14 Intelligent Products—2251J Plug-In Low Profile Intelligent Photoelectronic Smoke Detector
Before cleaning, notify the proper authorities that the system is undergoing
maintenance and will be temporarily out of service. Disable the system to
prevent unwanted alarms.
Upon completion of maintenance, and any subsequent testing, enable any
system functions previously disabled for maintenance, and notify the
authorities that the system is back in service.
1.
Remove the detector to be cleaned from the system.
2.
Remove the detector cover.
3.
Use a small standard screwdriver to release each of four cover
removal tabs that hold the cover in place.
4.
Vacuum the outside of the screen carefully without removing it.
5.
Remove the detector screen.
6.
Pull the screen straight away from the sensing chamber until it snaps
out of place. Replacement screens are available (A4176-00).
7.
Use a vacuum or clean compressed air to remove dust and debris from
the sensing chamber.
8.
Reinstall or replace the sensing chamber screen by sliding the edge
without the tabs over the sensing chamber.
9.
Make sure that one of the screen contacts touches the circuit board
contact.
10. Align the arrow on the screen with the arrow on the detector that
points to the sensing chamber.
11. Push the screen over the sensing chamber until it snaps into place.
12. Reinstall the detector cover.
13. Use the test module socket and LEDs to align the cover with the
detector.
14. Snap the cover into place.
15. When all detectors have been cleaned, restore system operation for
testing purposes and test the detectors as described in the Testing
section of this technical bulletin.
Maintenance
