Add support for HitachiAirToWaterMainComponent / HitachiHeatingSystem (modbus:YutakiMainComponent) (Yutaki S)

[xorassistant]

• I have read the README, including the advanced section regarding debugging.

Device information
There are 4 functions wHICH you can add to the device with the Somfy Tahoma app.
The Holiday function is a function we do not use with the thermostat, because this is a heatpump which is always on.
See the attached screenshots for the Tahoma app features

1. auto mode

Monday till Sunday (weekdays)
From & Untill time
Possible to set time+temperate value
OFF function
2. manual mode
SET manual temperature
3. off

Device details

• Hub: [Somfy TaHoma]
• WITH the latest version of firmware

2021-02-12 06:35:36 DEBUG (MainThread) [custom_components.tahoma] Unsupported device detected (modbus:YutakiMainComponent - HitachiHeatingSystem - HitachiAirToWaterMainComponent - modbus://1233-4770-7251/4002825/1#1)
2021-02-12 06:35:36 DEBUG (MainThread) [custom_components.tahoma] Unsupported device detected (modbus:YutakiV2Zone1Component - HitachiHeatingSystem - HitachiAirToWaterHeatingZone - modbus://1233-4770-7251/4002825/1#2)
2021-02-12 06:35:36 DEBUG (MainThread) [custom_components.tahoma] Unsupported device detected (modbus:YutakiRoomThermostatZone1Component - HeatingSystem - HitachiThermostat - modbus://1233-4770-7251/4002825/1#6)
2021-02-12 06:35:36 DEBUG (MainThread) [custom_components.tahoma] Unsupported device detected (modbus:YutakiRoomThermostatZone2Component - HeatingSystem - HitachiThermostat - modbus://1233-4770-7251/4002825/1#7)

Device commands

HITACHI HEAT.zip

Auto

Manual

Off

Settings

Somfy function

Tahoma heat

Hitachi products

[iMicknl]

Thanks for reporting, @xorassistant! Currently there are 11 open device requests thus it can take a while before we have time to implement this.

It would help if you are able to call the tahoma.get_execution_history in Home Assistant. This will print your history to your log, thus you are able to understand how different commands are executed. A great example of an issue where they used this is #376.

The log should look like:
2021-02-12 11:56:00 INFO (MainThread) [custom_components.tahoma] 2021-02-05 17:39:47: setIntensity executed via Home Assistant on io://xxxx/xxxx, with [70].

[iMicknl]

@xorassistant apparently, this has the same characteristics as #370.

Could you give https://github.com/iMicknl/ha-tahoma/archive/feature/support_hitachi_PumpAirToWaterMainComponent.zip a try? Extract this file and place custom_components/tahoma in your custom_components folder.

[xorassistant]

@iMicknl

This version works for reading the temperature of the Hitachi device.
So looks likes this is a good way forward I have put two screenshots in the Hitachi.zip file.
And also some debug logging

HITACHI.zip

[iMicknl]

Thanks @xorassistant. Via the original app, are you able to set values like 23.5? Looking at your logs, it requires a full number (int) instead of a comma number (float).

You could try the latest version (https://github.com/iMicknl/ha-tahoma/archive/feature/support_hitachi_PumpAirToWaterMainComponent.zip), which should resolve this issue. Not sure yet if we should round it up or down.

setRoomAmbientTemperatureControlZone1() : Invalid value for command parameter p1 : expected integer value but got 21.0
Cannot connect to host tahomalink.com:443 ssl:default [Connect call failed ('178.32.15.131', 443)]
setRoomAmbientTemperatureControlZone1() : Invalid value for command parameter p1 : expected integer value but got 23.0
setRoomAmbientTemperatureControlZone1() : Invalid value for command parameter p1 : expected integer value but got 24.0
setRoomAmbientTemperatureControlZone1() : Invalid value for command parameter p1 : expected integer value but got 23.5

Do the presets / other functions work?

[xorassistant]

@iMicknl

The newest version you send works, only if I set is to value 23.5, Then it shows as "value 23"

And with the original Tahoma app it's not possible to set values like 23.5.
It's only possible to set values like "20", "22" etc

[iMicknl]

@xorassistant should be fixed in latest version! https://github.com/iMicknl/ha-tahoma/archive/feature/support_hitachi_PumpAirToWaterMainComponent.zip

Do auto vs heat (manu) work as well? And same for the presets.

[xorassistant]

@iMicknl

The heat function is not working, and also the presets (Auto, Comfort) are not working.
When choose "Comfort", then it's jumping back to "Auto".

heat-function-error.txt

[iMicknl]

@xorassistant oops, the mapping was reversed... Could you try the latest version? (https://github.com/iMicknl/ha-tahoma/archive/feature/support_hitachi_PumpAirToWaterMainComponent.zip).

It should fix the preset / operation mode, but also use a 1 degree stepping for the temperature.

[xorassistant]

@xorassistant oops, the mapping was reversed... Could you try the latest version? (https://github.com/iMicknl/ha-tahoma/archive/feature/support_hitachi_PumpAirToWaterMainComponent.zip).

It should fix the preset / operation mode, but also use a 1 degree stepping for the temperature.

@iMicknl yes with this version the Heat functions properly as the "manual" mode.
Also the temperature is now using a 1 degree stepping!
Looks like the Eco/Comfort is not an option for the heatpump type we have, this keeps jumping back to comfort mode.
But it's now possible to adapt the temperature and it's syncing with the Tahoma! awesome!

[iMicknl]

Cool! Anything you miss, or can we consider this device implemented correctly? 🥳

I will try to see if we can pull the available presets per device, so it will only show if your device supports it. But not sure if this is possible.

[iMicknl]

@xorassistant I just pushed a new version, apparently there were some mistakes in the temperature control. Could you give it a try?