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The heating has been in for the last 30 years. I think that the heating and the hot water can not be programmed to operate independently. The pipe work is as follows: cylinder...

also got one pump in airing cupboard linked to the pipe with the motorised valve on it. The pump also has a pipe linking into the hotwater cylinder in the airing cupboard. Sorry i am a bit amature!

got 2 tanks in roof. one for topping up rads and one to feed into hot water cylinder

i have one of the second valves only. not the first picture.

sorry, dont understand terminology!

I am having touble wiring up a sunvic 207 to replace a Danfoss Randall 4033. The wiring diagram and table supplied with the sunvic 207 shows which wires should be taken from the 4033 and into which ports they should go on the sunvic 207 baseplate (which is basically why i bought this model - for...