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EI156 extra two wires not included in installation guide

Guest D

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Hi All

I have purchased an EI156 as a replacement for a EI150 and it has two extra wires that are not shown in the wiring diagrams. The power block wiring is the same between the two units but there is an orange and purple wire which are not mentioned. Do these need to be wired in?


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It sounds as if you have been supplied with an Ei156TLR instead of an Ei156TLH. The two extra wires are for an older style of wiring to things like the old test/hush switch or old style call points. Presumably you don't have any of these? If this is the case, then the two extra wires can be ignored and the alarm can be wired as normal.


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