Building Technologies A6V10334410_h_en_--
Fire Safety 2015-09-29
3.3.1 Water trap in the pipe system
In the case of highly variable ambient conditions where there is a risk of
condensation water forming in the pipe system, a water trap must be used. The
water trap collects the condensation water. The condensation water must be
drained via a drain hole in the water trap.
The condensation water that has been collected must not enter the airflow and
must be drained in good time.
Installation site requirements
It must be easy to read the level of water in the water trap.
It must be possible to access the water trap when full for the purpose of
emptying it.
The water trap must be installed at a horizontal point within the pipe system
that is as low as possible. It must not be possible for water to accumulate at
any other point.
Example of how to arrange a water trap
→ → Airflow
1
Aspirating smoke detector with front
indicator that is rotated by 180°
4 Valve for draining condensation water
2
T-fitting for connecting the water trap at a
low horizontal point within the pipe system
5 Outlet opening
3
Distance between manifold and surface of
the water > 300 mm
6 Condensation water
See also
Adapting the front indicator to the installation position [➙ 58]
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