Kidde KN-COU-B - Manual (Page 16)

LCD display, Operate (Green)
and Alarm (Red) LED shows:
Alarm Sound Unit Status Recommentation
• A steady display of CO
concentration from 10-
999
• Red LED flashes 4 times
with audible beep
4 quick beeps,
5 seconds. silence,
repeating
Alarm condition
Dangerous concentrations
of CO detected
Refer to “Carbon
Monoxide Alarm proce-
dure (inside front cover)
• 10 ppm or greater dis-
played
• Dot flashing every 5 sec-
onds
• Red LED flashes 2 times
every 10 seconds
•Green LED flashes 4
times every 10 seconds
2 quick beeps every
10 seconds,
repeating
Low Level Warning
Low or mid level concen-
trations of CO detected
Refer to “Carbon
Monoxide Alert "proce-
dure (inside front cover)
• "Snd Off" displayed
• Dot flashing every 5 sec-
onds
• Green LED flashes 4
times every 10 seconds
None
Audible chirp in
"Hush" mode
Low Level Warning
in "Hush" mode
Press/Hold test button
for 5 seconds to "Hush"
chirps. Press test button
to disable "Hush"
• 10 ppm or greater dis-
played
• Dot flashing every 5 sec-
onds
• 20 ppm or greater,
Green LED flashes 4
times every 10 seconds
None
Low Level Alert
Low concentrations of CO
detected
Refer to “Carbon
Monoxide Alert " proce-
dure (inside front cover)
• Steady “0” displayed
• Dot flashing every 5
seconds
• Green LED flashes every
30 seconds
None
Normal DC operation
with good batteries
(sensing less than 10
ppm of CO)
None
• Number from 10-999
displayed
None
Peak Level Memory acti-
vated. Highest concen-
tration of CO detected is
displayed
Refer to following sec-
tion for information
regarding Peak Level
Memory
• Brief “888” for approxi-
mately 10 seconds
None
Self test when first
powered up
None – CO has not been
detected. "888" dis-
played to confirm all
segments of display are
operational
• 3 dashes "---" scroll
across display 3 to 4
times
4 quick beeps, 5
secs. silence,
repeating
Test/Reset button is
pressed
None – CO has not been
detected. "---" shown
for test purpose only
• “Lb” flashes alternately
with any number
• Red LED flashes every 60
seconds
One quick beep
every 60 seconds
Batteries need to be
replaced
Replace all three AA bat-
teries immediately
• “Err” displayed One quick beep
every 30 seconds
Unit is Error condition Replace batteries. If
“Err” (or blank display)
continues, unit has mal-
functioned. Replace
immediately. Unit will
not respond to CO
• Display is blank Constant tone Unit malfunction
• “End” displayed
• Red LED flashes two
times every 30 seconds
Two quick beeps
every 30 seconds
End of unit life Replace unit immediate-
ly. Unit will not respond
to CO
The following table illustrates the possible digital displays, describes the
audible alarm patterns, and the recommended actions to take.
Operating and Alarm Characteristics
The problems listed above are under normal operating conditions. Other
“Err” conditions could exist. If you should have any questions regarding
display conditions, call our Product Support.
5. Operating and Alarm Characteristics
(cont.)
2541-7201-01_revB_EN_V1:_ 2013.3.5 11:13 AM Page 16