operation manual

EN
42
Operating Manual: PX-1 - Smoke Alarm Device Operating Manual: PX-1 - Smoke Alarm Device
EN
43
In rooms with beams (e.g., wooden
beams), the number and arrange-
ment of the devices depends on
the height of the joists and the
surface formed by the beams.
4.2 Requirements for the
monitoring area
When selecting the appropriate monitoring
area, observe the following:
f Position the device centrally on the ceiling.
f Keep a maximum distance of 6 m to
a potential re source.
f Keep a minimum distance of 0.5 m to
surrounding walls, furniture and lamps.
Areas susceptible to draughts
For occurring smoke to be able to reach the
smoke alarm device, there may not be any
strong draughty inuences around the instal-
lation site (e.g. caused by air conditioner and
ventilation intakes, fans). In rooms with forced
ventilation, perforated ceilings that serve for
ventilation must be closed off within a radius
of 0.5 m around the alarm device.
Rooms with straight ceilings
(slope angle < 20°)
0,
50
,5
1/21/2
Fig. 14 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.
The use of smoke alarm devices is gov-
erned by DIN 14676.
Minimum equipment
• Bedrooms
• Children’s bedroom
• Guest room
• Corridors that serve as escape routes
• Stairwells of apartment buildings
Optimal equipment
• All residential and hobby rooms
• Heating and work spaces
• Ofce or workroom
• Cellar
• Attic
Conditional equipment
• In kitchens, smoke alarm devices must
only be installed when false alarms
(e.g., caused by steam) are excluded
Not recommended
• Bathrooms are excluded from the in-
stallation of smoke alarm devices due
to the high development of steam
• Exception: bathrooms with
washing machines and cabinets
4.1 Area to be monitored
Use a device if at least one of the follow-
ing applies:
• Monitoring area less than 60 m
2
,
and ceiling height of less than 6 m
• Ceiling panels (height lower than
20 cm) with joists (ceiling surface
less than 36 m
2
)
Use additional equipment if at least one
of the following applies:
• Monitoring area greater than 60 m
2
• Ceiling height greater than 6 m
• High partial walls
• Separating pieces of furniture
• Platform / gallery (area greater than
16 m², at least 2 m long and wide)
• Ceiling panels (height greater than
20 cm) with joists (ceiling surface
more than 36 m
2
)