Sergeant "D"

> Yes, the delta will be rather big, as the temperature in the bedrooms is maybe only 15 degrees and the target is set to 20. However I don't see...

Hi @stachdude and welcome! Yes you are correct this is not a normal behavior for the synchros. The synchros do not affect the SAT operation at all. They are only...

[This](https://github.com/emsesp/EMS-ESP32/discussions/2257) is the proposed EMS mapping from the EMS-ESP creators. You can change it in your installation, if the proposed node_ids are not working for you.

No, EMS-ESP creators advised us to use the `dhw/seltemp` ack, which is a Read/Write value. Can you confirm that this is the correct value? https://github.com/Alexwijn/SAT/blob/5890ed2ba7ac9785fc919c1f51131b4f95a1fb18/custom_components/sat/mqtt/ems.py#L15

Based on the OpenTherm specs, I would suggest for the max_rel_mod_level number in the `esphome/components/opentherm/schema.py`: `step=1` `max_value=100` OpenTherm protocol documentation isn’t clear for the `ID15` MaxCapacityMinModLevel. The MaxCapacityMinModLevel represents 2...

> ID17 (rel_mod_level) would then be a percentage bound by ID15:LB and ID14. No, when you set the ID14 to a certain value ( e.g 60% ) then the boiler’s...

This [link](http://otgw.tclcode.com/background.html) may clear things out.

Do you own any of the compatible OpemTherm boards?

Go to General settings -> Heating Mode -> Comfort. > Heating Mode: > 1. Comfort ( SAT monitors the climates in other rooms to determine the error. It selects the...

Is the SAT temperature setpoint the same as the disabled room TRV setpoint, since they are placed in the same room? Also you need to change heating mode to Comfort.