Last month an Vitocal200-S AWB-E 201 D08 was installed with a Vitotrol and external Temperature sensor. We only use it for floor heating (+/- 100m²) and we have no boiler (speicher). Slope= 0,2 and level=0 (see screenshot)
After the installation we noticed an annoying noise, caused by the Sekundaerpumpe, but this was quickly solved by changing speed from 100% to 70% in code 7343.
We noticed the first week that Kompressor Temperature was often going to 35°C and that the Sekundaerpumpe was running 24/24. Also when Tin and Tout was almost the same (see photo Tin=22,2° Tout=22,1°)
The technician did an intervention last week and changed these codes:
- Tmax changed from 35 to 30
- 7340 (codierniveau 2) from 2 to 3
- 200A from 40 to 10
- 200B from 3 to 1
The results are not good: Sekundaerpumpe keeps running 24/24 and average kompressor runtime is low (1,5 hour). Kompressor Temperature is mostly 30°C when active. With slope 0,2 it should be able to warm with 27-28° normally.
Can i please get some advice for optimising codes , because technician is out of ideas:
- Sekundaerpumpe > less running, for exmple only run when needed (Tin > Tout)
- Low temperature heating with less start/stop kompressor
Thank in advance, Kris
PS: "load-class 5" has 0 hours, is this the lowest or highest level? (see screenshot)
