How should I choose the right adapter among those provided?

To identify the type of radiator body you have and to choose the correct adapter for your radiator body, you can:

• Refer to the adapter selection guide and template available on our e-shop 
• Refer to the adapter selection guide and template provided in the pack
• Refer to our tutorial video on our e-shop or Youtube page 

If you have M28 thermostatic bodies, you also have to select the right extension, since M28 thermostatic bodies on the market have different lengths. The extensions supplied allow your Somfy thermostatic valve io to be installed on all types of M28 x 1.5mm bodies, in the following manner.

If your thermostatic body corresponds to a size 1 on the template:

If your body thermostatic body corresponds to sizes 2, 3 or 4 on the template: