Fireaway Inc.
Version 1
5852 Baker Road
10/2017
Minnetonka, MN 55345
P/N 19112
12
f. Spot Thermal Detection
(various part numbers)
Figure 12 - Spot Thermal Sensor
Spot thermal detectors allow for continuous thermal monitoring of limited coverage
areas. Field wiring connecting the SDRP to spot thermal sensors wired in parallel allow
an electrical current to flow through the detection circuit, through an end of line device
completing a loop back to the SDRP. If a fire occurs, the normally open contacts in the
spot thermal close. This change in electrical resistance is interpreted by the SDRP as a
fire condition. The SDRP sends an electrical signal to the Stat-X generator(s) which
causes a system discharge. Spot thermal detectors are available with alarm temperature
ratings of 135
o
F and 194
o
F and must be terminated with PN 830007 EOL. The spot
thermal detectors are rated for a variety of environments including Vertical Interior,
Vertical All Weather, Vertical ½” Conduit and Explosion Proof.
