Sensor And Controller Tests; Sensor Alarm Test; Controller Alarm Test; Dirty Controller Test - Carrier WeatherMaster 50HCQ04-12 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 that you use a field provided SD-
MAG test magnet.
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an unnecessary
evacuation of the facility.
This test places the duct detector into the alarm state. Un-
less part of the test, disconnect all auxiliary equipment from
the controller before performing the test. If the duct detec-
tor is connected to a fire alarm system, notify the proper au-
thorities 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 initi-
ate and indicate an alarm state.
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an unnecessary
evacuation of the facility.
This test places the duct detector into the alarm state. Un-
less part of the test, disconnect all auxiliary equipment from
the controller before performing the test. If the duct detec-
tor is connected to a fire alarm system, notify the proper au-
thorities 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.

Dirty Controller Test

The dirty controller test checks the controller's ability to initi-
ate a dirty sensor test and indicate its results.
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT can 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 abil-
ity to compensate for gradual environmental changes. A sensor
that can no longer compensate for environmental changes is
considered 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 11.
OPERATIONAL TEST ALERT
Failure to follow this ALERT can 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 11 — Dirty LED Test
FLASHES
1 0-25% dirty. (Typical of a newly installed detector)
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.
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an unnecessary
evacuation of the facility.
Changing the dirty sensor test operation will put the detec-
tor into the alarm state and activate all automatic alarm re-
sponses. Before changing dirty sensor test operation, dis-
connect all auxiliary equipment from the controller and no-
tify the proper authorities if connected to a fire alarm
system.
Changing the Dirty Sensor Test
By default, sensor dirty test results are indicated by:
• The sensor's Dirty LED flashing.
• The controller's Trouble LED flashing.
• 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.
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).
30
NOTICE
DESCRIPTION
25-50% dirty
51-75% dirty
76-99% dirty
NOTICE