Daikin ECH2O - external unit ERWQ02AAV3

[nosfaratu]

good night guys!

I have a daikin ECH2O external unit ERWQ02AAV3, and I would like to know if someone has already done the integration using this method. It's just that some flyers say it's Altherma.

I can't find any board information in the instruction manuals.
And not to be opening the machine in vain, first I wanted to know if someone has already tested this outdoor unit. Or if it is possible to use.

I have all the material, I just need to know if it works or not

Thanks!

[KalaNagHTD]

It will work! The connection has to be on the board A1P of the internal unit (HPSU/ECH2O). The A1P is hidden behind the BM1 board.

https://github.com/raomin/ESPAltherma#8-pin-x10a-connection

[nosfaratu]

Thanks! The outside unit is ok. This is my indoor unit. Does it work too? Is everything ok with you ok for me to do the tomorrow? :D
And the outside unit

[KalaNagHTD]

I am very sure it will work! You have ro find the A1P board with the X10A connector inside the electronic box of the inside unit.

[nosfaratu]

ahah more simple its impossible!

I will configure the ESP32 and test!

[nosfaratu]

I can't configure this..
As much as I try to insert the includes, I don't see any sensors..
I am using a wroom esp32 devkit.
in mqtt itself, the message appears that there is no include.
can you provide your config to test?

[KalaNagHTD]

Your problem has nothing to do with your Daikin hardware! You first have to get your ESPAltherma running correctly.

[nosfaratu]

Yes, I know it's the configuration. I'm having problems with the configuration of the program..:/

[nosfaratu]

Esp well configured, give me the error "Time out! Check connection"

Is the beginning of the numbering correct?
I've changed cables twice and nothing.

[KalaNagHTD]

Correct!

[nosfaratu]

Well.. I managed to get this working!
My altherma despite saying daikin, is Rotex, so I had to #define PROTOCOL 'S' Also select the def/PROTOCOL_S_ROTEX.h .
and had the wrong rx and tx connections..

The sensors that appear to me are just these.

Is there no possibility to add more?