Maintenance / Repair
8
Faults
101
Building Technologies
A6V10334410_h_en_--
Fire Safety
2015-09-29
8.11
Faults
Faults are signaled on the front indicator. If there is any uncertainty, we
recommend carrying out an LED and buzzer test.
During the test, the following is checked:
Function test of the detector indicator
LED light test in three brightness levels
Sound of the buzzer at three different sound levels
The test is activated with the
button and the result indicated with the
LEDs.
The aspirating smoke detector is ready for use.
Press the button for 5 seconds.
The LED and buzzer test is carried out. The test is automatically
undertaken in three stages.
– Stage 1: All the LEDs light up consecutively for one second at full
brightness. The buzzer sounds loudly.
– Stage 2: All the LEDs light up consecutively for one second at reduced
brightness. The buzzer sounds quieter.
– Stage 3: All the LEDs light up consecutively for one second at faint
brightness. The buzzer sounds quietly.
The fault indicator
lights up briefly. If a fault is present, the
corresponding LED indicator lights up at the same time for 3 seconds for Fault
The indicators go out once the test has been completed successfully.
If a fault is present, the fault indicator flashes.
During normal operation, the three green LEDs light up.
Normal operation, green LEDs light up
