jablotron SD-728 Manual

jablotron SD-728 Manual Manual pdf 1 page image

The SD-728 stand-alone smoke detectorThe SD-728 is used to detect fire hazards in interior residential or commercialbuildings (non- industrial). It is battery-powered with a built-in warning siren and redLED. It warns of fire to provide sufficient time to extinguish the fire, or to leave thepremises and make calls for help. Smoke detectors need to be installed in the rightplace, regularly maintained and tested as described in this manual. The opticalsmoke detector works on the principle of scattered light and is very sensitive tolarge dust particles, which are dense, and is less sensitive to smaller particlesgenerated by the combustion of liquids such as alcohol.Detector rangeThe smoke detector must be installed so that any smoke easily drifts into thedetector, such as on the ceiling. It is suitable for residential buildings, but notsuitable for free spaces, outdoor environments or interiors with an extremely highceiling where fire by-products would not reach the detector position.The detector must always be placed in the section leading to the exit of thedwelling (escape route), see Figure 1. If the dwelling has a floor area greater than150 m2, an additional detector is required, see Fig.2.An apartment block must be equipped with a detector in each apartment. In familyhouses and residential flats or maisonettes a detector must also be placed at thehighest point of the common hallway or spaces (escape routes), see Fig.3.KITCHENMINIMUM SECURITYFOR MORE SECURITYLIVING ROOMBEDROOMBEDROOMSFig. 1BEDROOMSBEDROOMBEDROOMLIVING ROOMKITCHENMINIMUM SECURITYFOR MORE SECURITYFig. 2It is recommended to placeadditional detectors in rooms wherepeople sleep in rooms with anincreased risk of fire, see Fig.2.Positioning on level ceilingsPlace the detector in the center ofthe room, as level as possible.Detectors must not be recessed intothe ceiling (worse conditions for thespread of smoke). Never place thedetector in a room corner (ensure adistance of at least 0.5 meters fromthe corner), see Fig 4.BEDROOMKITCHENMINIMUM SECURITYBEDROOMBEDROOMFig. 3• Installation on sloping ceilingsIf the ceiling is not suitable for mounting on a level surface (eg a room under aroof ridge), the detector can be installed as in Figure 5.0.5mCEILINGBEST LOCATION(CENTRE OF CEILING)ACCEPTABLELOCATIONFig. 490cmFig. 5• Walls, partitions, barriers and lattice ceilingsThe SD-280 must not be installed closer than 0.5 m from any wall or partition. Anarrow room with a width of less than 1.2m requires the detector(s) to be placed at adistance of at least one third of the room’s width away. In the case of separating walls(partitions, warehouse objects) which do not reach the ceiling, the space is considered tobe fully separated if the gap between the top of the separating wall and the ceilingdoes not exceed 0.3 m. A free space of at least 0.5m is required under the detector.Irregularities in ceiling shape which do not exceed 5% of ceiling height are considered

/ 2

Related manuals for jablotron SD-728