Thermostat, Timer & Boiler Wiring

[kaycee81]

Hi all, my first post here, so don't tear me completely to shreds!

I have a Vaillant Turbomax boiler, Drayton RTS8 Thermostat and a Siemens RWB7 Timeswitch, which I'd like to connect together.

I have attached images of the wiring diagrams from the respective manuals.

Please could someone give me some guidance on how to connect these three devices together, and what cabling I should use between them.

Thank you in advance.

Untitled

• kaycee81
• 27 Feb 2013
• 1

Untitled

• kaycee81
• 27 Feb 2013
• 1

Untitled

• kaycee81
• 27 Feb 2013
• 1

Untitled

• kaycee81
• 27 Feb 2013
• 1

 

[stem]

Hello Kaycee81 and welcome to the forum.

You have answered your own question about connecting them together with the diagrams you have posted. However I have combined them into one diagram for you below. The earths are omitted for clarity, but you will need to connect them to the appropriate earth terminals.

Untitled

• stem
• 27 Feb 2013
• 1

The cables would normally be run in 1.5mm in twin and earth, with the exception of the cable to the boiler which would normally be heat resistant flex.

Because of the fact that the connections are split to different destinations, for example the thermostat wiring comes from both the boiler and programmer, the easiest way may be to use a centrally located 'Wiring Centre' (Junction box) and run the cables with the suitable number of cores from each component to the wiring centre and make the connections there. A Wiring Centre will also contain a cable grip for the boiler flex.