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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Sep 15, 2025
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Topics: 17 / Replies: 2137
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RE: Connecting Home Assistant to a Midea Heat Pump

Yes, that all makes sense, it was how I had HA calculate kWh and COPs using statistics and templates. For example, to calculate the 24 hour trailing C...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

Thanks, but link goes to 404 - any possibility you could re-post a correct link? @cashback - this interestingly shows what I have suspected, longe...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

Perhaps try plotting the TF Module Temperature over time, and with other variables, to see if any pattern emerges? Also worth having a look at the man...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

@cashback - impressive work. Time will tell whether you end up with a warm feeling on the inside or a red face on the outside ;-). One thing I am p...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

I have been having another crack at my COP calcs, given that some of the trailing 60 minute values look suspiciously high at over 4 and sometimes even...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

Ah, that makes it all clear. Thanks very much. I thought you had to send a write request before each read request, which did seem odd, but a one time ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

But why not go for a generic approach, that can be adapted where necessary for manufacturer quirks and irritations? As long as you have a physical mod...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

@derek-m - thanks, brilliant clear explanation. Especially as I still have an analogue CRT TV! Looks right and works well in an old leaky listed build...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

Not so long ago a likened the hardware and RS-485 to the Morse keypads and telegraph wires in an old telegraph system and modbus to the Morse code sen...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

@transparent - it's probably just another case of bad manual language. I thought modbus 'functions' were used to tell it what to do eg 03 means 'read ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

This is why I am now trying to be as generic as possible in what I do, the idea is to have a generic approach that can be used either as it is or with...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

This is rather too cryptic for me, how, for example, would I 'solve the "sample and hold" behaviour of the heat pump interface'? I know you are replyi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 117 / 180
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