Replies: 11 comments
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Well the more data you can log, the more you see the quirks of the system :-) |
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Thank you for the test and information, sounds good 👍
Syslog enabled... just wait for more data.
Or can I evaluate this via other parameters that are supplied via MQTT? api/thermostat {
"errorcode": "(0)",
"datetime": "11:05:48 22/11/2021",
"floordry": "off",
"dampedoutdoortemp": 2.6,
"floordrytemp": 0,
"building": "light",
"minexttemp": -10,
"wwsettemp": 60,
"wwmode": "own_prog",
"wwsettemplow": 45,
"wwcircmode": "own_prog",
"wwchargeduration": 60,
"wwcharge": "off",
"wwextra1": 0,
"wwdisinfect": "on",
"wwdisinfectday": "we",
"wwdisinfecttime": 180,
"hc1": {
"seltemp": 24,
"mode": "auto",
"modetype": "comfort",
"ecotemp": 15,
"manualtemp": 24,
"comforttemp": 25,
"summertemp": 17,
"designtemp": 45,
"offsettemp": 0,
"minflowtemp": 25,
"maxflowtemp": 60,
"roominfluence": 0,
"curroominfl": 0,
"nofrosttemp": 5,
"targetflowtemp": 39,
"heatingtype": "radiator",
"summersetmode": "auto",
"summermode": "off",
"controlmode": "optimized",
"program": "prog_1",
"fastheatup": 0
}
}api/boiler {
"heatingactive": "on",
"tapwateractive": "off",
"selflowtemp": 39,
"selburnpow": 100,
"heatingpumpmod": 49,
"outdoortemp": 6.4,
"curflowtemp": 33,
"burngas": "on",
"flamecurr": 9.7,
"heatingpump": "on",
"fanwork": "on",
"ignwork": "off",
"heatingactivated": "on",
"heatingtemp": 60,
"pumpmodmax": 100,
"pumpmodmin": 10,
"pumpdelay": 5,
"burnminperiod": 10,
"burnminpower": 0,
"burnmaxpower": 100,
"boilhyston": -6,
"boilhystoff": 6,
"curburnpow": 23,
"burnstarts": 1200,
"burnworkmin": 20041,
"heatworkmin": 15251,
"ubauptime": 235507,
"lastcode": "0Y(276) 10.11.2021 03:20",
"servicecode": "-H",
"servicecodenumber": 200,
"maintenancemessage": " ",
"maintenance": "date",
"maintenancetime": 6000,
"maintenancedate": "07.07.2023",
"wwseltemp": 57,
"wwsettemp": 57,
"wwtype": "buffer",
"wwcomfort": "eco",
"wwflowtempoffset": 40,
"wwmaxpower": 100,
"wwcircpump": "off",
"wwchargetype": "3-way valve",
"wwhyston": -5,
"wwhystoff": 0,
"wwdisinfectiontemp": 70,
"wwcircmode": "2x3min",
"wwcirc": "off",
"wwcurtemp": 57.4,
"wwcurtemp2": 57.4,
"wwcurflow": 0,
"wwstoragetemp2": 57.4,
"wwactivated": "on",
"wwonetime": "off",
"wwdisinfect": "off",
"wwcharging": "off",
"wwrecharging": "off",
"wwtempok": "on",
"wwactive": "off",
"wwheat": "off",
"wwstarts": 389,
"wwworkm": 4790
}Thanks for your help and time. |
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Is the problem still happening? |
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Have you a graph of outside temperature vs pump speed? Wonder if it's some form of frost protection cutting in? |
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It's gotten a little better. I have lowered the ### hc1 selected room temperature from 25 ° C to 24 ° C. But I don't know what the hc1 comfort temperature is and whether it has any influence?
I have been looking for an optimal setting for my heating for a long time, but can hardly find any information about it. Somehow the behavior is strange, because I don't see any connection between room temperatures, outside temperatures and line pressure. The night setback is also moderate - only from 24 ° C to 20 ° C. Controller: BC25 (DeviceID:0x09, ProductID:125, Version:03.05) Thermostat: RC300/RC310/Moduline 3000/1010H/CW400/Sense II (DeviceID:0x10, ProductID:158, Version:74.02) |
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I now suspect that it is the water heating. Because whenever "ww charging" or "binary_sensor.boiler_gas" is on, the pump modulation increases.
I just don't know how to narrow it down so that I can be sure that it is the hot water preparation and not the heating circuit. Also do not understand why this happens at night, because the water heating is switched off from 23:00 to 05:00. |
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Not sure about the heat pump and how it is connected, but just in case I would add to the chart : boiler_ww_set_temperature - this is the temperature that is requested currently by the system, please note that even if the WW is off during the night, water temp can't fall below this value (at least that what I see on my installation as this value is set to 10C when system is off) So what could be happening is that boiler_ww_current_intern_temperature falls below boiler_ww_set_temperature but as WW is switched off for some reason heat is not transferring from heatpump to WW |
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@firegnom Therefore, if the hot water operation is switched off, the pump may run at 100% and, since the set temperature is not reached, it will run until 5:00 in the morning. Do not understand, because if there is no heating of the hot water tank, it makes no sense that the pump is running. I will try to make the hot water supply overnight, because I'm not sure which one is more economical. Then I could see if the effect of the pump modulation is reduced. |
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You should be able to see that in Grafana that data should be already in the database I just made a quick sample chart from my instance: So if the boiler_ww_current_intern_temperature goes below boiler_ww_set_temperature and not growing means this is the reason otherwise it is something else. Please note I am using boiler_burner_current_power in your case it has to be heat pump modulation The 3 queries used in his graph : SELECT mean("value") FROM "%" WHERE ("entity_id" = 'boiler_burner_current_power') AND $timeFilter GROUP BY time($__interval) fill(previous)
SELECT mean("value") FROM "°C" WHERE ("entity_id" = 'boiler_ww_set_temperature') AND $timeFilter GROUP BY time($__interval) fill(previous)
SELECT mean("value") FROM "°C" WHERE ("entity_id" = 'boiler_ww_current_intern_temperature') AND $timeFilter GROUP BY time($__interval) fill(previous) |
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@firegnom
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Due to this issue still being open some thoughts. You say that you see that All radiators have the same setting as during the day, the line pressure (flow and return) show no major deviations. How do you measure the line pressure? Some pumps run in Delta-P mode with pressures somwhere between 150 mbar and 300 mbar. Now at night when you switch off the heating the radiator valves open because it is getting cold, pressure from the pump falls and the pump increases its power. |
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Question
I don't understand the increase in the pump modulation, because on some nights it is very high and then again it is not.
The settings are always the same:
Who is responsible for the increase in pump modulation and why does it only happen at night?
During the day, operations are normal.
Screenshots
Device information
Additional context
Add any other context about the problem here.
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