I also have the same one I'm wiring today. My old programmer was a horstmann centaur plus c17 and I've attached the old wiring diagram (I think I'm diagram 4).
[Ignore following as Post now split into two posts >>> . As an FYI, it is sometimes better to start a new thread, a reason being is, not everyone reads how old a thread is].
Rik
Another Chinese thermostat - shudder.
And as before it is a pain to put on the wall as the black metal plate and white face plate never slots easily together.
Either way - at your risk....
Yes your current wiring looks to match 'Diagram 4'.
In your case Joining/switching 2 (Brown jumper) and 4 (Red) together fires the boiler.
So 2 (Brown Jumper cable) on old unit goes into 2 on your new unit
and
4 (Red) on old unit goes into 1 on your new unit.
(or vise versa as 1 and 2 on new unit can be swapped - I suggest above as your jumper cable is short).
Rik
I would cut the bare wire section of the red wire a little shorter so there is less bare wire protruding from the hole (minimises chance of it touching something else).
SFK
And this post is a perfect example of why it is against site rules to Hi-Jack posts, two completely different set ups, and you wonder why people get confused
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local