User's Manual

Signal pattern
When the alarm detects over 45 ppm CO, the red LED blinks in accordance with the table. This
helps locate CO leaks as the alarm gives an indication straight away. This pre-alarm signal may
be triggered by CO coming from e.g. cooking with gas, car engines or nearby barbecues. This
is usually not a concern, unless the pre-alarm signal persists until the alarm sounds and the
CO source is unknown. Note that the alarm may sound if cigarette smoke is blown into it, or
aerosols are released nearby.
Depending on the cause of the alarm, the signal patterns are as follows:
CO level/fault Red alarm LED Alarm sound Visit receiver
> 45 ppm 1 red blink every 3 s On within 60 – 240 min Alarm within 60 – 240 min
> 100 ppm 2 red blinks every 3 s On within 10 – 50 min Alarm within 10 – 50 min
> 250 ppm 3 red blinks every 3 s On within 4 – 15 min Alarm within 4 – 15 min
> 750 ppm 3 red blinks every 3 s On within 3 min Alarm within 3 min
Low battery 1 yellow blink every 50 s 1 beep every 50 s —
Faulty unit 2 yellow blinks every 50 s 2 beeps every 50 s —
End of Life 3 yellow blinks every 50 s 3 beeps every 50 s —
Note: When the low battery warning occurs for the rst time, you have at least 30 days to replace the
batteries. You can press the test/hush button to temporarily hush the low battery warning for 24 hours.
Using broadcast
If you want the CO alarm signal to be transmitted to all Visit receivers within radio range, you
can activate broadcast mode. This will override the radio key settings.

To activate broadcast, remove the CO alarm from the bracket and move
the radio switches on the back of the alarm to the 110010 position, see
the image to the right.
Installation
Make sure to select a location complying with the advice in Location and positioning.
1 Remove the mounting bracket from the CO alarm by turning it counter-clockwise.
2 Taking care to avoid any electrical wiring, x the mounting bracket to the ceiling or wall
using the supplied screws and plugs.
3 Fit the alarm to the bracket by turning it clockwise until it snaps into place. The red, yellow
and green LEDs blink in sequence to show that the unit is on.
Testing the connection
1 Wait 15 s. Press the test/hush button and
release it when the alarm sounds. The CO
alarm transmits a radio signal to the receiver.
2 The orange and red LEDs on the Visit receiver
blink alternately to show that the signal was
received. In addition, it starts to sound, ash
or vibrate depending on the receiver.
Note: The alarm will stop sounding after the
button is released and the Visit receiver will time
out in about a minute.
1 2
1 2 3
3 4