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anerdins / nibepi

Backend for Nibe F series heatpump
MIT License
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Corrected F730 reg 43141 scale factor. x10. #35

Open AndersHoglund opened 8 months ago

AndersHoglund commented 8 months ago

Nibe F730 modbus register 43141 value , compressor input power, seemed too low. Got 63W at 80% frekuency. Asked Nibe Support and got this reply:

" Hej och tack för ditt mejl till NIBE Uplink. Vi har undersökt viadre pch svaret ni fär är i 0,01kw=10w så värdet ni läser skall gångas med 10. "

This might very well hit other models and possibly other register values as well. Not handled by this PR. /A

AndersHoglund commented 7 months ago

Turned out the "factor" is not a multiplier but a divisor, fixed. Also reg address 43375, cmpr mean power, is affected by the same scaling, fixed. All models with 43141 and 43375 probably also affected, F1155, F1255,F1355 and F750 fixed. Now tested on my F730 via NibePi to my HA instance. Screenshot 2023-11-09 at 16-26-22 Nibe – Home Assistant

AndersHoglund commented 7 months ago

Updated files also exists in docker/nibepi/models, updated too. Why this duplication?

AndersHoglund commented 7 months ago

Confirmation from Nibe Support :

Hej och tack för ditt mejl till NIBE Uplink.

Det gäller för de enheter med en inverter styrning .

elupus commented 6 months ago

I can confirm this. We have this adjustment in nibe python lib too: https://github.com/yozik04/nibe/blob/3eb7b88cb7e61553bbf3d53831a17faba7cb4b61/nibe/data/extensions.json#L162