Sensor And Controller Tests - Bryant Preferred 551J Service And Maintenance Instructions

Sensor and Controller Tests

SENSOR ALARM TEST
The sensor alarm test checks a sensor's ability to signal an alarm
state. This test requires the use of a field-provided SD-MAG test
magnet.
IMPORTANT: Failure to follow this NOTICE may 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.
CONTROLLER ALARM TEST
The controller alarm test checks the controller's ability to initiate
and indicate an alarm state.
IMPORTANT: Failure to follow this NOTICE may 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.
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.
Fig. 34 — Typical Smoke Detector System Wiring
28
B
DIRTY CONTROLLER TEST
The dirty controller test checks the controller's ability to initiate a
dirty sensor test and indicate its results.
IMPORTANT: Failure to follow this NOTICE may result in
an unnecessary evacuation of the facility.
Pressing the controller's test/reset switch for longer than
seven seconds will put the duct detector into the alarm state
and activate all automatic alarm responses.
Dirty Controller Test Procedure
1. Press the controller's test/reset switch for two seconds.
2. Verify that the controller's Trouble LED flashes.
DIRTY SENSOR TEST
The dirty sensor test provides an indication of the sensor's ability
to compensate for gradual environmental changes. A sensor that
can no longer compensate for environmental changes is consid-
ered 100% dirty and requires cleaning or replacing. You must use
a field provided SD-MAG test magnet to initiate a sensor dirty
test. The sensor's Dirty LED indicates the results of the dirty test
as shown in Table 6.
IMPORTANT: Failure to follow this NOTICE may result in
an unnecessary evacuation of the facility.
Holding the test magnet against the sensor housing for
more than seven seconds will put the duct detector into the
alarm state and activate all automatic alarm responses.
Table 6 — Dirty LED Test
FLASHES
0-25% dirty.(Typical of a newly installed detector)
1
2
3
4
Dirty Sensor Test Procedure
1. Hold the test magnet where indicated on the side of the
sensor housing for two seconds.
2. Verify that the sensor's Dirty LED flashes.
D
C
F
E
A
48TM502525 D
DESCRIPTION
25-50% dirty
51-75% dirty
76-99% dirty