I would suggest setting it up by turning it to the UFH side, CP setting, it will keep flashing the selected head M for a few seconds after you stop moving it and display the watts (and probably the actual head) I would suggest setting it to 3.5M initially, you can leave it like this if you like to see if its adequate to heat all your rads, if not adjust it up a little, say to 3.8M when happy with the final setting. when you do set it up initially at say 3.5M, immediately turn it to the "rads" and adjust it until the watts are the same as they were at CP 3.5M or whatever you selected, make a note of that PP setting, it might be 4.6M or so, for future reference, you can then switch back to CP mode or leave it on PP mode, its your choice.
You also have the 3 fixed speed traditional settings in the middle, I, II, & III, I=~ 2M, II=~4M and 3=~6M, setting II will/should satisfy most installations of your size, but I like to see the watts falling in PP mode as the TRVs throttle down etc. Remember, in CP & PP modes you can set it anywhere you like incrimentally, in 0.1M steps.
Forgot, that model now displays the flow as well so, if you do purchase it, post your values.
You also have the 3 fixed speed traditional settings in the middle, I, II, & III, I=~ 2M, II=~4M and 3=~6M, setting II will/should satisfy most installations of your size, but I like to see the watts falling in PP mode as the TRVs throttle down etc. Remember, in CP & PP modes you can set it anywhere you like incrimentally, in 0.1M steps.
Forgot, that model now displays the flow as well so, if you do purchase it, post your values.
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