@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
Director at Heacol | Expert Heat Pump Consultant | Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
@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
definitely. Bigger rads and lower flow temperature is your low hanging fruit.
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
- 22 Forums
- 2,073 Topics
- 45.5 K Posts
- 68 Online
- 3,353 Members
Join Us!
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
RE: Solar Power Output – Let’s Compare Generation Figures
Well we finished this month with an all time record! Ev...
By Andris , 10 hours ago
-
RE: 5 Star Service from Havenwise
Oh good! I was wondering when/if you might pick them ...
By Transparent , 12 hours ago
-
RE: Air Changes per Hour - ACH and the MCS requirement
update - my old installer insisted on a heat loss of 11...
By MatWin , 14 hours ago
-
I agree it's not very helpful. Generally, the max heat ...
By Old_Scientist , 16 hours ago
-
RE: Commencing on an ASHP Installation Process
I think therein lies the problem. Ratio of quotes to i...
By JamesPa , 2 days ago
-
RE: Why Your MCS-Certified Installer Might Not Be As Competent As You Think
Hive and most other smart thermostats don't play well w...
By JamesPa , 2 days ago
-
RE: Enabling WiFi: Samsung ASHP on Smart Things App
Thanks for the input. I've been running various experim...
By Grahamh-uk , 2 days ago
-
RE: Radiators downstairs are cooler at the bottom after ASHP install
@melonbuffet Hi, this sounds great is you are getting 5...
By ASHP-BOBBA , 2 days ago
-
RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy
I believe there's another reason that network upgrades ...
By Transparent , 2 days ago
-
RE: What’s the modern take on advised types of insulation?
@jeff I am sorry @jeff if I have misunderstood what you...
By Toodles , 3 days ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@editor Cobbler’s Mantra that!
By Toodles , 3 days ago
-
RE: Renewables & Heat Pumps in the News
Australia Blue, the first wind farm in Western Victoria...
By Morgan , 4 days ago
-
RE: Flow rate discrepancy between ASHP and manifold
That's useful thanks, I hadn't seen that table before. ...
By AshRolls , 4 days ago
-
In principle I agree, @johnmo, but with provisos. The...
By Majordennisbloodnok , 5 days ago
-
RE: Heat pump installation and BUS Grant timings
@jamespa Thats how I understood it too. 🙂
By ASHP-BOBBA , 5 days ago
-
RE: Antifreeze top up for my heat pump - is this a rip off?
@sallyl That sounds about right if they are re-filling ...
By Brendon Uys , 5 days ago
-
I wouldn't be so sure about that. Heat pump designers ...
By JamesPa , 5 days ago
-
RE: Jokes and fun posts about heat pumps and renewables
@toodles they're a rowdy bunch!
By Mars , 6 days ago
-
RE: Home energy storage & battery register
@jamespa To a certain extent, by exporting to the grid ...
By Toodles , 6 days ago