Sensor And Controller Tests; Sensor Alarm Test; Controller Alarm Test; Dirty Controller Test - Carrier 48FC M20 Series Service And Maintenance Instructions

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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.
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.
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.
Fig. 41 — Typical Smoke Detector System Wiring
UCB

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.
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.

Dirty Controller Test

The dirty controller test checks the controller's ability to initiate a
dirty sensor test and indicate its results.
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