I think I have uncovered a bug with the Evohome and OpenTherm implementation.
When there is a HW heating scheduled the OpenTherm sets the boiler to 90C (or max boiler). However even after the Evohome HW reaches temperature and the BDR91 is no longer calling for heat, the boiler is still set to a target of 90C.
If during this time the CH calls for heat the target for the boiler is still set to 90C, regardless of HW demand or not. The 90C target seems to be set based on the HW schedule rather than actual demand.
Anyone else able to confirm what I am seeing?
When there is a HW heating scheduled the OpenTherm sets the boiler to 90C (or max boiler). However even after the Evohome HW reaches temperature and the BDR91 is no longer calling for heat, the boiler is still set to a target of 90C.
If during this time the CH calls for heat the target for the boiler is still set to 90C, regardless of HW demand or not. The 90C target seems to be set based on the HW schedule rather than actual demand.
Anyone else able to confirm what I am seeing?
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