Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

O

Old Account

Hi lads,

I just wanted to find out How you guys connect a jest 3rd gen. To Vaillant ecotec plus 825?

I usually install the Vsmart only but in case a customer would like to use the nest I wanted to be prepared how to connect it with a 3 core wire.

Kind regards,

Ron
 
LNE to supply boiler
LN to power receiver
Common and switched live to control heating
Think you would use 24v on the Vaillant
 
LNE to supply boiler
LN to power receiver
Common and switched live to control heating
Think you would use 24v on the Vaillant
Thanks scott much appreciate it.
I assume the LN going to Slot 1/2 at the receiver and from 24v slot from boiler to slot 3/4 at the receiver ?
 
Live and neutral to L and N on the receiver
Common to 2
Switch live to 3
Common and switch live are coming from the boiler 24v Slot into the Receiver 3/4 correct ? Thanks for your patience Scotti thanks a million
 

Official Sponsors of Plumbers Talk

Similar plumbing topics

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.