Siemens RWB7 Control Switch

[Niall Lynch]

Hi,
I had a baxi 105e installed about six months ago. It is installed in my shed. I bought a Siemens RWB7 Control Switch and I am not sure about which terminals to connect up. I removed the link wire from the baxi unit and connected the live and neutral from the control unit into it

 

[chrishutt]

It is installed in my shed.

Only in Ireland...

If you refer to the installation instructions of your boiler, it should explain the options for electrical connections. Don't do anything until you are sure that you fully understand it. You could do some expensive damage to the boiler.

 

[kevplumb]

terminals 1&2 (where the link was) should be connected to the switch terminals not the l & n

7. To connect external control(s) remove the link
between terminals 1 & 2. The 230V supply at
terminal 1 must be connected to the external
control. The switched output from the external
control must be connected to terminal 2 (Fig.
29).
NOTE: If the room thermostat being used
incorporates an anticipator it MUST be wired as
shown in Fig. 29
IMPORTANT: The external control MUST be
suitable for 230V switching.