salus kl08nsb wiring help

[gravelrash]

I have installed a salus kl08nsb controller but need to run a buffer temp differential controller to switch the boiler on via the salus boiler switch, can I use 240v through the salus boiler switching terminals? the salus instructions just show 0volt switching.

[JohnMo]

If it says 0 volt it normally means 0 volt. You may fry something otherwise. If you need 240v can you take a 240v jumper of the pump contacts, if the pump is running you have a call for heat.

[Marvin]

0 volts normally means its a separate relay (activated by other power but no power in the switch!)

 

When you look at the diagram it shows a separate source of power coming from the boiler through the relay and back to the boiler.  

[Marvin]

Hi @gravelrash

 

 

Edited December 19, 2022 by Marvin
minor change.

[gravelrash]

the supply would be from the tank temp differential controller when it asks for heat, this would need to run through the salus boiler control and then to boiler...would the salus switchung allow the 240v?