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  1. bliss000

    Replacing Honeywell T40 with Salus RT300 RF

    I was planning on replacing our Honeywell T40 room stat with the wireless Salus RT300 RF. Is it possible to directly replace the T40 with the RT300, or will I need extra wiring? The T40 has 4 wires; Live, Neutral and 2 that look like earth wires. Thanks.
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