heads always open at max

[GasDeKu 2]

hi,
Is it possible to set the heads so that they remain always open at the maximum without being influenced by the programming? tnx

Edited August 23, 2018 by GasDeKu

[adyboss 11]

Put them in vacation mode or take them out from heating panel zone

[GasDeKu 2]

OK thanks.
But it is not possible to open it completely es. Manufacturer Specific in this mode.
I live in a condominium and leaving it open completely in the summer would facilitate the cleaning of the heating system.

[petergebruers 1,268]

9 minutes ago, GasDeKu said:

I live in a condominium and leaving it open completely in the summer would facilitate the cleaning of the heating system.

 

To elaborate on what @adyboss said.

 

You can programatically set them to open/closed or temperature control. The device will still respond to commands and so there is some battery drain.

 

When you buy these, they are in "standby mode" and fully open. And by clicking the button on the device, you can put it back into standby while leaving it on the valve. Very low battery drain but no remote control.

 

When battery is almost empty, previous FW versions opened the valve before turning itsenf off. I do not know about the recent 4.4 yet.

 

Does this help?

 

[GasDeKu 2]

it could be a solution, but I understand that this mode is activated only by physically acting on the device.

Considering that these are rechargeable devices, in the future we could also consider a software option.
Maybe even simply opening the valve to the max indefinitely.
Thanks to both for the help.

 

 

 

 

[petergebruers 1,268]

11 minutes ago, GasDeKu said:

I understand that this mode is activated only by physically acting on the device.

Indeed.

 

11 minutes ago, GasDeKu said:

Maybe even simply opening the valve to the max indefinitely.

 

Maybe it does already do that... but I am not 100% sure how certain you would like to be and what you mean by "open". Is that "maximum water flow" or do you mean "no pressure applied to the valve actuator"?

 

When in normal operation, it runs a "descale" cycle every week, which is actually a calibration. And I am reasonably sure the calibration detects the "in" and "out" points of the valve (probably by measuring the current needed to operate the motor). This is speculation, Fibaro does not give details and if they would, I would be allowed to post them. But it makes sense, because the algorithm has to know 0% = fully closed and 100% = fully open and that depends on the make/model/age of your particular valve.

 

So I'd say... for your purpose, setting the FGT to "MAX" in the BUI or app, is equivalent to "fully open". Or actually setting it to 30 °C assuming it never gets that hot in the room would have the same effect.

 

Edited August 23, 2018 by petergebruers

[GasDeKu 2]

your reasoning is perfect.

The need to have the valve always open regardless of the fact that it can facilitate the passage of the liquid that cleans the entire central heating system.

So given that if I put them in fully open the valves after a certain period always resume the schedule, all that remains is to activate the stand by modality.

 

Actually I have the valves (6) since yesterday and I do not know well the dynamics of these devices ... be patient.

Edited August 23, 2018 by GasDeKu

[petergebruers 1,268]

27 minutes ago, GasDeKu said:

So given that if I put them in fully open the valves after a certain period always resume the schedule

It returns to the previous setting after 4 h (that's a parameter) by default indeed.

Possible solutions... Lua script to keep it open... Use Lua "schedule override" (I have to check my notes).

Or use the "heating panel" and set the schedule to "holiday mode" then select 30 degrees... It'll stay in that mode until you turn that mode off by revisiting the heating panel.

Edited August 23, 2018 by petergebruers

[GasDeKu 2]

in fact for now I put in 30 degrees holiday mode, even if the opening of the valve will not always be at best (today I'm 34), then I'll do a script.

[petergebruers 1,268]

OK! BTW I recommend you to update them to the latest firmware, 4.4.

 

LUA:

 

Please login or register to see this code.

 

[GasDeKu 2]

done on all 6 devices last night 

[wienog 107]

A little hijack of this thread to ask a question i4m struggling with: the classic situation: roomthermostat in the living room, FGt's on all radiator sin the house.

Room thermostat shuts off the boiler because the set temperature is reached but the temperature in the sleeping rooms or bathroom is not (yet) reached and will never be reached this way.

So, is there a z-wave thermostat that will keep the boiler on or switch it on if one (or more) TGF's want more heat , even when the living room is at the desired temperature (and held there bij the TGF's closing down slowly or completely) ?

Anybody has experience with such a setup and one of the existing thermostats on the market ?

[petergebruers 1,268]

37 minutes ago, wienog said:

So, is there a z-wave thermostat that will keep the boiler on or switch it on if one (or more) TGF's want more heat

Actually that does not exist. It has been discussed a few times. What other users want: a device which detects if one of your TRVs (like FGT or Danfoss) is open then turn on the boiler.

 

I can give pointers to topics that present VD and/or scripts to do this (but I have to look them up). As a workaround.

 

But there are no boiler or room thermostats that communicate directly with TRVs.

 

I have debated this, and I also have explained why I do not have scripts. I do not have a room themostat either.

 

You may think I am an unpleasant person, but I do not wish to debate this anymore. I did that several times in the past. I can point you to older posts if you cannot find them. I do not want to discuss this anymore, because people always kind of respond "what you say cannot work". Which is an odd thing to say, because it is my setup since 2003. It does not work for everyone, in all situations. Heating systems are varied, complex and harder to understand and diagnose than electrical systems...

 

There are so many variables. For instance, your boiler might support a http interface... It might have 100 parameters (mine is old and it probably has about 20 *relevant* settings).

 

There are more than a few heating experts and motivated script writers on this forum, so you'll find an answer... But not a "thermostat" that gets its info from your TRVs, such a device does not exist.

 

EDIT:

I think this pretty much fits what you want:

 

 

Edited August 23, 2018 by petergebruers

[wienog 107]

Peter, 

 

You are not an unpleasant person.

And such a thermostat does exist, only...it's not z-wave: the Evohome system of Honeywell does exactly that.

A workaround is quite simple with a thermostat: you write a script that switches the living room to, say, 30 °, close the living room valves, and switch the room thermostat back to 15 or so when the bathroom is on the right temperature.

My question was just if there was a z-wave thermostat on the market that just does that automatically, just like the Evohome of Honeywell (and to some degree the Netatmo-thermostat and valves) 'listens' to each individual valve and switches the boiler on when one or more rooms are not at the right temperature.

If you don't want to discuss further, that's ok with me. It was just an open question. Maybe some one else has experience ?

[petergebruers 1,268]

5 minutes ago, wienog said:

And such a thermostat does exist, only...it's not z-wave: the Evohome system of Honeywell does exactly that.

Confirmed. You could switch to such a solution, but I think it is cloud based and does not do mesh.

 

5 minutes ago, wienog said:

If you don't want to discuss further, that's ok with me. It was just an open question. Maybe some one else has experience ?

While you were typing, I added a link to my previous post, to get you started. The forum sofware merges it, so you might have missed it.

 

I think this is a starting point to meet people who can help you:

 

 

 

 

And this:

 

 

Edited August 23, 2018 by petergebruers

[wienog 107]

Thanks Peter

 

You pointed me already earlier to Dave Harrison's work but now I took the time to rear it at last. It's just what I need, together with the other help you provide me already with.

 

Thanks again.