The day's heat figures were too low on the bigger units. A heat sample above 14 kW was dropped as a sensor glitch, so on a 16 kW unit making 14-15 kW water-side most of a run went uncounted: a day's heating read 2 kWh for 23 made, its COP under 1, and the live COP went blank. Found by comparing the unit's own counter with ESPAltherma's over a 94-minute run on an EAVH16 (the two agree within 8 % once the cap is right). The cap now follows the unit: 1.6 × the capacity of its series. The 4-8 kW units were not affected.
The unit's energy by mode, on every mapped board. Next to the heat produced, the hydro board's own heat in space heating, hot water and cooling ("Unit meter: Heat produced, space heating (kWh)" and so on, their sum is the meter) and the electricity used by all modes ("Unit meter: Electricity used (kWh)"): the unit's own COP since the installation, and per day through Home Assistant's statistics. On 20002203 the electricity of each mode comes too (@ppuetsch, #653). The counters are also on 20002202 (@Senaxx's reads gave the power limitation words as well, the limit works there now) and on the Altherma Hybrid (software 5190, @marcoatwork80's reads against his interface). The home page shows them under the day's figures ("Since installation"), the card since 1.0.32.
The unit's model name. On the 2020 hydro board softwares the name plate model (EHBX08EF6V…) is read from the board's memory: in the web page's header, as the model of the Home Assistant device and as the diagnostic "Unit model" (@ppuetsch, #654). The 2017-2018 softwares hold zeros there, so nothing shows on those. The survey reads it too, and where a board's AS number lists the definitions of two capacities of a series, the capacity in the name picks the right one.
A daily heartbeat under the report box. The "Help others get their heat pump recognised" box also sends, once a day, a short heartbeat: firmware version, board, model, hydro board software, uptime, and which optional features are on and working. It tells which versions and features are in use, which decides where the work goes. No readings, no settings; "See exactly what is sent" shows it next to the report; untick the box to send nothing. Details on the reports page.
Docs. What the 20002203 board's memory holds, including its installer settings and the operation bytes that the X10A port cannot set (@ppuetsch, #651, #656).
Update: System → Firmware update → Check for an update, or the web installer. Card: 1.0.34 on HACS (the counters under the day's figures, "All entities ↗", the target pills open their entity).