Circulatory pumps and weather compensation
So just checked the documents re added circulatory pumps and it seems these can be adjusted to accommodate flows etc.
Just wondering if anyone has experience of the settings with these and if any adjustments should be made in regard to weather compensation flow rates etc or does it adjust automatically?
2 10kw Grant Aerona3
Heat loss calc 16.5 kw @ -2.8 degrees
4.32 PV
I have this pump and it has 3 settings which approximate to 6, 7 or 8 metres of head assuming I have correctly understood the pump curves on the Grundfos website.
@bretiix Some heatpumps (eg Samsung) can control the pump speed automatically via something called pulse width modulation. Im not sure if any other makes have this capability.
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
Posted by: @bretixweather compensation flow rates etc or does it adjust automatically?
If the pump is PWM controlled, flow rates will be adjusted automatically by the heat pump, most pumps aren't though. So you need to set the flow rates manually. The flow setting should really change between a system bouncing of multiple thermostats and one on WC.
But on WC you will have a couple of pump operating strategies with the ASHP control. Continuous or sniffer mode, these come into play when the compressor is ideal, but the is a demand for heat. What you choose is variable dependant on heating system.
Thanks for answering I'm assuming the heat pump does it automatically although there is also a setting on the additional pump to adjust flows on demand - but as the HP is on all the time I'm assuming it falls in line with the flows on WC.
2 10kw Grant Aerona3
Heat loss calc 16.5 kw @ -2.8 degrees
4.32 PV
- 26 Forums
- 2,208 Topics
- 48.7 K Posts
- 111 Online
- 5,868 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Heat loss calculations and how they work in conjunction with heat pump sizing
Thanks and apologies if I was a bit lazy...I have not p...
By Batpred , 5 hours ago
-
RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
@plasfron Hi there! Yes your Mitsubishi heat pump needs...
By HCas , 8 hours ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
The recent ZeroDisrupt discussions reminded me to take ...
By Mars , 8 hours ago
-
RE: What is the Heat Geek Guarantee?
@colinc, that’s a very fair and well-balanced comment, ...
By Mars , 8 hours ago
-
@toodles Thanks. I will assume they have made som...
By Papahuhu , 9 hours ago
-
RE: Are We Sleepwalking Into Another Race to the Bottom?
Oh come on, that's a ridiculous argument by an installe...
By JamesPa , 9 hours ago
-
RE: Say hello and introduce yourself
I've seen photos of other people placing the tank in a ...
By Transparent , 10 hours ago
-
RE: PV Panels on roof in Conservation Area
@colinc Do your own due diligence re reviews etc but...
By Morgan , 11 hours ago
-
RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
So true, possibly with the exception of people you woul...
By JamesPa , 11 hours ago
-
RE: Isolating the system for a planned power cut
I hadn't realised your reason for a 100mA trip was due ...
By Transparent , 11 hours ago
-
RE: Midea ASHP – how to set weather compensation
Some things worth mentioning: (1) the Headroom Heat P...
By cathodeRay , 12 hours ago
-
RE: Heating Turned Off but Radiators Still Warm
@9jwr9 I didn't get an answer at the time and there has...
By Pipcart , 12 hours ago
-
RE: Battery storage to run Heat Pump.
@majordennisbloodnok I’m not sure you will be able to r...
By Toodles , 12 hours ago
-
RE: Renewables & Heat Pumps in the News
You've completely missed the point. Old, unpatched so...
By Majordennisbloodnok , 13 hours ago
-
RE: Ecodan Energy Monitoring Pack
@batpred that’s an idea yes. Will look into it
By Carpenterstation , 13 hours ago
-
-
PUHZ SW120Y & EHSC-VM2D - Buffer tank to Volumiser
Eventually I was able to find someone here in the Algar...
By DavidAlgarve , 14 hours ago
-
RE: Anyone still weathering it out with Agile?
We are still on agile and it works ok'ish to charge the...
By Batpred , 14 hours ago
-
RE: New Fogstar 15.5kWh upright solution
Ah... now I can see a photo,and that changes the advice...
By Transparent , 16 hours ago