BRK Fire Alarm and CO2 dectectors (models 7030BSLA) - Newly Installed detector chirps 5 times and green light flashes once per second

BRK Fire Alarm and CO2 dectectors (models 7030BSLA) - Newly Installed detector chirps 5 times and green light flashes once per second

Issue: Newly purchased and installed detectors chirps 5 times and green light flashes once per second which indicates that the alarm is end of life.
Applicable Model: 7030BSLA, 7020BSLA

Resolution: 
1) If using the old mounting bracket. On the back of the unit, locate the white switch. It may be above the logo. Manually flip the switch to the right to activate the unit.
2) Change the mounting bracket to the one provided with the new unit to ensure the switch gets switched while installing.