Forums

Forums
Members
cathodeRay
Activity
 
Notifications
Clear all
cathodeRay
cathodeRay
@cathoderay
Moderator
Famed Member
Joined: Feb 28, 2022
Last seen: Aug 5, 2025
Profile Activity
Topics: 17 / Replies: 2072
AllTopicsReplies
Reply
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...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

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

Here's a better close up photo:

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

1 year 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. ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 ...

1 year 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)
Reply
RE: No-code, plug-and-play monitoring for your heat pump

Good thinking. I've also had a look at the connections in the photo, and it looks like a standard two wire modbus/RS485 hookup plus DC power supply:

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

Very interesting indeed. I think at a basic level it is identical to my system: modbus connection to the heat pump, then read and write data over that...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump efficiency v Outside Air Temperature

Are you able to describe how you do this, what kit you use, and how you get the data into a computer? At the moment I use the sensor in the heat pump ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 63 / 175
Share:

Join Us!

Podcast Picks

Latest Posts