33
FIOP Smoke Detector Wiring and Response
ALL UNITS
The FIOP smoke detector is configured to automatically shut
down all unit operations when a smoke condition is detected. See
Fig. 47, Smoke Detector Wiring.
SEE HIGHLIGHT A (SEE FIG. 47)
Smoke detector NC contact set will open on smoke alarm condi-
tion, de-energizing the ORN conductor.
HIGHLIGHT B (SEE FIG. 47)
24-v power signal using the ORN lead is removed at the smoke
detector input on UCB; all unit operations cease immediately.
ADDITIONAL APPLICATION DATA
Refer to the application data document “Factory Installed Smoke
Detectors for Small and Medium Rooftop Units 2-25 Tons” for
discussions on additional control features of these smoke detectors
including multiple unit coordination.
SENSOR AND CONTROLLER TESTS
Sensor Alarm Test
The sensor alarm test checks a sensor’s ability to signal an
alarm state. This test requires use of a field provided SD-MAG
test magnet.
SENSOR ALARM TEST PROCEDURE
1. Hold the test magnet where indicated on the side of the
sensor housing for seven seconds.
2. Verify that the sensor’s Alarm LED turns on.
3. Reset the sensor by holding the test magnet against the
sensor housing for two seconds.
4. Verify that the sensor’s Alarm LED turns off.
Controller Alarm Test
The controller alarm test checks the controller’s ability to initiate
and indicate an alarm state.
Controller Alarm Test Procedure
1. Press the controller’s test/reset switch for seven seconds.
2. Verify that the controller’s Alarm LED turns on.
3. Reset the sensor by pressing the test/reset switch for two
seconds.
4. Verify that the controller’s Alarm LED turns off.
Dirty Controller Test
The dirty controller test checks the controller’s ability to initiate a
dirty sensor test and indicate its results.
Fig. 47 — Typical Smoke Detector System Wiring
IMPORTANT: Failure to follow this ALERT can result in
an unnecessary evacuation of the facility.
This test places the duct detector into the alarm state. Unless
part of the test, disconnect all auxiliary equipment from the
controller before performing the test. If the duct detector is
connected to a fire alarm system, notify the proper authorities
before performing the test.
IMPORTANT: Failure to follow this ALERT can result in
an unnecessary evacuation of the facility.
This test places the duct detector into the alarm state. Unless
part of the test, disconnect all auxiliary equipment from the
controller before performing the test. If the duct detector is
connected to a fire alarm system, notify the proper authorities
before performing the test.
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