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redzer_irl
@redzer_irl
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Joined: Jan 6, 2023
Last seen: Dec 2, 2025
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Topics: 1 / Replies: 36
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RE: Samsung ASHP scheduling help

Unfortunately I don't really have any experience of trying to control the unit with minimal modbus. The only thing I used on Linux was mbpoll to initi...

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

Thanks very much Ian, I changed FSV 2091 to "Not Use" but it didn't have any effect. I then also changed FSV 2092 External Thermostat Application #2 (...

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

@iancalderbank I have come back to this a number of times but always thought I was doing something wrong. My system was initially set up to use Water ...

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

@kocta This is my configuration.yaml code which is very much based on the work of others here # Samsung Heat Pump Modbus Connection modbus: - name...

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

I came across this video which is an interesting example of heat pump control within Home Assistant

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

I have added the UI config and the YAML config of the script here. The main part is "modbus.write_register" and the payload associated with that. As...

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

@derek-m I only heat the water twice a day (at the moment it's to 50 degrees from 02-05:00 during the cheap night rate and to 42 degrees from 15:45-16...

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

@derek-m I am on a variable tariff so I'm turning heating and hot water off from 17-19:00 and upping the hot water set temperature from 2-5:00 I'm u...

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

I meant to credit Glyn Hudson for the hidden registers PDF which I found on his GitHub page

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

I had converted the Samsung Modbus MIM-B19N section on registers from PDF into Excel just to make it a bit easier to understand for myself. The sectio...

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

@iancalderbank I am doing the calculations after I upload the data inputs to Emoncms.org Input = Heat Pump Shelly EM CT clamp + Indoor Tank Shelly E...

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

@iancalderbank I had the same thoughts when wiring up my 8kw unit. I used a few cable ties also and tried to find somewhere that made sense.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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