Bosch Appliances F220-B6RS 4.2Set Detector Modes, 4.2.1Test Mode, 4.2.2Sensitivity Mode

F220 Series Detectors with F220-B6RS Bases Install the Detector Heads en 23

4.2Set Detector Modes

The F220 Series Smoke Detectors feature a unique magnet-operated sensitivity mode and detector test mode.

4.2.1Test Mode

Test the detector by placing the magnet next to the T mark on the mounting skirt for three consecutive flashes to cause an alarm.

4.2.2Sensitivity Mode

If the magnet is next to the T mark for less than three flashes but more than one flash, the detector enters Sensitivity Mode.

1.Place the detector into Sensitivity Mode.

2.Wait for the first single green LED flash.

3.Count the number of red LED flashes that follow and refer to Table 4.1 on page 23 for sensitivity definitions.

Number of	Sensitivity Definition (% Obscuration)
Red Flashes
1	Malfunctioning smoke or heat detector
3	Normally operating smoke or heat detector with
	little or no dirt contamination
4 to 6	Progressively more contamination
7 to 10	Trouble condition, very dirty but still
	compensated to 3%/ft (3%/ft = 0.433 db/m);
	Sensitivity < 3% at 10 flashes.
11	Sensitivity < 2.5%/ft (2.5%/ft = 0.36 db/m)
12	Sensitivity < 2.0%/ft (2.0%/ft = 0.287 db/m),
	chance of false alarm increases
13	Sensitivity < 1.5%/ft (1.5%/ft = 0.214 db/m)
14	Sensitivity < 1.0%/ft (1.0%/ft = 0.143 db/m),
	chance of false alarm greatly increases
15	Sensitivity < 0.5%/ft (0.5%/ft = 0.071 db/m),
	false alarm likely

Table 4.1 Red LED Flash Definition

4.The detector exits sensitivity mode and returns to one green LED flash every eight seconds.

Bosch Security Systems, Inc. Installation Manual F.01U.029.847 -01 2007.02