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4 TrueAlarm Sensors and Sensor Bases
4.1
Introduction
This chapter contains general notes, specifications, and mounting information about the TrueAlarm Sensors and Sensor Bases.
WARNING: Ensure that the location of each smoke sensor and each heat sensor has been planned according to local and national fire
codes, see NFPA 72.
Smoke sensor sensitivities are set and continuously monitored by the control panel. This functionality complies with NFPA 72. When
functional testing of these sensors is required in accordance with NFPA 72, use the test methods described in
Refer to NFPA 72 for application, test and maintenance requirements.
The 4098-9733, 4098-9734, and 4098-9778 heat sensor, and the 4098-9764 multi-sensor provide a ROR function that is software
programmed and selectable at 15°F, or 8.3°C, and 20°F, or 11.1°C per minute. The 4098-9733, 4098-9764 and 4098-9778 also provide
general temperature monitoring within the range of 32° to 122°F, or 0° to 50°C. The 4098-9734 also provides general temperature
monitoring within the range of 32°F to 150°F, or 0°C to 66°C.
Smoke sensors are not to be used with detector guards unless the combination has been evaluated and found suitable for that purpose.
4.2
4098-9733, 4098-9734, and 4098-9778 spacing
Agency
Program selection
UL
135°F / 190°F (57°C / 88°C)*
UL
155°F (68°C)
FM
135°F / 155°F / 190°F (57°C / 68°C / 88°C)*
FM
135°F / 155°F / 190°F (57°C / 68°C / 88°C)* with 15 or 20°F/min
(8.3 or 11.1°C/min) Rate of Rise
* 190°F (88°C) ratings apply only to the 4098-9734.
page 19
Table 6: 4098-9733, 4098-9734, 4098-9778 spacing
4098 Detectors, Sensors, and Bases Application Manual
Compatibility and
Spacing
60 ft. X 60 ft. (18.3 m X 18.3 m) Ceiling
30 ft. X 30 ft. (9.15 m X 9.15 m) Wall
40 ft. X 40 ft. (12.2 m X 12.2 m) Ceiling
20 ft. X 20 ft. (6.1 m X 6.1 m) Wall
RTI = Quick
20 X 20 ft.
(6.1 X 6.1 m)
RTI = Ultra Fast
50 X 50 ft.
(15.2 X 15.2 m)
testing.
574-709 Rev. AP
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