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

Errors during defrosting usually occur due to insufficient flow; this currently has nothing directly to do with the UV system.

Is your UV completely closed, or what setting is it on?

As @tomtom79 writes, your heating curve is very high and also quite steep.

As long as he continues to provide only fragmented partial information, it’s just groping in the dark. The pressure to find a solution doesn’t seem very high.

I agree with Tom. Thermal insulation closed and high flow rate no matter what.

halmi schrieb:

Defrost issues usually occur due to insufficient flow and are not directly related to the circulation pump during defrosting.

Is your circulation pump completely closed, or what is its current setting?

As @tomtom79 mentioned, your heating curve is quite high and also quite steep.

The circulation pump is precisely set to the minimum flow of 1400 liters per hour (620 gallons per hour), which the system requires for defrosting. If the pump is closed, the system simply can’t maintain the flow. I’m fed up with constant error messages.

Is 28 really a lot? Initially, it was set to 35. I was also told multiple times that 28 is very low.

It’s quite possible that the hydraulics are not correct. I tried to adjust it today, but of course, it’s not that simple. The system is going to cost me a fortune for now, and the temperatures are rising everywhere. That wouldn’t be a bad sign, though.

But you don’t actually have the 1400 l/h (370 gallons per hour), as you mentioned.

1400 is the operating flow rate; defrosting should be sufficient around 1100. However, if the heating curve is lowered, a hydraulic issue emerges, so the key is to find a balanced approach.

Since January 31st, I have consumed 196 kWh of electricity, averaging about 19 kWh, which is excellent, especially considering last week temperatures were 10-12°C (50-54°F) above normal here.

How do you read your electricity meters? I would like daily accurate data with a log file. Ideally, the system would be autonomous or connected via Somfy or EnOcean.