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07/10/2021 9:18 am
@morgan It is easy to install, you just plug it in and change 1 dips switch, alter the controller setting, and it works, the instructions are quite good. If you want it to work you can do it later, but tell the installer to run the system on whether compensation, not a thermostat.
Director at Heacol | Expert Heat Pump Consultant | Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
2
07/10/2021 9:19 am
If you can get the controller to a central point, it has a sensor in it and will work as the internal thermostat.
Director at Heacol | Expert Heat Pump Consultant | Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
2
07/10/2021 9:24 am
@heacol if it requires an electrical connection, trust me, it’s beyond my capability.
Controller to a ‘central point’?
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
07/10/2021 10:10 am
@morgan Just 2 wires, and it is only 5 volts, so it will not give you a shock!!!
Director at Heacol | Expert Heat Pump Consultant | Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
2
07/10/2021 10:12 am
@heacol I’ve destroyed the functionality of electric products before now. Myself and lectrickery are not allies.
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
07/10/2021 10:15 am
@morgan 🤣 🤣 🤣
Director at Heacol | Expert Heat Pump Consultant | Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
2
08/10/2021 8:54 am
@morgan Lots of them on Ebay
https://www.ebay.co.uk/itm/143935621934?hash=item21833b4b2e:g:Ir0AAOSwxPRgGDal
@heacol. Just delivered in plenty of time for install starting on Monday. 🤞
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
Topic starter
13/10/2021 3:01 pm
I am now looking at this Pi based system - https://guide.openenergymonitor.org/applications/heatpump/
I will probably use the emonPI system and I can also use the same Pi system to control my battery charging too. Anyone had any experience with these systems?
03/03/2022 1:54 pm
My Grant heat pump has a COP rating printed on it (for specific air and water temperatures) but I want to know what COP I'm actually achieving. (say a daily figure)
I know from the electricity meter how much energy it is using but have no idea how much heat it it producing. I asked Grant if there was a value I can read off the control panel - but they said not (why not?)
Many on this site quote their achieved COP ratings and I wonder how. Do some makes provide the heat output figure or is it more complicated than that?
Mike
Grant Aerona HPID10 10kWh ASHP
03/03/2022 2:28 pm
@mike-patrick, that is very strange that your control panel doesn't have that kind of information. Most ASHPs now give you data on how much heat you've generated and how electricity you've consumed. Which Grant model do you have?
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03/03/2022 5:45 pm
tbh all the readings you get from the units themselves are soewhat dubious, they do things like forget to measure the fan and pcb power etc
if you want to measure the cop properly get a sontek heat meter DMS sell them, put in the water to measure real flow rate and delta t and an electri meter to measure the power in. it works perfectley and is 100% accurate.
ive run one like this for a few years at home.
Heat pump expert
2
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