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High Sensitivity Smoke Detection (HSSD) is the most sensitive form of smoke detection available.
High Sensitivity Smoke Detection systems comprise an air sampling unit (ASU) from which red air sampling pipework is routed throughout the protected area.
Air is continuously drawn via apertures in the pipework to the ASU which uses laser technology to analyse the air quality. At commissioning stage, the programmable threshold levels are set giving the facility for a pre-alarm warning at a first threshold and full alarm at a second threshold.
Applications for HSSD include very high bay warehousing, environments which are subject to extremes of temperature, e.g. cold stores, and areas with rapid air movement such as air conditioning plenum chambers.
KeyCall® is a revolutionary patent-granted Key Operated Fire Alarm Activation Device which has been developed specifically for ‘approved’ applications where standard fire alarm call points would be vulnerable to abuse. Developed by Fixfire® in response to growing demand from the Mental Health Care sector, KeyCall® is a revolutionary one-piece analogue addressable key operated manual call point.
Compatible with a wide range of Conventional and Addressable Fire Alarm Systems.
KeyCall® accepts a Euro-Profile style cylinder
Typically suited/keyed-alike cylinders are fitted so that authorised persons can activate KeyCall® using their standard door key.
Key ‘Click-latch’ mechanism ensures key ‘latches’ in correct position to activate Fire Alarm System.
Anti-ligature low-profile flush-mounting design.
Neat minimalistic one piece construction incorporating Fire Alarm interface module.
Red fire indicator illuminates when KeyCall® is activated.
Compatible with a wide range of Conventional and Addressable Fire Alarm Systems
Applications include:
- Prisons
- Mental Healthcare
- Special Educational Needs (SEN) School
Air Sampling Pipework
Air Sampling Pipework
Air Sampling Unit
British Standard Design requirements...
- Install AFD to voids greater than 800mm
- Treat downward projections exceeding 10% of the void depth as wall
BS5839-Part 1:2013 states:
22.2d) If the system Category is such that automatic fire detection should be provided in any area that contains a horizontal void of 800 mm or more in height, automatic fire detection should also be provided in the void.
22.3j) Ceiling obstructions, such as structural beams, deeper than 10% of the overall ceiling height should be treated as walls [see Figure 10a)]. NOTE 10 Within horizontal voids, beams or obstructions that are deeper than 10% of the overall depth of the void regardless of whether the void is above the ceiling or below the floor, ought to be treated as walls that subdivide the void.
VoidAlert Remote Indicator
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High Sensitivity Smoke Detection (HSSD) is the most sensitive form of smoke detection available.
High Sensitivity Smoke Detection systems comprise an air sampling unit (ASU) from which red air sampling pipework is routed throughout the protected area.
Air is continuously drawn via apertures in the pipework to the ASU which uses laser technology to analyse the air quality. At commissioning stage, the programmable threshold levels are set giving the facility for a pre-alarm warning at a first threshold and full alarm at a second threshold.
Applications for HSSD include very high bay warehousing, environments which are subject to extremes of temperature, e.g. cold stores, and areas with rapid air movement such as air conditioning plenum chambers.
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