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Monitoring
The CO alarm self-checks vital functions to ensure that it is operating correctly.
1
Low battery fault – the battery voltage is measured and compared against a low voltage
threshold.
2
Sensor Fault – the sensor is checked for electrical continuity and open circuit.
3
End of life fault – The alarm is programmed to check when the useful life of the alarm has
been exceeded.
Low battery
If the battery is starting to be depleted, the CO alarm beeps, the yellow LED blinks once every
minute and the red LED on the Visit receiver blinks. Replace the CO alarm. The low battery
beeps on the CO alarm can be supressed for 24 hours by pressing the button.
Sensor fault
If a sensor fault has been detected, the CO alarm beeps, the yellow LED blinks twice every
minute and the red LED on the Visit receiver blinks. Replace the CO alarm.
End of life
When the sensor has reached its end of life, the CO alarm beeps, the yellow LED blinks 3 times
every minute and the red LED on the Visit receiver blinks. Replace the CO alarm.
Testing
Frequent testing of the CO alarm is a requirement to ensure that the power is present, and the
unit is functioning. Guidelines and best practices for testing are as follows:
1
After the system is installed.
2
Once monthly thereafter.
3
After prolonged absence from the dwelling (e.g. after a holiday period).
4
After repair or servicing of any of the systems elements or household electrical works.
To test the CO alarm, press and hold the test/hush button. The unit will respond with one of
the following status conditions:
1
The Green LED on the CO alarm blinks and the horn sounds to indicate the unit is powered
and operating correctly. The orange and red LEDs on the Visit receiver blink alternately and
it it starts to sound, flash or vibrate depending on the receiver.
2
If there is a fault condition, the yellow LED on the CO alarm blinks and the horn beeps in
accordance with the
Signal pattern
table on page 28. The red LED on the Visit receiver blinks.
Response to CO gas
The presence of CO gas is indicated by the blinking red led on the unit. We do not recom-
mend testing the alarm with carbon monoxide as the results can be misleading unless
special apparatus is used. However, if testing the unit with CO gas is required, once the red
LED is blinking, indicating the presence of CO gas, momentarily press the test/hush button
and within seconds the horn will sound 2 alarm pattern cycles.
Maintenance
Silencing (Hush)
When the alarm sounds, after sensing CO, pressing the test/hush button will immediately stop
the horn (the red LED will continue to blink). If CO is still present, the horn will turn on again
after about 4 minutes. The CO alarm can only be silenced once during a CO incident. At levels
> 150ppm CO the unit cannot be silenced.
Cleaning the CO alarm
Clean the outside case by occasionally wiping with a clean damp cloth.
Do not use any cleaning agents, bleaches, detergents or polishes, including those in
aerosol cans. Avoid spraying air fresheners, hair spray, paint or other aerosols near the CO
alarm. Do not place air fresheners near the CO alarm.
Summary of Contents for BE1555
Page 1: ...BE1555 VISIT CO DETECTOR...
