ᐅ Setting the Heating System Correctly

Created on: 29 Nov 2016 20:57
O
oggear51
Hello,

this is the first winter in my newly built house,
so I am starting to optimize the heating system.

I have installed the Buderus Logaplus package W22
GB172-14, G20, WU160W, RC300 package with an outdoor temperature sensor.
The house is completely equipped with underfloor heating with 10cm (4 inches) pipe spacing, triple-glazed windows, exterior walls consisting of 24cm (9.5 inches) Poroton bricks plus 16cm (6 inches) external thermal insulation composite system (ETICS).

Now my question is how to best set up the heating system, unfortunately I did not receive any instruction from my heating engineer.

Let me first give you some data.

Maximum flow temperature: 50°C (122°F)
Heating setpoint: 22°C (72°F)
Lowering temperature: heating off
Summer mode from 13°C (55°F)
Domestic hot water: 55°C (131°F)
Circulation pump switching frequency: 3/hour
Burner starts: 5247 (since mid-February)
Burner runtime: 2387 hours (since mid-February)

Service menu:

Menu 1:
1.7d. 0: no external flow temperature sensor connected

Menu 2:
2.1A: 14 kW
2.1B: 15 kW
2.1C: 2: Constant pressure 200 mbar
2.1E: 4: Intelligent heating pump shutdown...
2.1F: 0: Heating pump and 3-way valve (internal)
2.3b: Time interval between burner switch-off and switch-on 10 minutes
2.3C: Temperature interval for burner switch-off and switch-on 6 K
2.3F: Hot water keep-warm duration 1 minute
2.9F: Heating pump post-run time 3 minutes
2.CE: Number of starts of circulation pump 3 min on, 17 min off

Menu 3:
3.1A: 14 kW maximum heating output
3.1B: 15 kW maximum domestic hot water output
3.2b: 50°C (122°F) maximum flow temperature
3.3d: 3.2 kW minimum nominal heat output

These are the details I know, I hope I didn’t overwhelm you too much.

I would appreciate any advice.

Thank you very much
O
oggear51
1 Dec 2016 18:16
The only thing that seems similar is the sensor adjustment for room temperature, which is set to 0.0 K. I think that is the heating curve, right?

The screed program is turned off.
Mycraft1 Dec 2016 18:29
No, the sensor calibration is the sensor calibration, meaning you can use it to "tell" the heating system whether the installed sensor is measuring correctly or if the value needs to be adjusted.
O
oggear51
1 Dec 2016 18:35
I did it, but the outside temperature shown on the display still does not change.
Mycraft1 Dec 2016 20:09
It does not go into the external sensor but into the internal one.
Mycraft13 Dec 2016 21:06
The outdoor sensor allows your boiler to calculate how much heating is needed to compensate for transmission losses.
O
oggear51
13 Dec 2016 21:12
I will probably never understand the heating system. What is the setpoint temperature used for, and what exactly does it control?