DAIKIN three-phase sensors

[oraello]

Hi all,
first of all, many thanks to @raomin for this great project.
I have some problem to get the right sensors to calculate the power and then also the COP.
I have a Daikin Altherna 3 H/HT, ETVX16S23DA9W/EPRA18DAW1 that is three-phase - 400 Volts powerd.
I get values from {0x21,2,101,2,1,"Voltage (N-phase) (V)"}, and {0x21,0,105,2,1,"INV primary current (A)"}, but the power calculated in this way is too low, so possibily this sensor can be related only to 1 phase.
Any idea how to get the right values?
The backup solution of course can be to use an external power meter, but I would like to solve everything with internal sensors.

Enrico

[TRIROG]

Did you solve this?

[oraello]

No, now using an external power meter

[mx-vatte]

My primary current (A) value is also 1/3 from the expected and compared value with a power meter.
As solution I simply multiply the primary current (A) value by 3.

@oraello can you confirm the result multiplied by 3 "equals" your external power meter reading?

[oraello]

Could be. I will check as soon as possible, I have to reconfigure sensor ad move the power meter on that line (now is measuring the entire boiler room). Il giorno gio 22 giu 2023 alle ore 11:13 mx-vatte ***@***.***> ha scritto:

…

My primary current (A) value is also 1/3 from the expected and compared value with a power meter. As solution I simply multiply the primary current (A) value by 3. @oraello <https://github.com/oraello> can you confirm the result multiplied by 3 "equals" your external power meter reading? — Reply to this email directly, view it on GitHub <#178 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A32BIP42LTH7UKYRG7BFI3TXMQEELANCNFSM6AAAAAARQBDMKY> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[theailer]

My N-phase voltage is all over the place.
My pump is a EBLA11D3W1, which is a three phase mono block and I had to add the register to the definition file so maybe that's the issue.

Should it look like that, I'm guessing the N-Phase voltage should be the voltage between neutral and phase which is like 230V?

[theailer]

I read through the discussions here and it seems that N-Phase voltage is the voltage after the transformer in the heatpump.
And INV secondary current (A) is current after the transformer. So in my simple mind we should just change the primary to the secondary current?

[TRIROG]

Ha? So which do we need?