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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 9, 2025
Profile Activity
Topics: 17 / Replies: 2123
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Yes, as has been all my OAT data to date, meaning charts are comparable, as in showing the same data from the same sensor. I do now have an outdoor ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Continuous running: weather compensation (room stat at 26 ie 'always on'); setbacks timed by turning the room stat down to 12 degrees between 2100 and...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

I've been running with 6 hour overnight setbacks for the last week. Here is the last two weeks noon to noon mean OAT and energy use, left hand side no...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

@sunandair - interesting. I have added an eyeballed trend line, ignoring the outlier, and the general shape of the curve is very similar to the curves...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Real world connection to a heat pump over modbus

@ctw - Freedom can be very awkward, they have a B2B business model that means that as a rule (but not always) they ignore us mere end users. If you ca...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Real world connection to a heat pump over modbus

Here's a better close up photo:

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Real world connection to a heat pump over modbus

@toodles - thanks, in a Midea controller they are labelled H1 and H2. You can just make out H2 (bottom right) in this image of my wired controller wit...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Real world connection to a heat pump over modbus

Basically, yes. It is a two wire connection to those terminals in the wired controller. I also added a simple 120 ohm resistor across the terminals. ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Slash Your Heat Pump Bills Overnight

You weren't the only one. There is another recent truly bizarre post here, to which I nearly replied '"The broader challenge calls for a collective in...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Slash Your Heat Pump Bills Overnight

But that is pretty much what has been proposed in this thread... The point I am making is that if this happens widely, it may mean the tariffs end up ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Slash Your Heat Pump Bills Overnight

Another point to consider: what happens if time of use tariffs become commonplace, and many more people time their electricity use according to their ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: No-code, plug-and-play monitoring for your heat pump

Apparently so, according to their website. Samsung units have a modbus connection via an add-on board.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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