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Alarm
Power
Test/reset
switch
Trouble
C07298
Fig. 45 -- Controller Assembly
NOTE: All troubles are latched by the duct smoke
detector. The trouble c ondition must be cleared and then
the duct smoke detector must be reset in order to restore it
to the normal state.
Resetting Alarm and Trouble Condition Trips:
Manual reset is required to restore smoke detector systems
to Normal operation. For installations using two sensors,
the duct smoke detector does not differentiate which
sensor signals an alarm or trouble c ondition. Check each
sensor for Alarm or Trouble status (indicated by LED).
Clear the condition that has generated the trip at this
sensor. Then reset the sensor by pressing and holding the
reset button (on the side ) for 2 seconds. Verify that the
sensor’s Alarm and Trouble LEDs are now off. At the
controller, clear its Alarm or Trouble state by pre ssing and
holding the ma nual reset button (on the front cover) for 2
seconds. Verify that the controller’s Alarm and Trouble
LEDs are now off. Replace all panels.
Troubleshooting
Controller’s Tr ouble LED is On
1. Check the Trouble LED on each sensor connected to
the controller. If a sensor’s Trouble LED is on, de-
termine the cause and make the necessary repairs.
2. Check the wiring between the sensor and the control-
ler. If wiring is loose or missing, repair or replace as
required.
Controller’s Tr ouble LED is
Flashing
1. One or both of the sensors is 100% dirty.
2. Determine which Dirty LED is flashing then clean
that sensor assembly as described in the de tector
cleaning section.
Sensor’s Trouble LED is
On
1. Check the sensor’s Dirty LED. If it is flashing, the
sensor is dirty and must be cleaned.
2. Check the sensor’s cover. If it is loose or missing, se-
cure the cover to the sensor housing.
3. Replace sensor assembly.
Sensor’s Power LED is
Off
1. Check the controller’s Power LED. If it is off, de -
termine why the controller does not have powe r and
make the necessary repairs.
2. Check the wiring between the sensor and the control-
ler. If wiring is loose or missing, repair or replace as
required.
Controller ’s Power LED is
Off
1. Ma ke sure the circuit supplying power t o the control-
ler is operati onal. If not, m ake sure JP2 and JP3 are
set correctly on the controller before applying power.
2. Verify that power is applied to the cont roller’s supply
input terminals. If power is not prese nt, replace or re-
pair wiri ng as required.
Remo te Test/Reset Station’s Trouble LED Does
Not
flash When Performing a Dirty Test, But the Contr
ol-
ler’ s Trouble LED
Does
1. Verify that the remote test/station is wired as shown
in Fig. 43. Repair or replace loose or mi ssing wiri ng.
2. Configure the sensor dirty test to activate the control -
ler’s supervision relay. See “To Configure the Dirty
Sensor Test Operation” for details.
Sensor’s Trouble LED is On, But the Controller’
s
Tr ouble LED is
OFF
Remove JP1 on the controller.
548J