Kidde Fire Systems DS Series, Application Manual

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July 2016 -11- K-76-1000
Figure 2 below shows that the square areas of coverage, A, B, and C, are all within the detector's circle of
coverage.
Figure 2. Heat Detector’s Circle of Coverage
Since all of the area within the detector’s circle of coverage is suitable for detecting a fire, the shape and
dimensions of the detector coverage “square” in Figure 3 may be modified. Note that, although the
coverage “square” is now a “rectangle,” the coverage area remains within the overall detector circle of
coverage.
Figure 3. Heat Detector Spacing, Rectangular Areas
1. Based on 50 ft. listed
spacing
Note: Smoke detectors are not listed for spacing
A
B
C
25 ft. x 34 ft. = 850 ft.² (7.6 m x 10.4 m = 79 m²)
20 ft. x 37 ft. = 740 ft.² (6.1 m x 11.3 m = 69 m²)
15 ft. x 39 ft. = 585 ft.² (4.6 m x 11.9 m = 54 m²)
10 ft. x 41 ft. = 410 ft. ² (3.1 m x 12.5 m = 38 m²)
30 ft. x 30 ft. = 900 ft.² (9.1 m x 9.1 m = 84 m²)
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