ᐅ Air-to-Water Heat Pump: Current Consumption and Data

Create a new branch using data from the house, underfloor heating, and temperatures. Then you can proceed.

@Zaba12
What do you mean by high temperature differential, specifically before the incident?

@lin0r87
Take a look at this thread:
Underfloor heating air-to-water heat pump. House too warm when the sun shines
By @chewbacca123
It also discusses an LAD 9. You’ll probably find some useful tips there. Then you can start your own thread.

T_im_Norden schrieb:

@Zaba12
What do you mean by a large temperature difference, like before the incident?

- 5-8°C (9-14°F) during heating operation
- 0.2 - 2°C (0.4-3.6°F) in standby

Still 4 degrees (7°F) until the hysteresis of 2°C (4°F) is undershot. I think it will only switch on again shortly before midnight. Current temperature difference is 0.1°C (0.2°F).

lin0r87 schrieb:

Hello everyone,
I’ve read through everything and I’m a bit confused...
We have a Novelan LAD9 system with a photovoltaic setup and only one meter.

There aren’t many devices running.
- Controlled mechanical ventilation
- Bus system
- Common appliances like a refrigerator, etc.

I noted the reading from yesterday and looked at the meter today.
I came up with a total electricity consumption of about 30 kWh per day.
I wonder if our device might be set up incorrectly...?

We have the same menu on the device as @Zaba12

We basically have a similar model. I just reviewed the data from mid-December until now. We also used around 28 kWh per day for heating electricity. Based on the heat pump meter, this actually calculates a COP of 3.3. That’s not really satisfactory yet, especially since recently the bathroom temperature only reaches 21.5°C (70.7°F) no matter what I set it to. I feel like the system is still not running properly 🙁

I don’t remember exactly, but how large was your house and which KfW type was it?
28 kW is over 80 kWh of heat, which I find quite high.