First Alert FA1220CV technical manual Maintaining Your System

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Taking Care of Your System

Replacing

Batteries in

Wireless Sensors

Wireless sensors may not have been used in your security system

MAINTAINING YOUR SYSTEM

The components of your security system are designed to be as free of maintenance as possible. However, there are some things you can do to make sure that your system is in reliable working condition.

1.Test your system weekly.

2.Test the system after any alarm occurs (see TESTING THE SYSTEM).

Each wireless sensor in your system has a 9 volt or 3 volt battery. The system detects a low battery in any wireless sensor, including smoke detectors, the optional personal emergency transmitter, and the optional portable wireless keypad. (A low battery in a portable wireless keypad is detected as soon as one of its keys is pressed, and the keypad will display 64.)

Alkaline batteries provide a minimum of 1 year of operation, and in most units and applications, provide 2–4 years of service (4-7 years in units using 3 volt lithium batteries). Actual battery life will depend on the environment in which the sensor is used, the number of signals that the transmitter in the sensor has had to send, and the specific type of sensor. Factors such as humidity, high or low temperatures or large swings in temperature, may all lead to the reduction of actual battery life in an installation.

If you have a low battery in a wireless sensor, a low battery message is displayed on the keypad.

In addition, a battery-operated smoke detector with a low battery also emits a single "chirp" sound once approximately every 20-30 seconds, identifying itself as the smoke detector with the weak battery. If you do not replace a smoke detector's lowbattery, the smoke detector may sound continuously, as if there were a fire alarm.

Note: The low battery message comes on as a warning that battery replacement in indicated sensor(s) is due within 30 days. In the meantime, the sensor(s) causing the low battery indication is still fully operational.

Important: Use only batteries recommended by your installer as replacement.

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