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raomin / ESPAltherma

Monitor your Daikin Altherma / ROTEX heat pump with ESP32
MIT License
317 stars 105 forks source link

Support for Warm Water Heatpump Daikin-Altherma-M-HW EKHHE-(P)CV3 #272

Open hwinkel opened 1 year ago

hwinkel commented 1 year ago

Are the warm water heat pumps EKHHE-PCV3 EKHHE-CV3 also supported ?

blablaaddi commented 1 year ago

Trying to find esp support as well. thy are also known as Daikin-Altherma-M-HW.

hwinkel commented 1 year ago

Was also trying to find someone owns this WP to have a look on connectors and PCB.

hwinkel commented 1 year ago

At least I found the PCB Description which show a CN22 for WLAN Module and some other connectors, but they have different names as the usual ones.

image
KalaNagHTD commented 1 year ago

Looking at the PCB layout, terminal identifiers and setup parameters of this tdhw heatpump it seems to be very unlikely that ESPAltherma will support it.

https://github.com/raomin/ESPAltherma/discussions/162

donwolle commented 7 months ago

hi, did anybody test it with this heat pump?

is there another way to get temperature information of atherma m hw 260?

donwolle commented 7 months ago

20231110_100610

Should i try the Red Port?

20231110_100619

roboticsalign commented 1 month ago

20231110_100610

Should i try the Red Port?

20231110_100619

Did you try it?

raomin commented 1 month ago

Looking at the description, I would give cn21 a try... What is connected to it?

roboticsalign commented 1 month ago

It's the blue one. In my case, it's unconnected. 20240514_173647.jpg

roboticsalign commented 1 month ago

It's the blue one. In my case, it's unconnected. 20240514_173647.jpg

It's not working. I compiled the default Header file and connected the esp32 to CN22 and CN21. In both cases I get a timeout error.

Now I operate in boost mode (heat pump and coil) with two switches: one is switching the coil power supply, the other one the Daikin in total. This way I can control [off; hp; HP + coil], but I have no access to the internal sensors.

Do you have any recommendations for improvements?