If necessary it is possible to further secure or tamperproof the Alarm by using a No.2
or No.4 (2 to 3mm diameter - not supplied) self tapping screw 6 to 8mm long to firmly
lock the Alarm and its mounting plate together (see figure 7).
5. Testing / Monitoring & Maintenance
Testing
Frequent testing of the system is a requirement to ensure its continued and safe
operation. To test the alarm press the hold the test button.
The Green LED will flash and the horn will sound to indicate the alarm is operating
correctly.
Guidelines and best practices for testing are as follows
1. After the system is installed
2. Once weekly thereafter
3. After prolonged absence from the dwelling (.e.g. after holiday period)
4. After repair or servicing of any of the systems elements or household electrical
works.
Silencing (Hush)
When the Alarm sounds, after sensing CO, pressing the test/hush button will
immediately stop the horn (the red light will continue to flash). If CO is still present the
red light and the horn will turn on again after about 4 minutes. The unit can only be
silenced once during a CO incident. At levels > 150ppm CO the unit cannot be silenced.
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