Just checked this. Like I suspected, the Left hand CYL terminal is 230V Live. And the moment that 230V live reaches the Right hand CYL terminal, the boiler is put into DHW heating mode.
So my solution should work for you. Just send your DHW timer Live output that is used to power your DHW valve (Brown wire) to the Right hand terminal on the CYL terminal block.
Keep all your Orange zone valve wires as they are to fire the boiler.
So my solution should work for you. Just send your DHW timer Live output that is used to power your DHW valve (Brown wire) to the Right hand terminal on the CYL terminal block.
Keep all your Orange zone valve wires as they are to fire the boiler.
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