Detector Cleaning - Carrier 50TCA04-A07 Service And Maintenance Instructions

Changing the Dirt Sensor Test
By default, sensor dirty test results are indicated by:
S The sensor's Dirty LED flashing.
S The controller's Trouble LED flashing.
S The controller's supervision relay contacts toggle.
The operation of a sensor's dirty test can be changed so
that the controller's supervision relay is not used to
indicate test results. When two detectors are connected to
a controller, sensor dirty test operation on both sensors
must be configured to operate in the same manner.
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.
CAUTION
!
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
performing the test.
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. 24 and configured to operate the controller's
supervision relay. For more information, see "Changing
sensor dirty test operation."
proper authorities before
Fig. 24 - - Remote Test/Reset Station Connections
CAUTION
!
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.
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.

DETECTOR CLEANING

Cleaning the Smoke Detector
Clean the duct smoke sensor when the Dirty LED is
flashing continuously or sooner if conditions warrant.
18
C08247