Heat controller doesn't open when temperature is below requested temperature

[Bob Romijn 0]

I have installed multiple Heat controllers (completely updated) on a HC3.

 

From the forum I understood so far already that you shouldn't thrust the demand for heat part to switch on the heating with a heat switch.

Hence I use the eventrunner to check whether the temperature is below the setpoint to switch on the heating.

 

What I see now sometimes happen is that the temperature (from the external temp sensor of the heat controller) is below the requested temp, e.g. setpoint is 21, actual temp is 20.7.

So heating is switched on, but the heat controller doesn't open at the heater to allow water to flow in.

How is that possible because I would expect the valve to open to heat the heater.

 

This way my heating (boiler) keeps on running.... which is not so nice.

 

Any ideas?

[Sjakie 156]

 

I don't have a heath controller.

How sure you are heating is on? Can you post rule?

If it sometimes happens it will be difficult to trace what cause it.

[petro_cz 31]

Does the valve have a hysteresis setting? like in 0.5 degree increments? or more?

[Bob Romijn 0]

5 hours ago, Sjakie said:

 

I don't have a heath controller.

How sure you are heating is on? Can you post rule?

If it sometimes happens it will be difficult to trace what cause it.

 

The rule in eventrunner:

rule("@@00:05:00 & (cv_schakelaar:isOff) & (woon_voor_thermo:heatingThermostatSetpoint-0.3 > (woon_voor_temp:value)) => cv_schakelaar:on; log('Ketel moet aan, Test:huidige temp voor=%s %s %s',woon_voor_temp:value,'Gevraagde temp=',woon_voor_thermo:heatingThermostatSetpoint)")

 

I also know that the boiler is on (as I checked at the boiler) and also the switch was on in HC3.

 

The temperature at the heat controller was also lower than the setpoint, like this (at that moment it stated 20.6 which is more than 0.3 as per the rule):

 

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Still the valve of the heat controller was not opening.

4 hours ago, petro_cz said:

Does the valve have a hysteresis setting? like in 0.5 degree increments? or more?

And how would you do that in the Fibaro heat controller? So far I couldn't find that... which doesn't say it is not there, only that I can't find it

[Sjakie 156]

 

First on with version fw?

Z-wave 2.0?

So heat controller is a Z-Wave device 

You can add to your rule:

log('heatcontroller is on  %s %s %s',heatcontroller:isOn')  >>>> change name in your device

log('cv_schakelaar is on  %s %s %s',cv_schakelaar:isOn')

So you can see in debug if it's on yes or no

[Bob Romijn 0]

Heat controller if from FIbaro FGT-001.

Zwave Plus

HC3 at 5.120.10

All latest firmwares and updated.

I have put a log line in place to register that it is on.

[Sjakie 156]

Z-wave 2.0 or 3.0?

[Bob Romijn 0]

1 hour ago, Sjakie said:

Z-wave 2.0 or 3.0?

Please login or register to see this image.

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I assume that is 3.

[Sjakie 156]

Zwave 3 is still experimental

Should use Zwave 2

[SmartHomeEddy 1,005]

Just to be sure about your z-wave version, check the settings -> zwave, if you see "Smart Start" it is the new beta version. If you don’t see “Smart Start”, you are lucky ?

[Bob Romijn 0]

34 minutes ago, SmartHomeEddy said:

Just to be sure about your z-wave version, check the settings -> zwave, if you see "Smart Start" it is the new beta version. If you don’t see “Smart Start”, you are lucky ?

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I don't see anything that is close to Smart Start.

54 minutes ago, Sjakie said:

Zwave 3 is still experimental

Should use Zwave 2

OK, but how can I go back then, because I didn't install any beta versions as far as I'm aware?

[Sjakie 156]

Looks like you have z-wave 2.0

 

[SmartHomeEddy 1,005]

57 minutes ago, Bob Romijn said:

I don't see anything that is close to Smart Start.

Then you aren’t on the beta version