Ambient Conditions; Conditions Inside The Room; High And Open Halls And Rooms; Cavities In Ceilings And Floors - Siemens FDA241 Planning, Mounting

Planning
4

Ambient conditions

4.17 Ambient conditions

4.18 Conditions inside the room

4.19 High and open halls and rooms

4.20 Cavities in ceilings and floors

46 | 56
Building Technologies
Fire Safety
Ambient conditions may affect the aspiration behavior of the pipe system.
Check the following factors:
High air speeds
Frequent air change
Air pressure fluctuations
Changes in air temperature
Radiant heat
High air humidity
Vibrations
In light of the ambient conditions, it may be necessary to use an alternative
material for the pipe system.
The conditions inside the monitored room affect the design of the pipe system and
the position of the aspirating holes.
Take account of the following:
Does the room feature natural ventilation or mechanical ventilation?
Are the conditions in the room constant or do they change?
Is the room subject to smoke, dust, vapor, flames, vibrations, or heat?
High and open rooms include, for example, atriums, auditoriums, airplane hangars,
exhibition halls, and warehouses. Inside rooms such as these, air layers may form.
These air layers act as a barrier to free air exchange and may prevent the smoke
from reaching the ceiling. In such cases, pipes with aspirating holes can be moved
further down frames or walls.
In the case of certain applications, cavities in ceilings and floors are suitable for
extracting air. These cavities can be integrated into the pipe system so that they
can be monitored reliably. This offers advantages in respect of cable channels in
computer rooms, for example.
A6V10334435_g_en_--
2017-09-12