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,...
Latest Posts
-
RE: Electricity price predictions
Do you have evidence that our level of bureaucracy/inco...
By JamesPa , 30 minutes ago
-
RE: Midea ASHP – how to set weather compensation
@pash44pump - oh dear, it looks like they've managed to...
By cathodeRay , 1 hour ago
-
RE: Homely asking about Solar Panels.
@majordennisbloodnok I will report back with any develo...
By Toodles , 2 hours ago
-
-
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?
Are you able to post a photo of that 180-litre cylinder...
By Transparent , 6 hours ago
-
Agreed. It doesn't take all that much maintenance to ke...
By Majordennisbloodnok , 7 hours ago
-
RE: Oil Boiler & Heat Pump Hybrid System
OK. Got it. As a fellow rural West Country resident, ...
By Transparent , 9 hours ago
-
RE: Grant 13kW Aerona3 - issues getting zones to temp
@crimson I asked Eskimo about their correction facto...
By JamesPa , 10 hours ago
-
RE: My DIY Heat Pump installation
@pollar-bear Top job, I installed my own too and even t...
By bontwoody , 10 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
There are two definitions of sufficient volume. The fi...
By JamesPa , 10 hours ago
-
RE: Who has a V2G EV installation
Not sure how you got that information, @batpred. As of ...
By Majordennisbloodnok , 10 hours ago
-
RE: UFH downstairs and radiators upstairs balancing question
@ashp-bobba Can I pick you brain about mine ...
By davidnolan22 , 12 hours ago
-
RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
Ok so that seems to be the key point namely only mcs ca...
By JamesPa , 1 day ago
-
RE: One flow valve appears to be duff
You might want to consider the following common faults:...
By IaAck , 1 day ago
-
RE: When to use Octopus Intelligent Go tariff with my heat pump and battery
We are on the Intelligent Octopus Go tariff. We instal...
By GrahamF , 1 day ago
-
RE: New build installation query
@paullacey While the others wait for more info do you m...
By ASHP-BOBBA , 2 days ago
-
RE: British Gas Heat Pump Installation Complaint
@bgno, the other consideration for legionella cycles ar...
By Mars , 2 days ago
-
@old_scientist I dont monitor the tank temperature but ...
By bontwoody , 2 days ago
