Bosch FAA-440 Serie Guía De Instalación Y Operación página 15

Analog Detectors and Bases
NOTICE!
If any of the sensors fails the functional testing, the detector should be replaced.
Sensitivity Testing
Test the sensitivity of the smoke sensors using the TRUTEST801 Sensitivity Tester for Smoke
Detectors and SMOKE400 Smoke Aerosol.
7 Maintenance
NOTICE!
Notify all concerned parties before any maintenance or testing of the fire alarm system, and
after completion of these activities.
7.1 Cleaning
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Figure 7.1
The can of compressed air is available at office and alarm supply stores.
7.2 Periodic Testing
Keeping the detector calibrated is necessary for proper operation. Depending on local
regulations, calibration testing can be required more than once a year. NFPA-72, The National
Fire Alarm Code, recommends performing calibration tests at installation, then every other
year. Perform functional testing yearly.
If the detector is out of calibration clean it according to Chapter 7.1 .
8 Specifications
These ratings apply to alarm and standby conditions.
NOTICE!
For the proper calculation of the total current consumption, you have to add both the general
current consumption of the head and of the isolator base, if used in the circuit.
Bosch Security Systems, Inc.
At least once a year vacuum or clean/dry with compressed air, the external part of the
detector. Pay particular attention to the screens in dusty areas or heavy insect activity.
To clean the chamber, use a can of clean compressed air. Place the tube or needle valve
through the valve in the bottom of the detector and blow it off with a maximum pressure
of 6 bar (see Figure 7.1).
Shorten the plastic tube that comes with the compressed air to about 2 in. (5 cm). Cut
the tube at an angle.
Installation and Operation Guide
Maintenance | en 15
F.01U.173.498 | 1.3 | 2012.02