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Test the unit
To test the alarm, press and hold TEST/SILENCE button (see Figure 2). You should hear
the alarm sound pattern with a corresponding ALARM indicator (red LED) flash and an
alert message is sent to the system's receiver. The alarm sound patterns will stop when
the TEST/SILENCE button is released.
The test alarm sound pattern includes: 4 short beeps followed by 5 seconds of silence.
Repeat the pattern until you release the TEST/SILENCE button.
Notes:
• After the TEST/SILENCE button is enabled, the alarm sounds and the red alarm light flashes.
This does not indicate that CO is present.
• Test the unit weekly! If at any time your unit does not perform as described, replace it immediately.
4. Battery Replacement
When two beeps with a corresponding FAULT indicator (yellow LED) flash twice every
40 seconds, this indicates low battery. Replace the battery with the specified battery,
(see "7. Technical Specifications").
To install or replace the battery in unit, please perform the following steps:
1. Take down the unit from the screw heads on the wall.
2. Open battery compartment.
3. Remove the old battery and replace with a new battery.
4. Check the alarm; the green LED should flash once a second in the first 60 seconds. If
not, remove the battery and put back again.
5. Close the battery compartment.
6. Hook the alarm body over the screw heads onto the keyholes in the back of the unit.
7. Perform a test alarm using the TEST/SILENCE button. If the testing alarm is ok, this
indicates that the product is operating normally.
WARNING! Use only the battery specified. Use of different battery may have
a detrimental effect on the CO detector. A good safety measure is to replace the
battery at least once a year.
Note: Reinstall immediately after cleaning and then test unit using the TEST/SILENCE button!
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