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Derek M
@derek-m
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Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4403
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RE: Connecting Home Assistant to a Midea Heat Pump

You would need to use a mask to extract the required data. I'm not 100% certain about the Python syntax, but basically you need to & (AND) the dat...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS guidelines and complaints - Ground Source Heat Pump installation and servicing

So the brine is acidic.

3 years ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

@cathoderay Rather than looking at bits 1 and 2 in address register 0, to decide if you are heating DHW or CH, you could look at bit 4 in address re...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS guidelines and complaints - Ground Source Heat Pump installation and servicing

If you have not already done so, I would suggest that you get the water analysed to see what may be causing the corrosion.

3 years ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

Thanks for the clarification. I'm old, and easily confused. 🙄

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our 11kW Ecodan and its inconsistent data...

I think I have read in some manuals, that the installer (or you) need to confirm that an immersion heater is installed along with its rating. The cont...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

Thank you for your kind words, but it is all part of the service to reduce energy consumption. By the way, the bill is in the post. 😋

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

@newhouse87 It can take quite some time to get the WC curve correctly adjusted, and it is important to not go on just one day's measurements, since ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

Actually, paying more attention to the photo's, is this actually a buffer tank or thermal store? Can you provide a photo of any nameplate?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

Ian has already come to the same conclusion, that the flow through the buffer tank is incorrect. To prove that the problem is not within the heat pump...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our 11kW Ecodan and its inconsistent data...

The external electricity meter will no doubt be more accurate than the Ecodan produced data. To measure the true power level (kW) requires measuring t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

Now that you are getting a level of understanding about heat pumps and the whole heating system we can move on to the next stage. A heating system c...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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