Volvo VNL Operator's Manual page 232

Smoke Detector (option)
Your vehicle may be equipped with a
smoke detector. The detector gives a warn-
ing signal when smoke particles enter it.
Other particles of the same type (cigarette
smoke, dust and exhaust gases) can also set
off the alarm.
If driving in dusty environment or if the
driver wants to smoke, the alarm can be si-
lenced temporarily.
The alarm has two sound levels. The first
ten seconds, the sound intensity is at 65
dB(A) and then it increases to 85 dB(A).
The tone is pulsating. It can be temporarily
silenced by pressing the function button
(one the detector and one on the dash). The
alarm is now switched off for 10 minutes.
After that, the detector goes back to normal
operation. When switched off, a short sig-
nal is heard every 50 seconds.
The detector battery is monitored automati-
cally. When the voltage is too low to
ensure proper function, a short signal is
heard every 45 seconds. To check the bat-
tery, hold down the function button for
approximately 5 to 10 seconds. If the bat-
tery is functional, the alarm sounds as long
as the button is pressed.
The battery lasts for 1 to 2 years. Its lifes-
pan depends on the number of alarms and
high temperatures over 155 F (70 C).
About 1 month before the battery is fully
depleted, the alarm will start to sound in
short bursts of sound. The detector func-
tions normally during this time but change
the battery as soon as possible.
The detector uses an ordinary 9 volt bat-
tery. Always test the alarm after replacing
battery.
Cab Interior and Sleeper
Operation
Alarm
Battery
Change
Switched
Off Mode
Control Signal
Lamp
Flashes Silent
every 45 s.
Flashes con- Pulsating
tinuosly sound
Flashes Beep every
every 45 s. 45 s.
Flashes Beep every
every 10 s. 50 s.
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