Specifications

10
To Configure the Dirty Sensor Test Operation
1. Hold the test magnet where indicated on the side of the
sensor housing until the sensor’s Alarm LED turns on and
its Dirty LED flashes twice (approximately 60 seconds).
2. Reset the sensor by removing the test magnet then holding
it against the sensor housing again until the sensor’s Alarm
LED turns off (approximately 2 seconds).
Remote Station Test
The remote station alarm test checks a test/reset station’s ability to
initiate and indicate an alarm state.
OPERATIONAL TEST HAZARD
Failure to follow this caution may result in personnel and
authority concern.
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.
CAUTION
!
SD--TRK4 Remote Alarm Test Procedure
1. Turn the key switch to the RESET/TEST position for seven
seconds.
2. Verify that the test/reset station’ s Alarm LED turns on.
3. Reset the sensor by turning the key switch to the
RESET/TEST position for two seconds.
4. Verify that the test/reset station’ s Alarm LED turns off.
Remote Test/Reset Station Dirty Sensor Test
The test/reset station dirty sensor test checks the test/reset station’s
ability to initiate a sensor dirty test and indicate the results. It must
be wired to the controller as shown in Fig. 8 and configured to
operate the controller’s supervision relay. For more information,
see “Changing sensor dirty test operation.”
OPERATIONAL TEST HAZARD
Failure to follow this caution may result in personnel and
authority concern.
If the test/reset station’s key switch is left in the RESET/TEST
position for longer than seven seconds, the detector will
automatically go into the alarm state and activate all automatic
alarm responses.
CAUTION
!
OPERATIONAL TEST HAZARD
Failure to follow this caution may result in personnel and
authority concern.
Holding the test magnet to the target area for longer than seven
seconds will put the detector into the alarm state and activate
all automatic alarm responses.
CAUTION
!
Dirty Sensor Test Using an SD--TRK4
1. Turn the key switch to the RESET/TEST position for two
seconds.
2. Verify that the test/reset station’s Trouble LED flashes.
DETECT OR CLEANING
Cleaning the Smoke Detector
Clean the duct smoke sensor when the Dirty LED is flashing
continuously or sooner if conditions warrant.
OPERATIONAL TEST HAZARD
Failure to follow this caution may result in personnel and
authority concern.
If the smoke detector is connected to a fire alarm system, first
notify the proper authorities that the detector is undergoing
maintenance then disable the relevant circuit to avoid
generating a false alarm.
CAUTION
!
1. Disconnect power from the duct detector then remove the
sensor’s cover. (See Fig. 12.)
2. Using a vacuum cleaner, clean compressed air, or a soft
bristle brush, remove loose dirt and debris from inside the
sensor housing and cover.
Use isopropyl alcohol and a lint--free cloth to remove dirt
and other contaminants from the gasket on the sensor’ s
cover.
3. Squeeze the retainer clips on both sides of the optic housing
then lift the housing away from the printed circuit board.
4. Gently remove dirt and debris from around the optic plate
and inside the optic housing.
5. Replace the optic housing and sensor cover.
6. Connect power to the duct detector then perform a sensor
alarm test.
Airow
HVAC duct
Sampling
tube
Retainer
clip
Optic
plate
Optic
housing
Sensor
housing
C07305
Fig. 12 -- Sensor Cleaning Diagram
HKRNKA