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Last seen: Jan 14, 2025
@davesoa all of those are good things to get done prior to changing the source to a heat pump, and I did a number of those things myself prior to doin...
what I am saying to you is that you appear to have clear logically provable evidence that your particular samsung controller board is faulty on its PW...
@iantelescope so by that logic, the pumps are fine but the PWM source (samsung control board) isn't. I have a PWM source that in theory is the same as...
@iantelescope so according to the logic of this (Correct me if I'm wrong) you've proven that the radiator-side pump modulates as expected with a PWM...
@bontwoody pump definitely runs at lower power when PWM'd down. what the effect on COP is I am not personally qualified to comment but there is plenty...
I've seen that commentary from graham before that the Samsung G6 PWM doesn't work. it 100% does , I guarantee it , at least on my G6 system, with a UP...
cylinder goes on the shelf and you crawl under to get at the plumbing? nice! 😀
so, found time to get back to this now. my house is fully on the ASHP including DHW, and I've installed an ESP32 board to talk to the modbus controlle...
@derek-m its all in the grundfos documentation and there's a standard for it as well VDMA Einheitsblatt 24244. page 17 of the relevant grundfos pump m...
@bontwoody @jamespa I also have the same background and interests. I guess it's not a coincidence that we all ended up in exactly the same place in te...
@iantelescope ok, I think I follow, but I'm not sure of the accuracy of a simple voltmeter in tracing the detailed behaviour. as it is a pulsed signal...
@iantelescope as per previous, my pump , UPMM type, has no LED's. the obvious indicator of "is PWM working or not" is that with PWM heating profile,...
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Latest Posts
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@lizzie that is useful info, thanks. I’m currently con...
By AndrewJ , 2 hours ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 13 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 19 hours ago
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At the risk of going on: A slight side issue for a foru...
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
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RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
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RE: PV and battery long payback - sense check query
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By Batpred , 2 days ago
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Readers here please note that Derril Water and many oth...
By Transparent , 2 days ago
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RE: Advice on Vaillant Sensocomfort
Oops, I meant Sensocomfort (the UI to the controls)
By Batpred , 2 days ago
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RE: Heat Pump Training vs. Real-World Installation
Our instal was very much the opposite. White haired blo...
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RE: Flushing system, cleaning and inhibitor
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RE: 'Chinese Diesel Heater' to heat the home .....
Old thread but I'm new to the forum so new to me. How...
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I'm not sure why you would want to make it more difficu...
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