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Instruction Manual: COSTAR® 12SIR, 12V System CO Alarm
QGI P/N 099-0066-01 REV 10/26/01
Page 5 of 7
Figure 6
A.) Parallel with the hallway walls when ceiling mounting
B.) Pointed upward when wall mounting
9.4 Attach the mounting plate on the wall. Be sure the UP text and arrow are facing up. Use the screws and anchors provided
to secure the mounting plate.
9.5 WIRING INSTALLATION
Internal terminal block for 14-22 AWG wires. 8 screw terminals at 0.2" (5 mm) spacing.
9.5.1 Drill hole in wall or ceiling at center of plate, and pull system wires through the hole.
9.5.2 Remove alarm cover by using the special tool provided on the three locking tabs on the alarm base. (see figure 4)
Figure 4
9.5.2 Pull wires through hole at center of alarm base and connect to the internal terminal block as shown on the following wiring
diagrams. (see figure 5)
Figure 5
NOTE: The form 'C' relay contacts may be wired either N.O. or N.C. according to system panel requirements. These alarms are not
designed to drive auxiliary devices
9.5.4 The 12SIR alarms do not include power supervision. This may be accomplished by installing a power supervision relay at
the end of the alarm power circuit. No internal backup battery.
9.6 Alignment marks are provided on the edge of the trim plate and the alarm. After
installing the mounting plate, place the alarm on the mounting plate with the alignment marks
lined up. Twist the alarm in the direction indicated by the "ON" arrow on the alarm cover
until it locks in place.
9.7 To make your carbon monoxide alarm tamper resistant, a locking pin has been
provided in the bag with the screws and anchors. Using this pin will deter children and others
from removing the alarm from the mounting plate. To use the pin insert it into the hole in the
side of the alarm after the alarm has been installed on the mounting plate (see figure 6). To
remove the alarm, use long nose pliers pull the pin out of the hole; it is now possible to
remove the alarm from the mounting plate. Test alarm immediately following installation and weekly for proper operation by
pushing the test button until a short beep is heard (approximately three seconds). Release the button. The alarm will then test itself