User manual

Maintenance and cleaning

8 Maintenance and cleaning

To ensure operational liability of the smoke alarm, the device has to be

maintained at least once a month. To do this, proceed as follows:

• Wipe the housing with a slightly damp cloth if necessary.

• Shortly press the operating button to perform a function test.

• If the alarm sound is triggered 3 times, the LED ashes red and the

escape light ashes at the same time, the smoke alarm is working

correctly.

• If no alarm sound is triggered or no visual signal can be detected, the

device is defective and has to be replaced.

9 Battery life

The smoke alarm is powered by a permanently sealed lithium battery

with a typical lifetime of 10 years. Batteries cannot be replaced.

The battery life of typically 10 years can only be enabled under

the following conditions:

• A max. number of 52 function tests and one alarm for 60 sec. may be

performed per year.

• The operating ambient temperature of +5° to +30°C has to be main-

tained.