Use 'away' preset with valves and no thermostat?

Hello,

Long time reader, 1st time poster. I use Netatmo smart valves on my heater (appartement, common heating, no thermostat). and successfully integrated them in HA through HomeKit.

I can check the status of each valve, set individual temperatures, all is perfectly fine.

What I am trying now to do is automate the use of CLIMATE.SET_PRESET_MODE when leaving my home : this is a feature that is available from the Netatmo app.

I have tried calling this service, but no areas / devices / entities are available in the Button card UI. When forcing an entity_id in YAML. When forcing entity_id to all, I get no error message but nothing happens.

show_name: true
show_icon: true
type: button
tap_action:
  action: call-service
  service: climate.set_preset_mode
  target:
    entity_id: all
  data:
    preset_mode: away
name: Heating_away
hold_action:
  action: none

The available attributes I can see in Dev tools > States is

Is there a way to toggle the away mode in HA without a thermostat ?

Thanks _

It looks like the Homekit integration does not support the presets, as there are no preset modes listed in developer tools.Also there are no other hvac modes than heat. Best you can do now is set a very low target temperature when you’re out.

Thanks, just wanted to make sure with you guys !