OK” (green LED), indicating it has been successfully commissioned.

 

  • Alarm Relay Placement (if applicable)

    • Each Automist unit should be activated by its own separate relay device (single throw relays must not be shared between multiple pumps; each pump must have a separate relay or separate “throw” of a multi-throw relay)
    • Located so that it is unlikely to be affected by a fire b) protected in the event of fire; c) unlikely to be affected by flooding or by dripping/splashing water.
    • Any potential house coding problems or fire panel cause-and-effect issues should be checked by entering ALARM TEST MODE on all pumps and sounding both related and unrelated detectors.

 

  • Head Placement

    • Between 1.2 and 1.4m high for Smartscan, between 1.4m and 1.5m for fixed head.
    • In a “preferred position” where it is not susceptible to furniture obstruction
    • That head placement matches the layout drawing supplied with the commissioning form.

 

  • High Pressure Hose

    • High pressure hose should have been flushed with air to remove water, avoid dripping and Legionella.
    • High pressure hose should be protected by a fire resisting barrier.
    • It is critically important that the high pressure hose locking pin (behind the pump) is in position so that the quick connector and o-ring are firmly retained after any operations that required disconnection of the high pressure line.

 

  • Coverage

    • If protecting the means of escape only, ensure all adjacent rooms which are not separated by a fire resisting door are covered. Covering only the stairs will not suppress fires in non-separated adjacent rooms, negatively impacting tenability on the escape route.

 

  • Documentation

    • Installer sign-off details (including pump pressure) are annotated on pump
    • An occupant info sheet is delivered to the property
    • The Installer Commissioning form is provided (can be obtained from Plumis) with the layout once it has been submitted and approved by Plumis.
    • The Plumis Warranty Certificate is provided (can be obtained from Plumis) once the layout has been submitted and approved by Plumis.