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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Oct 21, 2026
Profile Activity
Topics: 18 / Replies: 3075
AllTopicsReplies
Reply
RE: Heat pumps and on/off working - starting to quantify it

Hopefully Derek will survive, and be able to tell us what the experience felt like.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Real world connection to a heat pump over modbus
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 58
Views: 30717
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

Just for the record, here is a comparison of the two ways I have tried to connect to a Midea heat pump, firstly all in Home Assistant using the midea_...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Local monitoring and control of inverter - gaps in understanding

@majordennisbloodnok - I think your problem is generically the same problem that I had, how to make a working physical connection to a modbus device, ...

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Samsung ASHP scheduling help

That makes sense, and then you set up your own adaptive WCC. It will be very interesting to have feedback on how you get on.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung ASHP scheduling help

I think that is going to be the problem - won't the internal Samsung control circuits constantly set the LWT to what it thinks it should be, and so ov...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung ASHP scheduling help

That's a pity. Luckily the Midea manual does document the registers to set (and get) the weather comp curve endpoints (complete with typos), and a qui...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung ASHP scheduling help

As I think you know, I am planning to do something similar (control via modbus, using python plus minimalmodbus) with my Midea heat pump. Just a thoug...

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

@leichat - very useful. It looks like it has a direct modbus connection. From 3:17 in the video: Modbus RTU / RS485 connections are two wire (and ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to Heat Pump Monitoring Reloaded (v2)

I've been waiting for the heating season to start, once the heating is on I want to check and double check my monitoring system works as it should do,...

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

Excellent idea.

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

I agree on all points. I have already done (2), adding a room temp (IAT) sensor, as the Midea one is in the wired controller, which in my case is in t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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