P/N 1036525-EN • REV F
5 / 8
Understanding the LED
The LED on the detector indicates the status of the detector as
follows.
•
Flashing every 9 seconds = Normal operation
•
On = Detects smoke, sending an alarm
•
Off or flashing once every 1.5 seconds = Trouble or
maintenance is required. Test the detector. See
“Sensitivity testing” below.
Smoke testing
Smoke detectors should be tested in place annually using one
of the following methods:
•
Use Smoke! In A Can (P/N SM-200), a canned aerosol
simulated smoke, and follow the directions on the can.
•
Hold a smoldering punk or cotton wick close to the unit
and gently direct the smoke into the detector for 20
seconds or until an alarm is indicated.
Be sure to extinguish the smoke source after testing!
The detector LED should stay on and an alarm should be
indicated at the control panel. Use the system reset switch to
reset the detector.
Sensitivity testing
The detector provides a sensitivity test that allows you to check
the detector sensitivity using a test magnet and the LED
indicator on the detector as follows:
1. Hold the test magnet up to the raised TEST letters on the
top of the detector for 2 seconds. See Figure 9. Once the
test starts, the alarm LED flashes one to nine times.
2. Count the number of times the LED flashes and use the
following table to determine the status of the detector
sensitivity and what action to take, if any.
Flashes Indication
Action
0 to 1
Unserviceable
hardware fault
Reset and rerun the sensitivity test. If
the error persists, replace the unit.
2 to 3
Unit is becoming
insensitive
Clean and reset the unit. Rerun the
sensitivity test. If the error persists,
replace the unit.
4 to 7
Unit is within normal
sensitivity range
N/A
8 to 9
Unit is becoming
too sensitive
Verify that the optical chamber is
snapped down securely. Clean the
unit.
After the test:
•
If the sensitivity is within limits and all other tests pass, the
detector goes into alarm and must be reset from the
control panel.
•
If the sensitivity is not within limits or an unserviceable
hardware fault has been detected, the detector LED
flashes every 1.5 seconds until the detector is serviced.
Figure 9: Testing the detector
Cleaning the detector
Clean the detector cover with a dry or damp (water) cloth as
needed to keep it free from dust and dirt.
When necessary, clean the detector interior and replace the
optical chamber as follows:
1. Disconnect the alarm notification appliances, service
release devices, and extinguishing systems.
2. Slide a flat-blade screwdriver into the slot on the detector
cap and gently push the handle down to pry the cap up
and off. See Figure 10.
3. Press in on the sides of the optical chamber and pull it up
and away from the detector and discard. See Figure 11.
4. Use a vacuum to remove dust and dirt from the optical
chamber base.
5. Line the new optical chamber up with the optical chamber
base and snap it down into place.
6. Replace the detector cap as follows:
a. Line the tabs on the cap with the slots on the detector.
b. Insert the cap into the smoke detector and turn
clockwise approximately 15 degrees. It should snap firmly
into place.
7. Test the detector sensitivity (See “Sensitivity testing”
above).
8. Reconnect all alarm notification appliances, service
release devices and extinguishing systems.
Note:
The control panel alarm and all auxiliary functions
should be verified for a complete test of the system.
Figure 10: Removing the detector cap
