Control zone1/2/3 valve and pump without multizone module?

[pozsothereal]

Hi,

It would be great,if the 3 climate can control 3 output entities based on 3 ntc temperatures, 2sensor input is already availabe at the main panel as i saw.
-Genus One-
TA1; TA2(floor) <-it can be definied.

So 2 can be great for now without additional hw.
Could it be done via communication log inspection? Could you please guide me a bit?

The multizone control 3318628 communicating
via bridgenet as i saw.

Thx!
p.

[pozsothereal]

So this ntc temperatures can show up as entity if i install and configure it on boiler? For example i would use the TNK sensor temperature.. thx!

[hellcatmon]

How you plan to use TNK data if you have it?

To increase number of zones you have at least two options:

1. The way you asking right now - handle heating with a gas boiler software. In this case you could try to utilize TNK (not sure that is good idea. This input for heat water and it could be some issues from the boiler software because room temperature and hot water temperature are too different) or use recommended hardware by manufacturer.
2. Add as much zones as you needed with Home assistant and control heating with your custom automations/rules. The main idea: You need any temperature sensor for zone and you have a heater (the boiler) for operating. Handle heating by the zone sensor. If temperature is less than you needed -> trigger the boiler for heating (with necessary parameters) and when it's done - just turn off.

The second option needs some knowledge of home assistant and automation (NodeRed could be helpful for non code programming). You also need to synchronize boiler heating settings with your custom zones heating mode. It could be a hybrid mode (boiler software will control zone 1 and zone 2 and your automation will control zone 3) and so on.
Or you could redefine whole heating scenarios and use the boiler as a 'dummy heater' - whole logic will be defined on your side (turn the boiler on -> send necessary heat to direct zone/zones -> turn the boiler off).

The hardware option is more stable and fail tolerant, while the second option is highly customizable and at the same time it will not work in case of any issues with connection or problem with Home assistant where all custom logic/rules are placed.