Worcester-Bosch Greenstar Summer Mode temp value upper limit too low about ems-esp32

[undulanti]

@V4ler1an - Your suspicions about how your system was installed are correct - it's really rare to have boilers installed with hot water diverter kits here. In any event, I think this video might help you: https://www.youtube.com/watch?v=RJCGOtDLuNQ.

[proddy]

that's like a 2 second change. I'll do it ASAP

in the meantime, you can override it using Customizations

[proddy]

in dev11. Max is 45

[V4ler1an]

Brilliant, thank you.

[V4ler1an]

Ah... a problem. It seems the boiler's weather comp settings also limits the value to 30. My automation no longer errors but the boiler puts it back to 30. Is there any way around that do you think?

[proddy]

hmm, not sure. is it similar to https://emsesp.github.io/docs/Troubleshooting/#changing-a-value-works-at-first-but-is-then-reset-to-its-original-value ?

[V4ler1an]

The summer temp setting on the boiler is digital through menus, not a dial (if that's in any way relevant, after reading through the link you sent). Here's a quick syslog trace when i attempt to set it to 40. Anything revealing on the behaviour?

2024-05-18 14:14:24.163 I 11: [command] Calling command 'boiler/summertemp' (summer temperature) with value 40
2024-05-18 14:14:24.230 T 12: [emsesp] Me(0x0B) -W-> boiler(0x08), WeatherComp(0x28), data: 28 (offset 3)
2024-05-18 14:14:24.253 T 13: [emsesp] boiler(0x08) -B-> All(0x00), WeatherComp(0x28), data: 1E (offset 3)
2024-05-18 14:14:26.475 T 14: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorFastPlus(0xE4), data: 10 20 2D 2D 00 CB 00 01 0E 00 00 00 06 01 27 00 00 80 00 00 00 0D 00 01 0E 00 00
2024-05-18 14:14:26.652 T 15: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorFastPlus(0xE4), data: 00 00 00 00 EE 00 00 (offset 35)
2024-05-18 14:14:26.844 T 16: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorSlowPlus2(0xE3), data: 04 00 00 00 00 00 00 00 00 00 00 01 0E 00 64 46 00 00 00 00
2024-05-18 14:14:27.087 T 17: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorWWPlus(0xE9), data: 05 80 00 80 00 00 00 00 00 46 3C 00 00 02 00 00 00 00 00 00 00 00 00 05 02 00
2024-05-18 14:14:36.485 T 18: [emsesp] boiler(0x08) -B-> All(0x00), UBADevices(0x07), data: 0B 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2024-05-18 14:14:36.656 T 19: [emsesp] boiler(0x08) -B-> All(0x00), UBAOutdoorTemp(0xD1), data: 00 BC
2024-05-18 14:14:37.203 T 22: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorSlowPlus(0xE5), data: 01 00 40 00 00 73 00 00 20 00 00 39 E2 02 9E 53 00 00 00 02 9E 53 00 39 E2 00 64
2024-05-18 14:14:37.376 T 23: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorSlowPlus(0xE5), data: 00 00 00 00 (offset 28)
2024-05-18 14:14:37.601 T 24: [emsesp] boiler(0x08) -B-> All(0x00), ?(0x02D6), data: 00 00 00 00 00 46 00
2024-05-18 14:14:37.799 T 25: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorFastPlus(0xE4), data: 10 20 2D 2D 00 CB 00 01 0E 00 00 00 06 01 27 00 00 80 00 00 00 0D 00 01 0E 00 00
2024-05-18 14:14:46.493 T 29: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorFastPlus(0xE4), data: 10 20 2D 2D 00 CB 00 01 0E 00 00 00 06 01 27 00 00 80 00 00 00 0D 00 01 0E 00 00
2024-05-18 14:14:46.672 T 30: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorFastPlus(0xE4), data: 00 00 00 00 EE 00 00 (offset 35)
2024-05-18 14:14:46.861 T 31: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorSlowPlus2(0xE3), data: 04 00 00 00 00 00 00 00 00 00 00 01 0E 00 64 46 00 00 00 00
2024-05-18 14:14:47.066 T 32: [emsesp] boiler(0x08) -B-> All(0x00), UBAMonitorWWPlus(0xE9), data: 05 80 00 80 00 00 00 00 00 46 3C 00 00 02 00 00 00 00 00 00 00 00 00 05 02 00
2024-05-18 14:14:47.369 T 34: [emsesp] boiler(0x08) -W-> Me(0x0B), UBAParametersPlus(0xE6), data: 01 46 00 4B 64 0A 00 00 06 FA 05 01 02 64 0A 03 00 00 00 1E 01 00 00 00 01 00 00
2024-05-18 14:14:47.633 T 37: [emsesp] Me(0x0B) -R-> boiler(0x08), UBAParameterWWPlus(0xEA), length: 27
2024-05-18 14:14:47.792 T 39: [emsesp] Me(0x0B) -R-> boiler(0x08), UBAParameterWWPlus(0xEA), length: 27 (offset 27)
2024-05-18 14:14:47.906 T 41: [emsesp] Me(0x0B) -R-> boiler(0x08), WeatherComp(0x28), length: 27
2024-05-18 14:14:47.936 T 42: [emsesp] boiler(0x08) -W-> Me(0x0B), WeatherComp(0x28), data: FF 32 23 1E 00 05

[V4ler1an]

Side note: since applying the beta firmware, i've been seeing this. Just keeps spinning:

[proddy]

Side note: since applying the beta firmware, i've been seeing this. Just keeps spinning:

refresh browser cache help?

[V4ler1an]

Yes might have needed it. Seems ok now.

[V4ler1an]

Thanks, I had seen Tom's video actually. I'm not sure if that method will ensure my boiler's weather compensation add-on kit will continue to work, it may do. Anyway, I decided to stick with using my EMS-Bus gateway with Home Assistant automations because it lets me run two weather curves - one low, one high. The boiler's primary heating curve is set really low: 35 to 45 deg. Then when needed, either for hot water demand or to warm up a room that's too cold, the curve is temporarily boosted to 60 to 75 deg. Gives a nice combo of very efficient flow temps 95% of the time then very rapid warm up if a room was unoccupied and the heating was off. E.g. my bedroom is off all day in winter but it will warm up as much as 5 degrees in only an hour, just before bed time.