System Sensor 1451 Plug-in Intelligent - Manual (Page 3)

D400-01-01 3 I56-0278-008R
Figure 2: Maintenance
It is recommended that the detector be removed from its
mounting base to facilitate easier cleaning. The detector is
cleaned as follows:
NOTE: Before removing the detector, notify the proper
authorities that the smoke detector system is undergoing
maintenance, and will temporarily be out of service. Dis-
able the zone or system undergoing maintenance to pre-
vent unwanted alarms.
1. Remove the detector screen and cover assembly by de-
pressing the three lock prongs on the top of the cover,
rotating the cover counterclockwise, and pulling the
screen and cover assembly away from the detector. (See
Figure 2.) Usage of a System Sensor CRT400 cover re-
moval tool is recommended.
2. Remove the screen from the cover.
3. Use a vacuum cleaner to remove dust from the screen,
the cover, and the sensing chamber.
4. After cleaning, snap the screen into the cover, then place
the cover and screen assembly on the detector, turning
clockwise until it is locked in place.
5. Reinstall the detector.
6. Test the detector as described under TESTING.
7. Notify the proper authorities that the system is back on line.
LOCK PRONG
REMOVABLE SCREEN
(P/N RS14)
REMOVABLE
COVER
FOR
CLEANING
SENSING CHAMBER
S0138-00