User's Manual

AT&T. All Rights Reserved. 5 P/N 0000 – Rev. A – 10 Oct 11
FCC ID: QNP- 433CO
IC: 4676A-433CO
Operation Characteristics
Table 1: Operation characteristics
LED Display
Alarm Sound
Units Status
Control Panel
Status
Recommendation
Normal operation
Green Power LED
flashes every 30
seconds.
None.
Normal DC
operation (sensing
no CO) and with
good batteries.
Normal operating
condition.
None.
Carbon monoxide alarm
Red Alarm LED
flashes with beeps.
Four quick beeps, 5
seconds silence,
repeating.
Alarm condition.
Dangerous
concentrations of
CO detected.
Alarm condition.
See “Alarm procedure” on page 8.
Low battery / low
battery hush
Red Alarm LED
flashes every 60
seconds.
One quick beep
every 60 seconds.
Batteries need to be
replaced.
Trouble condition,
trouble beeps every
60 seconds.
Replace all three AA batteries.
Press Test/Hush button and release.
This will silence the low battery audible
chirp between 8 and 11 hours allowing
for a more convenient time to replace
the batteries.
Alarm end-of-life
indicator
Red Alarm LED
flashes two times
every 30 seconds.
Two quick beeps
every 30 seconds.
End of CO Alarm
life.
Trouble condition,
trouble beeps every
60 seconds.
Press the Test/Hush button and
release. This will silence the end-of-life
signal for up to three days. After three
days, the unit will resume end-of-life
chirps. Hush mode will silence the
alarm ten times or up to 30 days. After
30 days, the unit can no longer be
hushed. Replace the CO Alarm
immediately. The unit will not respond
to CO.
Trouble/service alarm
Red Alarm LED
flashes every 30
seconds.
One quick beep
every 30 seconds.
Unit is in trouble
condition.
Trouble condition,
trouble beeps every
60 seconds.
Replace batteries. If condition
continues, unit has malfunctioned.
Replace immediately. Unit will not
respond to CO.
Error condition
Red Alarm LED
constantly on.
Constant alarm.
Very low battery or
unit malfunction.
Trouble condition,
trouble beeps every
60 seconds.
Replace batteries. If condition
continues, unit has malfunctioned.
Replace immediately. Unit will not
respond to CO.
Test mode
Red Alarm LED
flashes with beeps.
Four quick beeps, 5
seconds silence,
repeated once.
Normal operation
when Test/Hush
button is pressed.
Sensor test mode
CO not detected. Alarm for test
purposes only.
Tamper
Red Alarm LED
flashes every 30
seconds.
One quick beep
every 30 seconds.
Unit is in tamper
condition.
Trouble condition,
trouble beeps every
60 seconds.
Place alarm body back onto mounting
plate. If condition continues, unit has
malfunctioned. Replace immediately.
Maintenance tips
To keep your alarm in good working order:
• Perform a CO Alarm test once a week (see “Normal
CO Alarm test” on page 3).
• Vacuum the alarm cover once a month to remove
accumulated dust.
• Never use detergents or solvents to clean the alarm.
Chemicals can permanently damage or temporarily
contaminate the sensor.
• Avoid spraying air fresheners, hair spray, paint, or
other aerosols near the alarm.
• Do not paint the unit. Paint will seal the vents and
interfere with proper sensor operation.
• Move the CO Alarm to a remote location, to prevent
possible damage or contamination of the sensor,
prior to performing any of the following:
• Staining or stripping floors or furniture, painting
or wall-papering.
• Using aerosols or adhesives.
WARNING: Reinstall the CO Alarm as soon as possible
to assure continuous protection.
• The following is a list of substances that at high
levels can damage the CO sensor or cause
temporary readings that are not CO readings:
• Ethylene, ethanol, alcohol, iso-propanol,
benzene, toluene, ethyl acetate, hydrogen,
hydrogen sulfide, and sulfur dioxide.
• Also most aerosol sprays, alcohol-based
products, paint, thinner, solvent, adhesive, hair
spray, after shave, perfume, auto exhaust (cold
start), and some cleaning agents.