ii) negative pressure differential resulting from the use of exhaust fans.
iii) Simultaneous operation of several fuel burning appliances compet-
ing for limited internal air.
iv) Vent pipe connections vibrating loose from clothes dryers, boilers or
water heaters.
v) Obstructions in or unconventional vent pipe designs which can
amplify the above situations.
2) Extended operation of unvented fuel burning devices (cooker, oven, fire-
place, etc.).
3) Temperature inversions which can trap exhaust near the ground.
4) Car idling in open or closed garage, or near
the home.
Mounting
Your CO alarm is designed for mounting on
the side wall.
You should fix the back plate provided to the
wall first using screws and rawl plugs.
When the plate is attached, locate the slots
on the back of the alarm with the keys on
the back plate, sliding downward and into
position until the unit clips onto the top of
the alarm.
To remove, press the tab against the wall
and lift the alarm out of the mounting plate.
NOTE: Your 9CO5 or 900-0146 CO alarm is not designed for portability.
9
Peak
Level
Test/
Reset
Operate
Alarm
PPM of CO
Move to Fresh
Air
CARBON M
ONOXIDE
ALARM
C
A
U
TI
O
N:
DO
NO
T PA
INT, ADDITIONAL
MA
RK
IN
G
O
N
B
A
C
K
TEST
RESET
Operate
Alarm
PEAK
LEVEL
EN 50291:2001
Model No.
900-0146-UK
Model No. 900-01
46-UK
CARBON MONO
XIDE ALARM
PPM of Carbon M
onoxide Displayed
Lb = Low Battery
or No Battery
Err = Error Conditi
on
Peak
Level
Test/
Reset
Operate
Alarm
PPM of CO
Move to Fresh
Air
CARBON M
ONOXIDE
ALARM
C
A
U
TI
O
N:
DO
NO
T PA
INT, ADDI
TIONA
L M
AR
KIN
G
O
N
B
A
C
K
TEST
RESET
Operate
Alarm
PEAK
LEVEL
EN 50291:2001
Model No.
900-0146-UK
Model No. 900-01
46-UK
CARBON MONO
XIDE ALARM
PPM of Carbon M
onoxide Displaye
d
Lb = Low Battery
or No Battery
Err = Error Condit
ion
