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3.
The mounting hole pattern is for single-gang spacing. Use the
base for a template to mark the two screw hole locations on
the mounting surface or mount on a single-gang box (not
provided).
4.
Install two screws on the marks. If necessary, use wall
anchors.
5.
Line up the base with the screws, pull the wires through the
square holes, and slide the base down the screws to the wall.
For surface wiring, pull the wires through the wiring channel
at the bottom of the base.
6.
Strip 3/8 in. of insulation from each wire.
7.
Determine the correct wiring (see "Wiring" and Figures 3 to 5
below) and insert the wires under the appropriate screw
terminals.
8.
Tighten both screws to secure the base to the wall.
9.
Replace the detector cover.
10. Apply power. The LED should flash green for approximately
four seconds and then pulse green.
11. Test per the testing instructions below.
To install the detector using the adapter plate:
1.
Run the 250-CO detector wiring to the detector location.
2.
Using the 250-COPLT wall plate for a template, trace the
perimeter of the two square holes on the mounting surface.
Also mark the two screw locations.
3.
Cut out the two square holes.
4.
Install two screws on the marks. If necessary, use wall
anchors.
5.
Mount the wall plate but do not fully tighten down the screws.
6.
Carefully remove the cover from the detector using a small,
flat screwdriver blade in the slot on the left side of the
detector cover.
7.
Pull the wires through the square holes on both the wall plate
and the 250-CO base. Then slide the detector base over the
screws.
8.
Strip 3/8 in. of insulation from each wire.
9.
Determine the correct wiring (see "Wiring" and Figures 3 to 5
below) and insert the wires under the appropriate screw
terminals.
10. Tighten both screws to secure the base to the wall plate.
11. Replace the detector cover.
12. Apply power. The LED should flash green for approximately
four seconds and then pulse green.
13. Test per testing instructions below.
P/N 1061018 • REV D • ISS 10FEB10
Figure 2: Screw terminals
3
1
1.
Sounder
2.
Sensor
3.
Alarm relay
4.
Terminals "−" and "+" are for power; terminals "NC" and "C"
are the common trouble relay shown in the normal state for
this detector
Testing
Test the detector after installation and regularly to verify that it is
functioning properly.
To test the CO detector:
1.
To test the alarm and trouble relay panel connection, first
notify all persons and facilities that receive an alarm and
trouble signals (to prevent unnecessary response).
2.
Momentarily press the test/hush button to start a test cycle.
During the test cycle the detector should beep four times with
a five second pause, then beep four more times. The LED
should flash red at each sounder beep. At the end of the test
cycle, the green LED illuminates for approximately four
seconds.
3.
Momentarily disconnect the power supply from the detector
and verify that the common trouble relay opens.
4.
Verify that the panel reacts correctly to the alarm relay
activation.
5.
If the detector fails the test, verify that the power leads are
connected properly, wait briefly then try again. If the detector
fails again, replace it.
Maintenance
Clean the detector as needed with a clean cloth (either dry or
dampened with water) to keep openings free from dust and dirt.
Test the detector regularly.
Do not paint the detector or expose it to cleaning solutions.
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.
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