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Wiring a central heating boiler timer

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19 Dec 2018
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I got a new Immermat flash timer. It 4 terminals: Live in, Neutral in, Live out and Neutral out.
There are only 3 wire coming into the timer: brown, black and grey. How do I connect the wires to the terminals.
 
I got a new Immermat flash timer. It 4 terminals: Live in, Neutral in, Live out and Neutral out.
There are only 3 wire coming into the timer: brown, black and grey. How do I connect the wires to the terminals.
Are you sure you have bought the correct timer? The Immerstat is intended for electrical immersion heaters, not for gas/oil central heating boilers.

What was the old timer?
 
Why would you need a neutral out ?, the stat switches on the live not on both
 

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