It is important that all Alarms in your system communicate with each other. The number
of walls, ceilings and metal objects in the signal path will reduce the strength of the
Ra signals between the Alarms. Accordingly, one or more Smoke/Heat/CO
Alarms may have difficulties in communicating to all the other Alarms in the system.
If, when checking the Ra interconnection, some of the Alarms do not
respond to the button test, then you will need to either:
(i) Position another Ra Alarm to act as a ‘repeater’ between the Alarms
which are not communicating and so shorten the path and/or by-pass an obstacle
which is blocking the signal. When the new Alarm is fitted, House Code all Alarms
again, as described above.
(ii) rotate / re-locate the Alarms (e.g. move them away from metal surfaces or wiring).
After making these changes to the RF signal path, the Ra signals may still
not be reaching all the Alarms in your system, even though they have already been
House Coded successfully. (see Section on “Limitations of Radio Communications”).
It is important to check that all Alarms are communicating in their final installed
positions. If Alarms are rotated, have had their antennas extended and/or re-sited,
we would recommend that all the Alarms are returned to the factory settings and
then House Coded again in their final positions (see above). The Ra
interconnection should then be checked again by button testing all units.
(NB. The Ra module can be returned to the originally factory settings by
pressing and holding the House Code switch until the blue light turns on solidly and then
flashes rapidly. This will take about 7 seconds. This clears the learnt House Codes).
17
Ra Troubleshooting
Summary of Contents for Ei100MRF
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