Connecting The Pipe System To The Aspirating Smoke Detector; Return Line - Siemens FDA241 Technical Manual

5.2.3
5.2.3.1
Building Technologies
Fire Safety
Connecting the pipe system to the aspirating smoke
detector
NOTICE
Connection between pipe system and aspirating smoke detector
Damage to the pipe system and/or the aspirating smoke detector
● Do not glue the pipe system to the aspirating smoke detector! If the pipe
system has to be separated from the aspirating smoke detector for
maintenance work or repairs, components may be damaged.
 The pipe system is installed.
 The last 500 mm of the pipe system on the aspirating smoke detector must be
straight, such that flow turbulences can be eliminated before entering the
aspirating smoke detector.
1. Press a short pipe securely into the air inlet on the aspirating smoke detector.
2. Connect the pipe system and the pressed-in pipe piece to the aspirating smoke
detector.
 The pipe system is connected to the aspirating smoke detector.
You will find more information in document A6V10334435.
See also
 Applicable documents [➙ 9]

Return line

If there is an air pressure difference of >45 Pa between the monitored area and the
aspirating fire detector, a return line is required.
NOTICE
Connection between aspirating smoke detector and return line
Damage to the return line and/or the aspirating smoke detector
● Do not glue the return line to the aspirating smoke detector! If the return line
has to be separated from the aspirating smoke detector for maintenance work
or repairs, the return line or the aspirating smoke detector may be damaged.
Press the return line securely into the air outlet on the aspirating smoke
detector.
You will find more information in document A6V10334435.
See also
 Applicable documents [➙ 9]
Mounting / Installation
Mounting
A6V10334410_h_en_--
2015-09-29
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