7351J Very Intelligent Early Warning (VIEW) Laser Smoke Detector Technical Bulletin
11
When maintenance and all subsequent testing are complete:
1.
Enable the system functions previously disabled for maintenance.
2.
Notify the authorities that the system is back in service.
Use this procedure to clean the detector.
1.
Remove the detector to be cleaned from its mounting base.
2.
Remove the detector cover using a small, standard screwdriver to
release each of four cover removal tabs that hold the cover in place
(see Figure 4).
3.
Carefully vacuum the outside of the assembly screen (the Smoke
Sensing Chamber Cover/Screen in Figure 4) without removing it.
4.
Remove the detector screen assembly by pulling it straight away from
the sensing chamber base (see Table 1).
5.
Use a vacuum or clean compressed air to remove dust and debris from
the sensing chamber.
6.
Re-install the screen assembly.
7.
Align the arrow on the screen assembly with the arrow on the sensor
that points toward the sensing chamber. Push the screen down
carefully until it snaps into place.
8.
Make sure that one of the screen contacts touches the circuit board
contact.
9.
Re-install the detector cover using the LEDs to align the cover with
the detector. Snap the cover into place.
10.
Check the rotary SLC address switches to verify that the correct
address is set for the detector mounting base location.
11.
Re-install the detector in its mounting base.
12.
Restore system operation for testing purposes when all detectors are
clean.
13.
Test the detectors as described in the
Testing
section of this technical
bulletin.
When Testing and
Maintenance Are
Complete
Detector Cleaning
Procedure
