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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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Degrees of Separation
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And we're back to @editor's point about supplier depend...
By Majordennisbloodnok , 29 minutes ago
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RE: Indevolt Batteries UK Support & Info Thread
I have absolutely no idea what the safety analysis (whe...
By JamesPa , 1 hour ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@baroquebank — some more comments on the latest version...
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RE: Cleaning solar panels with a hosepipe
This is one reason I'd never make a good solicitor. I'm...
By Majordennisbloodnok , 6 hours ago
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RE: Missing flow temperature in Heat Geek proposal
@sttpd1917 @l8again When we had it commissioned the ...
By Batpred , 7 hours ago
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RE: Microgeneration Certification Scheme (MCS)
I suspect this is why HG has massive ventilation losses...
By Batpred , 15 hours ago
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@trebor12345 If you select the Change Rate Plan button,...
By Toodles , 1 day ago
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RE: Jokes and fun posts about heat pumps and renewables
@majordennisbloodnok Well, I can use such terms as HMRC...
By Toodles , 2 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
I'd picked up that there was a leak coming from around ...
By Sheriff Fatman , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
Great info. Thank you. Regards Pete
By peterackstraw , 2 days ago
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RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 6 days ago
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RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 6 days ago
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