How to setup Zehnder Comfoair Q Boost mode?

Configuration
1

Hi,

I have a Zhender, and i use the ComfoairQ component.
I can set up the fan speed to low, medium, high, but i would like to setup the boost mode.

Is there a way to do that ?

Regards

2

Hello Vincent,

Unfortunately I cannot give you an answer to your issue, but maybe you can tell me if the possibility of controlling the fan speeds is provided by installing the according home assistant module etc. or is there any other work to do beforehand?

Actually I want to make my Zehnder Q450 controllable via Homekit to adjust the fan speeds depending on the situation e.g. away, low humidity etc. Just therefor I would setup a home assistant on my Raspberry Pi which in parallel runs Homebridge.

Regards,
Jan

3

Hi Jan,

If you have a confoconnect lan module on your confoairQ and the home assistant module, you can get values of different sensor of the confoairQ, and you can change the fan speed between low/medium/high.

So yes you can do it, like you go in the zhender app to change it.
But, it is in my opinion not really usefull because i have made some programmation based on hours of the day in the zhender app.

The real interesting is the boost (who is the high speed) but when you select the boost for x hour, it will turn x hour even if you have a programmation who say other things, … it seems that boost is not implemented in the hass module.

Regards

4

Vincent,

I got it running. Which sensor are available in your configuration.

In mine I only have inside and outside temperature. However, I most interested in temperature if the supplied air.

My plan is to setup an automation that in case the supply air drops below 21*C the fans speed is reduced. I already do this based on the outside temperature. Further I use the inside hunidity measured with another sensor to set the fan speeds accordingly so that the air does not get too dry.

I know that there are actually all values available you can see in the app, however there no documentation how to mirror them into HA.

Regards
Jan

5

Hi Maschbaer,

I also see only the inside and outside temperature, and would like to know the inside and supplied temperature, but i’m not sure it exist (maybe we should contact the component developper to add it ?)

In my case i use it only the for displaying info, i have no specific programmation in hass, jsut all info, to make a quick check of the airflow (it help to know if the filters are good, when filters are dirty, airflow slow down drastically)

In the Zhender app, i just made a programmation to set the speed level to 1 during the day and 2 during the night (in the summer) and i mannually change to the opposite for the winter.

Regards,

6

Hey Vincent,

there is another thread in which they are discussing the Zehnder HA plugin. In there it is mentioned that there are actually more sensors available. However the sensors module must be extended and there is no documentation.
Maybe I will find time over Christmas to have a closer look.

https://community.home-assistant.io/t/zehnder-comfoconnect-component/82522/4

Jan

7

Hey Vincent,

I just noticed that they have updated the Zehnder Plugin:
https://www.home-assistant.io/integrations/comfoconnect/

As you can see, now there are a lot more sensor available. However, I am not at home over Christmas to give it a try…

see you
Jan

8

how. really interesting, … it seems that we can now have the 4 temperature sensor.
i will try that soon

9

It works for me :+1:t2:

10

for me too … it’s great, but i don’t see something for activate the boost mode

11

Hi Vincent have You managed how to trigger boost mode ?

12

@Vincent did you manage to get the boost function to work? I also wonder if someone has an example of a lovelace card to control the fan speeds

13

Hi, i did that but this requires some modification of comfoconnect module python file.
I don’t have lovelace card to control it because I bought remote buttons by Aqara and I use them to control it.

Modification depends on comfoconnect module and HA version.

14

Does anyone know if the bypass state could be controlled for passive cooling? I would like to active it based on external sensors/room thermostats.

15

I’ve made a request to add new commands (including bypass) and sensors into HA zehnder component as there are avalaible in the pycomfoconnect library…
Here is the link : Add all other sensors in comfoconnect

16

I have comfoair q350 - lan connect C and hassio.
I installed some sensors on my frontend but the button to regulate the fan speed only allows me to switch on/off only.
Inside the entity properties there are off-low-medium-high choices but i’m not able to build a button in lovelace showing those steps. I travelled on internet several days without success; can you explain how to have a button controlling hte speed
Thanks

17

i’ve not try it for the moment, but it should work if you call the fan.set_speed service

18

thank you for you prompt reply; in my system I only see sensor.comfoairq_supply_fan_speed - I’m not an HA expert, is it possible to create the enrtity you mention?

19

in HA, if you go to developpement tools, and then to services, and then if you type fan. you should see all fan methode, then select the set_speed
under that, (in the entity field), type fan. then you should see fan.comfoairq

if you see that, normally you can test the call of the service, if it’s working, you need to make the same call behind a button

if you didn’t see that, maybe you confoairq is not installed correctly

(i have the q600 with a lan connect c, i suppose this is exactly the same with your q350)

1 Like
20

it works, fantastic, thank you Vicent