Edwards Signaling 260-CO - Manual (Page 6)

6 / 8 P/N 3102002-EN • REV 01 • ISS 27AUG12
Figure 6: Multiple devices, separate alarm, trouble zone config.
(1)
(1)
(2)
(3) (4)
(6)
(8)
(7)
C
NC
NC
NO
C
C
NC
NC
NO
C
C
NC
NC
NO
C
(5)
(1)
(1) End-of-line device (supplied by life safety system)
(2) ESL 405-03 (12 VDC) or ESL 405-01 (24 VDC) polarity reversal
module
(3) Control panel
(4) Supervisory IDC
(5) Alarm IDC
(6) Power 12/24 VDC
(7) Notification appliance circuit (NAC) from 12 VDC control panel
(8) Notification appliance circuit (NAC) from 24 VDC control panel
Note: Relay is shown in the normal state for this detector.
Notification
Notification of carbon monoxide detectors should be consistent
with NFPA 720 and the local AHJ. Notification zones should be
consistent with the emergency plan for the protected premises.
Features
The 260-CO includes several features, as shown in Figure 7.
Figure 7: 260-CO features
(1)
(2)
(5)
(4)
(3)
(1) Sensor port
(2) LED alarm light
(3) Test/hush
button
(4) Trouble relay and power wire hole
(5) Alarm relay wire hole
Testing
Caution: To reduce the risk of carbon monoxide poisoning,
test alarm operation when not in use for 10 days or more.
Note: Before beginning any test, notify all persons and
facilities that receive alarms and troubles to prevent any
unnecessary responses.
After installation and once a week, test the detector to verify
that it is functioning properly. Check the common trouble relay
and the panel’s response, and then use the test/hush button to
verify that the detector is functioning properly. If the detector
fails the test, verify all connections, wait briefly, and then try
again. If the detector fails again, replace it.
The detector features a SAFEtest mode. In SAFEtest mode
you can perform a functional carbon monoxide gas test using a
can of CO testing agent.
To test the trouble relay:
1. Momentarily disconnect the power supply from the
detector and verify that the common trouble relay opens.
2. Verify that the control panel reacts correctly to the relay
activation.
Test/hush button: (See Figure 7.) Use the test/hush button to
test the detector and silence an activated detector. When in
alarm, momentarily pushing the test/hush button silences the
integral sounder for five minutes. The red LED alarm light stays
on, and if CO is still present after five minutes, the detector
once again sounds in the temporal-four pattern. The detector
automatically resets when CO is no longer detected.
You can perform three different tests by pressing the test/hush
button. How long the button is pressed determines which tests
are performed. See Table 3.