UTC Fire & Security Americas Corporation Inc 929A-CO User Manual

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Operation characteristics 
Table 1: Operation characteristics 
 
LED Display 
Alarm sound 
Unit 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. 
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. 
 
P/N 466-2393 • REV 00.15 • ISS 07DEC10 
 
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