System Sensor 1151 Low Profile - Manual (Page 2)

D100-51-00 2 I56-546-08R
3. After all detectors have been installed, apply power to
the control unit.
4. Test the detector as described under TESTING.
5. Reset the detector at the system control panel.
6. Notify the proper authorities that the system is in opera-
tion.
CAUTION
Dust covers are an effective way to limit the entry of dust
into smoke detector sensing chambers. However, they may
not completely prevent airborne dust particles from enter-
ing the detector. Therefore, System Sensor recommends the
removal of detectors before beginning construction or other
dust producing activity. Be sure to remove dust covers from
any sensors that were left in place during construction as
part of returning the system to service.
CAUTION
Smoke detectors are not to be used with detector guards
unless the combination has been evaluated and found
suitable for that purpose.
Testing
Detectors must be tested after installation and following
periodic maintenance. However, before testing, notify the
proper authorities that the smoke detector system is under-
going maintenance and the system will be temporarily out
of service. Disable the zone or system undergoing mainte-
nance to prevent unwanted alarms.
In addition, check to ensure that the LEDs blink. If they do
not, power has been lost to the detector (check the wiring),
or it is defective (return for repair).
Test the sensors as follows:
A. Test Magnet (p/n M02-04-01 or M02-09-00)
1. Test the sensor by positioning the optional test mag-
net against the sensor plastic just to the left of LED1
(Figure 1).
Figure 1. Bottom and side views showing position of test magnet:
2. Both LEDs should latch on within 30 seconds,
indicating an alarm and annunciating the panel.
B. Calibrated Sensitivity Test (MOD400R)
Use the MOD400R Test Module with a digital or ana-
log voltmeter to test calibrated detector sensitivity as
described in the test module manual.
C. Aerosol Generator (Gemini 501)
Set the generator to represent 4%/ft. to 5%/ft. obscura-
tion as described in the Gemini 501 manual. Use the
bowl shaped applicator to apply aerosol to the sensor. It
should alarm within 30 seconds.
Notify the proper authorities that the system is back on
line. Detectors that fail these tests should be cleaned as
described under MAINTENANCE and retested. If the detec-
tors still fail these tests they should be returned for repair.
Maintenance
Before cleaning, notify the proper authorities that the sys-
tem is undergoing maintenance and will be temporarily
out of service. Disable the system to prevent unwanted
alarms.
1. Remove the sensor to be cleaned from the system.
2. Remove the sensor cover. Use a small standard screw-
driver to release each of four cover removal tabs
that hold the cover in place.
3. Vacuum the outside of the screen carefully without
removing it.
4. Remove the sensor screen. Pull the screen straight away
from the sensing chamber until it snaps out of place.
Replacement screens are available.
5. Use a vacuum cleaner or clean, compressed air to remove
dust and debris from the sensing chamber.
6. Reinstall or replace the sensing chamber screen by slid-
ing the edge without the tabs over the sensing chamber.
Make sure that one of the Screen Contacts touches the
PC Board Contact.
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