Altherma 3 R ECH2O

[rob570]

Hi to everyone and Thank you Raomin for your project. I've configured ESPAltherma for an Altherma 3 R ECH2O. I've used Top-Grade.h with two fixes. I'm not able to find the registry for querying:

1. mixed temperature (R7T) the one found in other definitions don't work (always 0): {0x64,10,105,2,1,"Mixed water temp."},{0x64,10,118,2,1,"Mixed water temp.(R7T)"} -- Sorry I've seen many requests in discussion. Unluckly still no answer.
2. Tank Valve (M1S)
3. Bypass Valve (M2S)

Here what I fixed in the description:

• {0x20,0,105,2,1,"Outdoor air temp.(R1T)"} should be {0x20,0,105,2,1,"Outdoor air temp.(R6T)"}
• {0x64,7,105,2,1,"Boiler Heating Target Temp."} it is the SH Water Heating Temp

Could anyone help me? Thank you, Roberto

[maromme]

I found those somewhere here in the discussions:

{0x63,8,105,2,1,"[HPSU] Mixed leaving water temperature after the tank R7T (DLWA2)"},
{0x63,10,101,1,-1,"[HPSU] Tank valve position (0:Bypass 100:Tank)"},
{0x63,11,101,1,-1,"[HPSU] Bypass valve position (0:Bypass 100:Emitter)"},
{0x20,0,105,2,1,"R6T"},

[lfrancke]

Maybe these are helpful for you as well: ech2o.csv

[rob570]

Dear Maromme and Ifrancke, thank you for helping and sharing. I'll try next week and I'll give you a feedback. Have a nice day, Roberto

[rob570]

Hi, I can confirm the settings provided work! Thank you for your reply. I attach a new definition file (renamed to csv) based on your information. ALTHERMA(ECH2O).h.csv Roberto

[simonebortolin]

@lfrancke @rob570 why {0x62,11,405,1,1,"Water pressure"}, and not {0x62,11,105,1,1,"Water pressure"},

the conversion 405 is only for the R32 gas inside the refrigerant circuit.

[rob570]

Thank you Simone, That's why even after pulling the breaks on 405 conv ( https://github.com/raomin/ESPAltherma/pull/325 ) I've got wrong values. Grazie!

[simonebortolin]

how many Italians with this heat pump!

[simonebortolin]

~I am only missing the two 3-way valve values...~

Only Refrig. Temp. liquid side (R3T) is Wrong

[danilo-quadrelli]

Hi, I can't confirm the settings provided work! In my case: {0x62,11,405,1,1,"Pressione acqua"}, return Pressione acqua: -51.1813 (Daikin 1,3 Bar)

{0x62,11,105,1,1,"Pressione acqua"}, return Pressione acqua: 0 (Daikin 1,3 bar)

and:

{0x63,10,101,1,-1,"[HPSU] Tank valve position (0:Bypass 100:Tank)"}, {0x63,11,101,1,-1,"[HPSU] Bypass valve position (0:Bypass 100:Emitter)"},

[HPSU] Tank valve position (0:Bypass 100:Tank): 0 [HPSU] Bypass valve position (0:Bypass 100:Emitter): 0 (Daikin 12%)

Thank you

[simonebortolin]

In my case:
{0x62,11,405,1,1,"Pressione acqua"}, return
Pressione acqua: -51.1813 (Daikin 1,3 Bar)

{0x62,11,105,1,1,"Pressione acqua"}, return
Pressione acqua: 0 (Daikin 1,3 bar)

Molto strano, a me torna il valore corretto

{0x63,10,101,1,-1,"[HPSU] Tank valve position (0:Bypass 100:Tank)"},
{0x63,11,101,1,-1,"[HPSU] Bypass valve position (0:Bypass 100:Emitter)"},

pure queste a me tornano corretti i valori, che modello di ECH2O hai?

[danilo-quadrelli]

Daikin Altherma 3 R ECH2O:

EHSXB08P30DA

[simonebortolin]

vecchia elettronica, potrebbe essere molto diverso da quelli dalla serie nuova con eye

c'è roba da prendere con il connettore CAM