Discuss Never done a s plan. Stuggling in the UK Electrical Forum area at ElectriciansForums.net

As Davesparks has pointed out the terminal box on the cylinder with the strip of connectors has connections for the immersion and connections for the cylinder thermostat.

From left to right terminal 1 is common, terminal 2 breaks when temp rises above set point, terminal 3 makes when temp rises above set point, terminal 4 live immersion, terminal 5 neutral immersion and 6th terminal earth.

Immersion feed from double pole switch connects to terminals 4,5 and 6

Cylinder thermostat connects to terminal 1,2 and cpc in 6

2 connects to the brown of the hot water valve and an 1 connects to the terminal of the hot water valve connection in the UH4 where the rest of the hot water valve connections are terminated The heatmiser UH4 wiring diagram shows the connection of the valve.
 
Got to say that is a very cool and generous thing for Leesparkykent to do. After all the rubbish (politics and hate) I have heard and witnessed over the last few weeks it is nice and refreshing to see guys going out of their way to help each other out, Think the day should end in the pub if you are not driving.
 

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