When the CO alarm senses a dangerous level of CO, the unit will
emit a loud alarm pattern. The alarm pattern is rapid and pulsing.
This alarm pattern will continue for the first 4 minutes after
detecting CO then, the cycle will repeat every one minute. Know
how to respond to a CO emergency. Periodically review this
user’s guide and discuss with all members of your family.
WHAT TO DO WHEN THE ALARM SOUNDS
1) Open the doors and windows to ventilate.
2) Turn off the appliance where possible and stop using
the appliance.
3) Evacuate the property leaving the doors and windows
open. A latching alarm will need to be reset in
accordance with the user instructions.
4) Call British Gas on 0800 111 999.
5) Do no re-enter the property until the alarm has
stopped.
6) Get medical help immediately for anyone suffering the
effects of carbon monoxide poisoning (headache,
nausea), and advise that carbon monoxide poisoning
is suspected.
7) Do not use the appliance again until it has been
checked by an expert. In the case of gas appliances
this must be a CORGI registered installer.
18
What To Do If The Alarm Sounds
▲
!
WARNING:
Actuation of your CO
Alarm indicates the presence of Carbon
Monoxide (CO) which can KILL YOU.
Battery Replacement/Installation Instructions
To install or replace the batteries in your Nighthawk unit please
perform the following steps:
1. Gently slide open
the lower half of
the front cover to
expose the battery
compartment.
2. Remove the old
batteries and
properly dispose of
them as
recommended by
the battery manufacturer (see figure 17).
3.
Reinstall the new batteries, being careful to seat
the red battery warning flags in the recess of the
battery well.
Also, note the polarity illustration in the
bottom of the battery compartment. The unit will chirp
and display for approximately one minute and
return to normal operation.
4. Gently close the bottom cover.
The bottom cover of
your CO alarm will NOT close if all three AA
batteries are not installed.
17
Battery Installation/Replacement
(cont.)
N I G H T H A W K
Test/
Reset
Operate
Pe
ak
Lev
el
Alarm
CARBO
N
M
O
NO
XID
E
ALARM
Figure 17
Benelux Guide 21/8/01 2:15 pm Page 17
