New feature for iTRV's

[Sjhridnehhxhen]

Anyone else want to have a TRV that could control flow to a radiator to a certain temperature, but not be able to do a call for heat?

I have 10mm piping so running heat to just one radiator, does not give enough flow. So the hallway radiator is always on as is the ensuite via a standard TRV

I'd prefer the hallway to be open between x and y, and the ensuite to be the opposite.

Maybe something that could be added to the software roadmap

[MrK1314]

That would be perfect for my use case. Hopefully Wiser read this

[IS7]

I would definitely use this feature.

A link to my post about this

https://community.se.com/t5/Schneider-Electric-Wiser-Forum/Can-a-Wiser-TRV-Be-Opened-amp-Closed-With...

[RHS]

Agreed, it would hugely increase the flexibility of the system.  

I have a radiator which I want to control (via a Wiser TRV) but don't want the ‘demand’ for heat to fire the boiler, but simply allow the circulating water to flow and only give heat if there is a demand from elsewhere.  

Of note, whenever I instal a Wiser TRV the room I have to assign it to asks for which channel and does include an option for ‘None’. However, if this option is selected the TRV remains hidden in the App and therefore cant be controlled! 🤔

[David_SE · Accepted solution]

Thanks @Sjhridnehhxhen for your post.

Same answer as @IS7 's post : the behaviour you want to have on your installation. In the coming releases of the Wiser Home, you will be able to decide whether a heat demand on a room will trigger the boiler or not.

[Nuuki]

Has this feature now been added to Wiser Home? I see that in the one configuration I can edit the Channel, and I thought that setting that to None would be the right way to stop the zone calling for heat, but that makes the zone non functional so I'm guessing not.

[Joe_123]

Is there an update on this please? I'd love to know when it's going to be rolled out

[Nuuki]

Hi @David_SE. It's now 18 months since you imdicated that the ability to configure call for heat on a per room basis was coming soon. Can you please provide an update on the status of this feature, which is referenced across a number of posts.

[David_SE]

Hi @Nuuki ,

Sorry to forget to inform you. To call for heat on a per room can be set in the settings of the room.

You need to go in the room details and Configuration \ Channel then select "no channel" (for example, if you don't want to start your heating system for that particular room).

BR

David

[Nuuki]

Hi @David_SE . Firstly many thanks for the reply.

When I first got the system I actually did try setting the room channel to None, on the assumption that doing so would disable call for heat for that room. However it turned out that without a channel linked, the TRV didn't work at all. Checking the documentation, it states the following:

"None - You can select this option, if the room does not need to be heated."

That describes my experience, and there's no mention of using that setting as a way to control Call for Heat behaviour.

Can you confirm that this behaviour has in fact changed vs how the settings previously worked, and is documented?

[David_SE]

Hi @Nuuki ,

I didn't understand why you put a documentation link to AirZone device, is it a device you have ?

However, we detected an issue of using the "None" channel when installation contains iTRV & boiler relay. Then user is not able to control the room tempeature through the app but only manually on the iTRV.

Sorry for that.

BR

David

[Nuuki]

Hi @David_SE,

Sorry for the confusion on my side - those docs seemed to describe the same functionality, but you're right that they're not for the relevant product.

I'm still unclear - can you confirm if setting Channel to None for a zone is intended to result in that zone no longer calling for hear whilst continuing to regulate its valve? That didn't used to be the case, and I don't see any documentation of FAQs that back this up, but are you saying this is how it should now work?

However, it sounds like even if intended, this isn't working in practice at the moment - if you can't actually control the room temperature in that config. Is this being worked on as a bug / issue, and can you keep us updated on progress please? 

[peskdale61]

Hi @David_SE - will this issue with being unable to control temperature using app when using the "None" channel be fixed in a future update?