System Sensor 2451A Installation And Maintenance Instructions page 2

Disconnect power from initiating-device circuits before in-
stalling detectors.
1. Install detectors:
a. Place the detector into the detector base
b. Turn the detector clockwise until the detector drops
into place.
c. Continue turning detector clockwise to lock it in
place.
2. Tamper-proof Feature
The detector bases include a feature that, when acti-
vated, prevents removal of the detector without the use
of a tool. See the installation instruction manual of the
detector base for details in using this feature.
3. Afer all detectors have been installed, apply power to
the control unit.
4. Test the detector using the magnet or the test card as
described under TESTING.
5. Reset the detector at the system control panel.
6. Notify the proper authorities that the system is back on
line.
Figure 1. Bottom and side views showing position of test magnet:
TEST MODULE
SOCKET
D400-02-01 REV#-002
LED
TEST
MAGNET
LED
Dust covers can be used to help limit dust entry to the
detector, but they are not a substitute for removing the
detector during building construction. Remove any dust
covers before placing system in service.
Testing
Before testing, notify the proper authorities that the smoke
detector system is undergoing maintenance and will tem-
porarily be out of service. Disable the zone or system un-
dergoing maintenance to prevent unwanted alarms.
Detectors must be tested after installation and periodic
maintenance. To test the 2451A:
NOTE: Before testing the detector, check to ensure that
the LEDs are blinking. If they are not, the detector
has lost power (check the wiring) or it is defective
(return for repair).
A. Test Magnet (System Sensor model no. M02-04-00)
2
PAINTED
SURFACE
TEST
MAGNET
A78-1213-00
I56-1020-000