Technical Description; Installing The Device - Dometic FA25 Instructions De Montage Et De Service

FA25
4

Technical description

A diode has been inserted in the smoke chamber of the photoelectric smoke alarm.
This diode emits an infrared beam that shines uninterrupted through the chamber. If
a sufficient concentration of smoke particles are present in the chamber, the light
beam is interrupted and dispersed. The broken light beam strikes a sensor and trig-
gers the alarm.
Item in fig. 1,
page 2
1
2
5

Installing the device

!
WARNING!
• Do not install the smoke alarm:
– in rooms where the temperature can drop below 4 °C or rise over
38 °C
– in damp rooms
– next to doors and windows
– close to a fan or a heater
• Maintain a distance of at least 3 meters from cordless telephones,
microwaves and other wireless devices that lie within in the 2.4 GHz
range.
A
NOTICE!
• Make sure you do not drill through the ceiling.
• If the screws supplied are too long, you must use more suitable
screws instead.
➤ Release the smoke alarm from the base plate (fig. 2, page 2).
➤ Select an installation site as close to the centre of the room as possible, with a dis-
tance of at least 50 cm from walls and obstacles.
➤ Fix the base plate to the horizontal ceiling with 2 screws (fig. 3, page 3).
EN
Label
TEST/HUSH button
LED
Technical description
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