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A maximum of 250 metres (820 ft) of wire can be used (maximum resistance between detectors 50
Ohms). Connect as shown in Figure 7.
Alarms should be interconnected only within the confines of a single family living unit. If they are
connected between different units there may be excessive nuisance alarms. Everybody may not be
aware that they are being tested etc.
If interconnected CO and Smoke/Heat Alarms are all sounding, the LOCATE switch on the Ei1529RC
Remote Control should be pressed. This will just leave the alarm that triggered the system sounding.
This is very important to determine because the actions to take in each situation are very different.
In the case of CO the premises should be fully ventilated by opening doors and windows. The user should
call the gas supplier etc.
In the case of fire, doors and windows should be closed to slow the spread of fire. The user should call
the fire brigade etc.
5. TESTING
1. Regularly check that the green mains power light is on. The unit cannot detect CO if the mains power is
off and the rechargeable battery back-up is depleted. (If it is off check circuit breakers, fuses, wiring etc).
2. Test the unit weekly by pressing the Test/Hush button. Hold the Test button (for up to 10 seconds) until
the horn sounds for over 5 seconds. This will help to familiarise you and your family with the distinctive
on-off sound of the CO Alarm. This test checks that the electronics and horn are working correctly. If units
are interconnected, button test each unit in turn and check all interconnected units alarm. (If the red alarm
light flashes when the button is pressed, see 2.4 “CO ALARM MEMORY” on page 9). Alternatively, if an
Ei1529RC Remote Control is in the system the unit can be tested by pressing the Test switch on the
Ei1529RC. This is equivalent to pressing the Test button on the Alarm. For further information see
“ACCESSORIES” on page 32.
3. If the Alarm gives a short beep and the amber fault light flashes every 40 seconds it means the self-
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