8 Conventional Products—6424 Projected Beam Type Smoke Detector
c eilgph1
1 ft.
1/2 S
S
W a ll
Figure 1: Spacing for Smooth Ceiling--Side View
c e ilgph3
3 0 ft. M in
3 3 0 ft. M a x
T X
R X
T X
R X
S
1 /2 S M ax
1 /4 S
M a x
Figure 2: Spacing for Smooth Ceiling--Top View
In the case of peaked or sloped ceilings, codes may specify spacing of
detectors by using horizontal spacing from the peak of the roof or ceiling.
Figures 3 and 4 show the spacing for both the shed type and peaked type
sloped ceilings.
ce ilgph4
S
3 ft. M a x
S
1 /2 S M a x
T X
R X
