[APP][Pro] myVaillant - Comfort for your home

Added support for the VRC 700 in te latest test release 1.2.0, hopefully it will work :slight_smile:
You have to remove the zone/thermostat from homey and add it again.

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I do have a question, I already asked this to Vaillant itself as well.

Is it possible to make the outside temperature available with the VR940F, so you use the internet temperature as the “buitenvoeler”, and then use the “stooklijn” for the most comfortable and energy low heating?

I am interested.

Great! It works!
Thanks!

Can you maybe add the outdoor temp?

Regards,

Tim

Great work!

Is it possible for you to also read out the hot water temperature?

Thanks for the app.

I’ve an almost similar setup:
AroTherm plus vwl 75/6
Hydraulic Module MEH97/6
Inventum Maxtank 300L
SensoNet VR 921
SensoComfort VRC720

This workes fine. I do get the actual hot water temperature from the boiler and the outside air temperature.

Yesterday after the update to the new version with support for multiple countries, the communication between Homey and the heatpump/thermostat stopped working. I could only restore it by deleting the devices and adding them again. Restarting Homey didn’t help.

Is the shown power consumption the total of heat pump and the backup heater element? In your case in the Unitower and in my case the MEH97/6? Or only the heat pump?

I’ve just tried changing the requested room temperature for Zone 1 in devices. When I change from 20°C to 21°C, the screen in het app turns orange and the new value appears on the VRC720. However, after a few seconds the Zone 1 shows 20°C again, while the VRC720 still is set at 21°C.

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@sschot No, pushing outside temperature data won’t be possible. But it is maybe possible to simulate the working of a heat-curve. By setting the heating circuit temperature based on a from internet retrieved outside temperature. Will take a look if I can add an action card for setting the heating circuit temperature.

@TimVW For heatpump setups this is already possible, you could try to add a heatpump device. No clue if something will popup. But it is worth a try :slight_smile:

@Jochen_Zink Yes this is possible, I’ve only added this now for heatpumps. But it could be possible it works for more systems, so also worth a try to check if you can add a heatpump device? What is you’re heating source and model number?

@Melvinius Great to hear that the basics works!
Yes, I’m afraid that re-adding the device to fix will happen more often
 This is my first Homey app, and it is not very easy to add or change capabilities of devices you’ve already added.

In sums up the power consumption of all connected devices that returns there power consumption. Pretty sure this will include the power consumption of the MEH97/6.

Yes I see, this is a small bug when veto temp is active. Will fix it.

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Thanks! It works now.

Wow, looks like i got my 940F-module at the perfect time (just finished installing today). Thanks a lot for your app, i was able to connect without any problems, so you can add the 940F as compatible device too.

My intended use at the moment is to set the modus to ”auto” or ” heating off ” depending on my location. I see thats not possible atm. When i activated the ”heating off” on my thermostat and afterwards i activated a flow to increase the temperature, and it re-activated my thermostat, but the set temperature is only for 6 hours. My intention is to reactivate ”auto” at that point. Would that be possible?

Happy to help testing from belgium. I tried to add a heatpump to get my outsidetemperature, like you suggested, but the temperature is indicated as ” - ” last updated 55 years ago.

Ok, main heating works. TYVM!

I wonder whether it is possible to also add Domestic Water control and recuperation?
I can provide API responses if needed.
HomeAssistant provides entities for Vent Boost/ water boost as part of VR720
I can try to make PR as well
Thanks for an app again


This is exciting, I am happy to test for Glowworm control here. I did try to use the UK Vaillant Login but, as expected, it failed.
Thank you

Hi,

I added my VR921 module as a heatpump pump but there is no data altough I can see the data in the MyVaillant app. Any idea?

regards,
Tim

He, this morning I’ve added a new feature to the app to collect logging and api response data.
Off course this option is not enabled by default. The data is only shared when you enable the feature and restart the App. :slight_smile:

App Settings page:

You have to restart the App for the changes to take effect!
And you can share the logging id with me to help me debugging :grin:

@Dracoignis adding an action card to set a the heating mode of a zone should be easy. Will add this feature soon. :wink:

@semolex I’m not familiar with the recuperation options/settings. Will take a look at the HomeAssistant code.

@Quirkafleeg Haven’t heard of Glowworm before. Is this the Vaillant hardware sold with a different badge? I know Vaillant is also sold in the UK.

@TimVW Hmm, interesting no data at all. Could enable the logging feature and share you’re logging id? That will help me figure this out :slight_smile:

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1699ac31-cee7-478e-96cd-87bd644c0cfb

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I see that something went wrong with you’re Vaillant login token. The application get errors when connecting to the Vaillant api. There is no option yet to reset the login credentials. Only way to try to fix this is to uninstall the application and add you’re devices again.

Hi,

Diagnostic report:
66a37c80-fbed-4e82-a4f2-5d408b50a7ca

Logging id:
e609d5f8-5e64-4551-8612-8ec6525b06a4

Regards,
Tim

Logs ID:
d0840902-ade5-4d88-aef3-94dbbddce931

Thanks for sharing, found the issue. Just pushed a fix in version 1.4.1.
The code crashed because no data was found for domestic hot water.

The new test version also include now a device repair flow. This let you login at the Vaillant api without uninstalling the application and breaking existing flows :slight_smile:

Not yet pushed, so awaiting for 1.4.1
I have no issues right now, but I only have the device added, without any actions or flows for the moment

Added the set heating mode action card in version 1.5.0

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