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Temperatures from compressor module #134

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bwindsor opened this issue Oct 16, 2024 · 1 comment
Open

Temperatures from compressor module #134

bwindsor opened this issue Oct 16, 2024 · 1 comment

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@bwindsor
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Firstly, thanks so much for this project, I've been using data from it for the last year and it's been brilliant. I have the Altherma 3 EDLA09DA3V3. I notice in the user manual it mentions 5 thermistors in the compressor module.

Screenshot_20241016-124130

I can see the 4 "hydro module" thermistors fine. I can also see outdoor air temperature and "refrigerant_2" which looks like it may be
R4T of the compressor module, but could be R3T or R5T. My question is do you know if these remaining temperature sensor measurements are sent over P1P2 and therefore may be accessible in some way?

I am running older firmware but from a brief look through the code I can't see a mention of any other refrigerant temperatures, and references like "R1T" seem to refer to the hydro module not the compressor module. Thanks!

@Arnold-n
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Sorry for my late answer - I think your analysis is fully correct. We have not yet found the missing compressor module sensors in the P1/P2 data. There is a small chance that these are communicated in the "packet 15 parameter data" which so far was not reported but as of today's P1P2MQTT-bridge v0.9.57 is reported as Param15_Temperature_* values.

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