EN
54
Operating Manual: PX-1C - Smoke Alarm Device with Radio Link
Operating Manual: PX-1C - Smoke Alarm Device with Radio Link
EN
55
Rooms with straight ceilings
(slope angle < 20°)
0,5
0,5
0,5
1/2
1/2
Fig. 15 Rooms with straight ceilings
Allowed
Not allowed
Note the following for locations in rooms
with straight ceilings:
f
Select the highest mounting point on
the ceilings.
f
Mount the devices horizontally to
the mounting surface.
Narrow spaces or corridors
(1-3 m wide)
In addition, observe the following for lo-
cations in narrow rooms or corridors that
are 1-3 m wide:
f
Keep the distance of less than 7.5 m
between the front surface (end of
the corridor) and the first device.
f
Keep the distance of less than 15 m
between two devices.
Narrow spaces or corridors (< 1 m wide)
In addition, observe the following for lo-
cations in narrow rooms or corridors that
are less than 1 m wide:
f
Keep distance from surrounding walls
(exception: distance less than 0.5 m).
Narrow spaces or corridors
(floor space < 6 m
2
)
An exception are narrow rooms and cor-
ridors that have an area of less than 6 m
2
.
In this installation scenario, you can mount
the devices on the wall.
f
Position the device centrally on the
longer wall.
f
Mount the device 0.5 m below the ceiling.
Rooms with slanted ceilings
(slope angle > 20°)
In rooms with ceiling slope angles of more
than 20° to the horizontal position, heat
pads can form in the ceiling peak that
impede the smoke entering the smoke
alarm device.
> 0,50
< 1,00
> 20
°
Fig. 16 Rooms with slanted ceilings
Allowed
Not allowed
Note the following for locations in rooms
with slanted ceilings:
f
Mount devices at least 0.5 m and at
a maximum of 1 m away from the
ceiling peak.
4.3 Rooms with slanted and
horizontal ceilings
> 1,00
> 20
°
1/2
1/2
Fig. 17 Straight mounting surface at least
1 m long and 1 m wide
Allowed
Not allowed
