Sundial Y wiring question

[doitall]

That's what I was going to say.

240V on the orange = hws only.

240V on the white = mid position.

240V on the grey and White = HTG only. plus 240V output on the Orange wire.

240V on the grey = valve held in last position.

 

[DP]

John, is the valve not fitted with an auxillary switch (hence O, grey and white wires)?

 

[doitall]

John, is the valve not fitted with an auxillary switch (hence O, grey and white wires)?

Not on the diverter valve Dan.

Port B is normally open and you apply power to open port A.