Heating parameters?

[denver]

Yes its that time of year again and Im still confused how the heating modules IRC & ITC work.

I have panel radiators throughout, the bedroom rads all have standard manual TRV's and all rads in the house are on 1 zone heated from a combination boiler. I have the IRC set to manual and use a Up/Down switch to increase/decrease the temperature by +/- .2deg at 'Tm', I have 3 temperature sensors downstairs connected through a 'average' module on to 'Ti' of the IRC.

I can't get my head around the different parameter settings and how they effect the control of the heating, the heating will come on but will over shot the target temperature by around .4deg before the boiler turns off the temperature then continues to rise a further degree.

I would prefer the boiler to turn off before the target temperature.

Any help with these setting would be appreciated.

[Kevp]

I think I would start with replacing the IRC with a new one so it has to re learn the house.

I would also get out the habit of using "manual" mode and instead use the automatic functions of the IRC. program a schedule with temperatures at what time etc and leave it ALONE for a week so it can learn.

You can set up a graph of the average temperature and measure every 20 min or so and you should see each day that the heating comes on earlier or later to hit the correct temperature at the correct time.

Best regards

[denver]

The problem I have with auto mode is my wife and I don't have a set time every day that we are in or out.

[Arnaud]

Hi,

I've been working a lot on heating issues with Loxone.

there are 2 modes of operation that are satisfactory from my point of view: 

1/ The automatic mode as Loxone understands it; you use the IRC to regulate the temperature of your room, but in this case you must let it happen, you only indicate your instructions and your presence. The result is very satisfying, especially if your boiler accepts the instructions concerning the water temperature, with an external sensor the trick is done.

2/ If you want to keep your hand, then you have to forget the IRC and use the PID controller, which is more tedious to implement, and also to integrate properly into the visualization, on the other hand you will be able to influence the tolerance, the heating speed, etc.

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[Arnaud]

I think many of us also have a wife at home... as well as children ;-).

The only thing that interests mine is not to be cold!

so I use the IRC with an old gas boiler, one of the 230V relays of the miniser is connected instead of the room thermostat. Each radiator is equipped with an AIR or EnOcean valve.

Each zone has its own temperature probe and its own CRI of course. 

I have programmed the set temperatures for each zone, for each'normal' day, i.e. the days of the week when we are present / absent.

Finally I added exceptional absence / presence modes that can be activated by virtual inputs that I have bookmarked. 

It took me 15 minutes of explanation for my wife to be autonomous... and 5 minutes for my children.