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Wiring
There are three typical wiring configurations:
•
Single device and single zone (Figure 3)
•
Multiple devices in a single zone (Figure 4)
•
Multiple devices with separate alarm and trouble zones
(Figure 5)
CO detector replacement
The 250-CO Carbon Monoxide Detector has a long-life carbon
monoxide electrochemical sensor. Replace the detector with a
new 250-CO detector after six years from the date of manufacture
or when an audible and visible annunciation occurs signaling end-
of-life.
To silence the detector, push the test/hush button
Figure 4: Multiple devices, single zone configuration
1
PWR
PWR
1.
Alarm IDC (NO)
Note: Relay is shown in the normal state for this detector
Figure 5: Multiple devices, separate alarm, trouble zone configuration
1
2
PWR
PWR
1.
Alarm IDC (NO)
2.
Supervisory IDC (NC)
Note: Relay is shown in the normal state for this detector
4 of 6
Figure 3: Single device, single zone configuration
1
PWR
PWR
1.
Alarm IDC (NO)
2.
End-of-line device (provided by the life safety system)
Note: Relay is shown in the normal state for this detector
2.
End-of-line device (supplied by life safety system)
3
3.
End-of-line device (supplied by life safety system)
2
3
P/N 1061018 • REV D • ISS 10FEB10
2
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