Installation and Operations Manual
AT&T Proprietary (Internal Use Only)
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WARNING:
After seven years from initial power up, this alarm will beep two times every 30
seconds to indicate that it is time to replace the unit. Replace the alarm
immediately! It will not detect CO in this condition.
To help identify the date to replace the alarm, an area has been reserved on the side of
the alarm. Write the “replace by” date (seven years from power up) with a permanent
marker in the area provided.
6.2.3.5 Installing/Replacing Batteries
NOTE:
Place the DLC into sensor test mode prior to replacing the batteries. If the DLC is
not in sensor test mode during battery replacement, an alarm/tamper condition may be
reported.
1. Slide the alarm body off of the mounting plate.
2. If replacing batteries, remove the old batteries and properly dispose of them as
recommended by the battery manufacturer.
3. Install the new Alkaline AA batteries (Duracell MN1500 or MX1500 or Energizer
E91 or equivalent batteries).
4. Note the polarity illustration in the battery compartment, as shown in Figure 50.
Figure 50: Install Batteries in CO Detector
5. Slide the alarm body back onto the mounting plate.
NOTE
: The mounting plate will not close unless all three batteries are installed.
