K-76-1000
-10-
July 2016
HEAT DETECTOR SPACING
Do not install heat detectors in areas with an ambient temperature above 100.4° F (38°C). When
determining detector placement, consider ceiling height, construction, and ventilation as these affect a
detector’s performance.
A heat detector’s listed spacing rating is based on detector installation on a flat smooth ceiling that is 10
ft. (3 m) high. The spot-type listed spacing equates detector operation with the opening of a standard
sprinkler head within 2 minutes (±10 seconds) located 10 ft. (3 m) from the same fire.
Detector spacing is shown in Figure 1 below.
Figure 1. Listed Spacing for DS-HFS Heat Detector
Detector coverage is typically represented as a square because most structures have flat sidewalls. Actual
detector coverage is a circle whose radius is 0.7 times the listed spacing.
The listed spacing for DS-HFS heat detectors is S = 50 ft. (15.2 m).
1. Heat detector
Listed spacing between detectors (S) = 50 ft. (15.2 m)
Note: Spacing is dependent on the ceiling height
S
S/2
S/2
S/2
S/2
S/2
.7S
.7S
S
S
S
S
S
1
Summary of Contents for DS Series
Page 1: ...K 73 200 Rev AB July 2015 DS Series Addressable Detector Application Guide K 76 1000 ...
Page 2: ......
Page 3: ...July 2016 1 K 76 1000 FOREWORD ...
Page 6: ...K 76 1000 4 July 2016 NOTES ...
Page 7: ...July 2016 5 K 76 1000 OVERVIEW ...
Page 10: ...K 76 1000 8 July 2016 NOTES ...
Page 11: ...July 2016 9 K 76 1000 HEAT DETECTOR SPACING ...
Page 19: ...July 2016 17 K 76 1000 SMOKE DETECTOR SPACING ...
Page 26: ...K 76 1000 24 July 2016 NOTES ...
Page 27: ...July 2016 25 K 76 1000 HEAT DETECTOR APPLICATIONS ...
Page 29: ...July 2016 27 K 76 1000 SMOKE DETECTOR APPLICATIONS ...
Page 31: ...July 2016 29 K 76 1000 AIR DUCT SMOKE DETECTOR APPLICATIONS ...
Page 35: ...July 2016 33 K 76 1000 TESTING AND MAINTENANCE ...
Page 40: ...K 76 1000 38 July 2016 NOTES ...
Page 41: ......