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Wiring a Oil heating timer

Spongey1975 · 2016-02-09 20:30:58

My APT timer for the oil heating is a standard manual clock timer that has stopped. Decided to switch to a digital timer. My only problem is identifying which wires are which to connect them to the new timer. There are 5 ports in the new timer (Neutral, Earth, Live Out & 2 Live In ports) so i just need to know which of the…

09-02-2016 08:30PM

#1

Spongey1975

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Join Date: March 2007

Posts: 1792

My APT timer for the oil heating is a standard manual clock timer that has stopped. Decided to switch to a digital timer. My only problem is identifying which wires are which to connect them to the new timer. There are 5 ports in the new timer (Neutral, Earth, Live Out & 2 Live In ports) so i just need to know which of the wires coming out of the wall is which. Here is the wires connected to the old timer.

The two grey wires go into the same port, the two black wires into the same port and the orange wire into its own port. But which wire is which?

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