User Manual

With the aspirating smoke detectors FDA221 and FDA241, Siemens intro- duces the innovative optical dual- wavelength detection technology that uses blue and infrared light sources for early and reliable fire detection.
The new aspirating smoke detectors
FDA221 and FDA241 from Siemens
use smart, innovative technology for
accurate detection.
Aspirating smoke detection Aspirating smoke detection (ASD) tech- nology is ideal for difficult environmental conditions. Air samples are continuously drawn from the areas requiring protection and evaluated in the detector chamber
for the presence of smoke. New technology for early and reliable detection Thanks to the innovative optical dual- wavelength detection technology, the aspirating smoke detectors FDA221 and FDA241 from Siemens offer the highest detection reliability and immunity to deceptive phenomena. Using the two wavelengths blue and infrared, the detec- tors reliably detect smaller airborne parti- cles as produced in the earliest stages of overheating or as found in open fires. The aspirating smoke detectors from Sie- mens differentiate between smoke parti- cles and deceptive phenomena such as dust or dirt. The detectors are so reliable that a Genuine Alarm Guarantee can be offered.
Direct integration FDA221 and FDA241 can be smoothly integrated into a fire detection system from Siemens by placing them directly onto the detector loop. Benefits include reduced planning effort and less hardware and cabling, as all devices are on the same loop. Wide range of applications The aspirating smoke detectors from Sie- mens are generally used in areas where point detectors cannot, or have a limited usage. They are particularly suitable for application areas where environmentally challenging conditions prevail, where an aesthetically appealing solution is desired or where high detection sensitivity is needed.
ASD from Siemens – invisibly efficient
siemens.com/asd
Aspirating smoke detection Planning Tool
BT_0153_EN
Subject to changes and errors. The information given in this document only contains general descriptions and/or performance features which may not always specifically reflect those described, or which may undergo modification in the course of further development of the products. The requested performance features are binding only when they are expressly agreed upon in the concluded contract. © Siemens Switzerland Ltd, 2017
Published by
Siemens Switzerland Ltd 2017 Building Technologies Division International Headquarters Gubelstrasse 22
6301 Zug Switzerland
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Planning an ASD network
Example “historical rchitecture” Function principle
In historical buildings, the challenge is to not obstruct the artistically designed, historically valuable walls and ceilings. That is why a hidden installation of the sampling pipe network should be chosen. Usually, the sampling pipe is installed within a ceiling void. Capillary tubes are used to draw air samples from the room that is being pro- tected. The detector unit can be placed in a hidden location that is easy to access.
Example “data centers” Function principle
Data centers have a great fi re risk potential due to all the electronics installed. They also present diffi cult environmental conditions because of high ventilation and intensive air changes. However, they require particularly early intervention to protect the highly valu- able equipment and the data it contains. Aspirating smoke detectors from Siemens are the ideal solution because they allow, for example, protection of individual elec- tronic cabinets. As a result, potential fi res can be detected early and reliably.
Example “clean rooms” Function principle
Clean rooms are diffi cult environments for fi re and smoke detection because of the forced air fl ow and the high air speed. Here, an underfl oor ASD system is the ideal choice. Furthermore, the aspirating smoke detectors from Siemens can also monitor the air within the production area for any con- tamination due to the active air sampling of the ambient air. Another benefi t is that maintenance and service personnel don’t need to enter the clean room because the aspirating smoke detector can be positioned outside.
Example “high storage areas” Function principle
In high storage areas like warehouses, the pipe system can be easily integrated into the storage infrastructure. As a result, air samples are actively drawn throughout the entire height, making fi re detection highly reliable. The aspirating smoke detectors from Siemens can be placed in an easily accessible location, which facilitates service and maintenance.