Hot water!

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Some pictures of heating controls and some labels that seem to be mis-matched

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Photos

Equaliser
You can see the different feeds into and out of the equaliser: the temperature that each of the thermostats is set to is written in red.

Pumps and other stuff
If you zoom you should be able to read the writing: just about everything is labelled.

All the controls
Expansion vessel and overflow for solar fluid are on left and pipe in black insulated jacket is from the solar. There's labels on everything if you zoom in!

Jabels on the equaliser
Top connections are labelled F/CH for the farthest away one and nearest one says F/CYL - the ones on the bottom match. R/CH is directly below F/CH and R/CYL below F/CYL. These were labelled by the plumber. Now look at next photo..

DHW pump?
but the pump which is attached to the pipe coming from the F/CH connection is labelled DHW.

CH pump ?
...and the pipe leading from the F/CYL connection is labelled CH.