@ecobaker Thats correct, I made the mistake of getting the same pump, but then decided to to sell it on ebay and get the UPM3 FLEX AS 25-75 130 AZA also on ebay.
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
@heacol easily resolved with a jumper wire on the end of the flow sensor cable 🤣
When I was commissioning my Sprsun I could not get the air out, kept tripping on a flow sensor issue. Jumpered the flow sensor out and left it at that. Haven’t seen a flow error since then 🤣 Got the air out eventually.
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
@heacol 👍
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
If the HP can't modulate below flow temp of 45 degrees and I'm aiming for flow temps of 35, is there much point in swapping out for a different pump?
Samsung Gen6 8kw ASHP in a two bed victorian mid terrace.
@ecobaker Probably not if the unit cant modulate at 35C. Maybe @Iancalderbank can advise if it works as low as that as i havent run mine that low yet.
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
I managed to talk to Glyn Hudson who was having difficulties getting PWM to work with his Samsung. However he has managed to sort it with a firmware update of the indoor controller and now it works at low flow temperatures, so it seems Samsung have sorted it.
https://community.openenergymonitor.org/t/samsung-mim-c02n-s-net-pro-dongle/25418/5
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
@bontwoody it will run at 35, but only stably if you have enough emitters to balance the min output of the HP. Which in my case with a 16kw gen6 unit is 3.5kw. Below about 34-35C my emitter output drops too low , so it would short cycles , so I have tuned the WC so it doesn't go much below that.
lots of run data on my heatpumpmonitor.org data, as per my sig.
My octopus signup link https://share.octopus.energy/ebony-deer-230
210m2 house, Samsung 16kw Gen6 ASHP Self installed: Single circulation loop , PWM modulating pump.
My public ASHP stats: https://heatpumpmonitor.org/system/view?id=45
11.9kWp of PV
41kWh of Battery storage (3x Powerwall 2)
2x BEVs
@iancalderbank Thanks Ian.
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
@bontwoody @iancalderbank Thanks for the advice. Looks like Ill try and get a firmware update before removing the LLH, although that could be tricky.
Also I just swapped out a small radiator for a much bigger one in my kitchen which resulted in a jump of daily COP from 3.6 to 4.1, I have three other rads I want to swap as well when I can afford to do it. I think thats probably a first step before removing a LLH or changing pump.
Samsung Gen6 8kw ASHP in a two bed victorian mid terrace.
@ecobaker mine did not need a firmware change. the PWM worked first time. I am not even sure how you would go about getting a firmware change done.
radiator changes - yes - put your effort in there first. obvious gains as you have found.
My octopus signup link https://share.octopus.energy/ebony-deer-230
210m2 house, Samsung 16kw Gen6 ASHP Self installed: Single circulation loop , PWM modulating pump.
My public ASHP stats: https://heatpumpmonitor.org/system/view?id=45
11.9kWp of PV
41kWh of Battery storage (3x Powerwall 2)
2x BEVs
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
- 26 Forums
- 2,242 Topics
- 49.9 K Posts
- 325 Online
- 5,903 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
Precisely my view and why I use the term 'sense check'....
By JamesPa , 2 hours ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@judith This is very interesting. I've located and prin...
By Mike Patrick , 3 hours ago
-
RE: Daikin Octopus installation update - I saw my first defrost. 😍😂
@radwhisperer Thanks but that is definitely not a mixer...
By Jancold , 6 hours ago
-
-
RE: Octopus Cosy Heat Pump Owners & Discussion Thread
OK thats cheap, the commercial price seems to be £400 p...
By JamesPa , 11 hours ago
-
RE: Solar inverters - where does the energy go when clipping?
I think I must query the sources on which Greenmatch ha...
By Transparent , 14 hours ago
-
RE: Replacing knackered oil boiler with Samsung ASHP - Perthshire
This is how I run my Samsung 12kW ASHP with a 3rd party...
By Old_Scientist , 15 hours ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
@cathoderay thanks- yes will keep an eye out for the de...
By benson , 1 day ago
-
RE: Renewables & Heat Pumps in the News
Hoping so as well! I am no specialist. The language use...
By Batpred , 1 day ago
-
Do you need the DHW tank as high as 50°C @egp01 ? Ha...
By Transparent , 1 day ago
-
RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@old_scientist Just to say that during our retrofit, we...
By Toodles , 1 day ago
-
RE: Daikin Altherma 3M ASHP and British Gas Hive Home
We have a Daikin EDLA08 8kW monobloc (DHW is handled se...
By Toodles , 1 day ago
-
@old_scientist @jamespa So this was last nights DHW r...
By bontwoody , 1 day ago
-
-
@springswood we install these nationwide and I have the...
By dgclimatecontrol , 1 day ago
-
RE: DESNZ doing a survey which asks the right questions!
Fair comment. I have a feeling that ratings more gen...
By JamesPa , 2 days ago
-
Thanks! My consumer unit collection is ready with the W...
By Batpred , 2 days ago
-
RE: Designing my house system with a mix of air to air and air to water
@jamespa Cheers James, it's great reading. In quite a f...
By pipebaron , 2 days ago
-
RE: PV Panels on roof in Conservation Area
If there is any way you can determine daily oil consump...
By JamesPa , 2 days ago
-
RE: Grant 13kW Aerona3 - issues getting zones to temp
attached is prelagged in case indicates anything. &nb...
By Crimson , 2 days ago




