Schlaumeier86
2025-10-19 22:43:20
- #1
Hello everyone,
I am working on optimizing my heat pump (new build KFW55, built in 2022, 118m2).
Lowering the heating curve, etc.
In the process, I notice that the ventilation system of the heat pump is a bit too loud for my taste. Especially now, as the heating season starts, with all the windows closed.
Settings:
Level 1
Supply air:
Target 80m3
Actual 28-31Hz
Extract air:
Target 80m3
Actual 24-27Hz (when the compressor is on, strangely it drops down to about 14Hz)
Level 2
Supply air:
Target 110m3
Actual 32-35Hz
Extract air:
Target 130m3
Actual 26-27Hz
Somehow the actual values for the supply air seem too high to me, could that be possible?
All filters are new. The only thing that could affect it: we have an extra filter box with a carbon filter installed in the supply air to combat odors. Obviously, this part increases the air resistance. If I take the filter cassette out, the actual value drops by maybe 2Hz, no more.
Does anyone have experience or reference values on how many Hz are normal and when?
I have no reference values from before; we bought this house this year and only briefly heated in March/April when I did not pay attention to all this.
In March, the heat pump was serviced and cleaned by a specialist company; in May, when the filter box was installed, the ventilation was also readjusted by the same company, so I do not assume dirt or anything similar as the cause.
Thank you
I am working on optimizing my heat pump (new build KFW55, built in 2022, 118m2).
Lowering the heating curve, etc.
In the process, I notice that the ventilation system of the heat pump is a bit too loud for my taste. Especially now, as the heating season starts, with all the windows closed.
Settings:
Level 1
Supply air:
Target 80m3
Actual 28-31Hz
Extract air:
Target 80m3
Actual 24-27Hz (when the compressor is on, strangely it drops down to about 14Hz)
Level 2
Supply air:
Target 110m3
Actual 32-35Hz
Extract air:
Target 130m3
Actual 26-27Hz
Somehow the actual values for the supply air seem too high to me, could that be possible?
All filters are new. The only thing that could affect it: we have an extra filter box with a carbon filter installed in the supply air to combat odors. Obviously, this part increases the air resistance. If I take the filter cassette out, the actual value drops by maybe 2Hz, no more.
Does anyone have experience or reference values on how many Hz are normal and when?
I have no reference values from before; we bought this house this year and only briefly heated in March/April when I did not pay attention to all this.
In March, the heat pump was serviced and cleaned by a specialist company; in May, when the filter box was installed, the ventilation was also readjusted by the same company, so I do not assume dirt or anything similar as the cause.
Thank you