4098 Heat Detectors; Specifications - Simplex 4098 Applications Manual

4098 HEAT DETECTORS

Heat Detector Types

Specifications

This section contains general notes, specifications, and mounting information for
the heat detectors shown in Table 3.
WARNING: Heat detectors are NOT life-safety devices; USE HEAT
DETECTORS FOR PROPERTY PROTECTION ONLY! For
life-safety requirements, use smoke detectors.
General Notes:
1. For all heat detectors, provide electronic supervision with battery back-up at
the fire alarm control panel.
2. Where the possibility of positive airflow from the electrical conduit/junction box
exists, seal the conduit openings with 3M Weatherban #606 (or equivalent), a
non-flammable sealing compound.
3. Refer to NFPA 72 for application, test, and maintenance requirements.
Fixed Temperature Heat Detectors
Simplex electronic fixed temperature heat detectors use a fast response, thermistor
based design to provide temperature sensing that quickly, accurately, and
consistently identifies when fixed temperatures are exceeded. For this reason, the
fixed temperature detectors are recommended for most applications. With a UL
spacing distance of 60 X 60 feet, the fixed temperature electronic heat detectors
will replace both mechanical fixed as well as mechanical ROR heat detectors.
ROR Temperature Heat Detectors
Simplex electronic rate-of-rise heat detectors detect fixed temperature alarm
thresholds the same as the fixed temperature heat detectors, plus detect a rate-of-
rise alarm with a patented rate-of-rise detection design that can quickly respond to
sudden temperature variations. Due to the nature of the fast response to
temperature changes, care must be taken for proper installation of ROR heat
detectors. Rate-of-rise heat detectors should be installed in stable environmentally
controlled areas. These detectors must not be installed where hot or cold air can be
blown on them (near ductwork, industrial equipment, air vents etc.). Rate-of-rise
detectors should not be installed where more then 12 deg. F per minute
temperature changes can normally occur.
FEATURES:
•
Rate-of-Rise and Fixed Temperature (see Table 3)
•
Alarm LED
•
Compatible with 2-Wire Initiating Device Circuits
•
Current-Limited Alarm State
ELECTRICAL SPECIFICATIONS:
•
Typical Standby Current - 80 Microamps
•
Typical Alarm Current - 40 Milliamps
•
Maximum Current - 80 Milliamps while in alarm state
•
Operating Range - 15-32 VDC
•
Maximum Ripple Voltage Allowed - 30%
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