Connect Viessmann boiler to honeywell smartfit

[BigTHoldstock]

Hello guys
Just installed a Viessmann Vitodens 100w and am struggling with the wiring (honeywell smartfit controller). Viessmann say you can just connect the mains power to the boiler, which I've done, and it works. However, there is no pump overrun this way. As soon as demand goes off, the boiler goes off. On the Smartfit pcb, there is a Sl and Pl (switched live and pump live), which I presumably have to connect to the boiler. And this is where I'm stuck. Any suggestions would be appreciated. Many thanks!

 

[ShaunCorbs]

Need to wire the pump back to the boiler for pump overrun or wire in an overrun timer for the pump

 

[BigTHoldstock]

Thanks Shaun. Yep, I did that and it works. I was getting confused by the 'pl' on the honeywell.
Many thanks, Tiel