Last seen: Sep 5, 2025
@jamespa Hi James, I missed one essential thing with all that, I should of added the way round this is to alway fit a sub board already stocked with a...
Very welcome 🙂
@adamk Hi Adam, Oh my, in defence of all good ASHP installers I wanted to just say there are some very good companies out there and it is sad to hea...
So the manual is correct and looks fine to me, to abbreviate the sequence and take out the things you don't need, you should do the following: Attac...
So this is essentially an AC split with a hydro box which then converts the refrigerant energy to a plate-heat exchanger but in the hydro box end (so ...
@davidalgarve Hi, I understood all of that, so these systems have a pump down (forced cooling mode) setting which allows for all of the LEV's to be in...
@trebor12345 So I think the 1st zigzag section shows some through coil sub-cooling before expansion and then the next section show the 1st stage distr...
@davidalgarve Hi David, anyone - refrigeration or AC holding an F-gas licence can pump down, rework your pipework, pressure test, evacuate and release...
@trebor12345 I must admit I noticed that about Hitachi more than any other brand, don't think of an evaporator as one pipe in and one pipe out, they w...
I wonder if it has some kind of pressure transducer to control the refrigerant pressures or is cooling the electronic components, it has been know som...
Latest Posts
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RE: COP is not the only measure of efficiency
@toodles Your use case is indeed very different to mine...
By jamespetts , 2 hours ago
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 2 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
Hell no, October as a matter of principle. If I had my ...
By Old_Scientist , 2 hours ago
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RE: Renewables & Heat Pumps in the News
@mike-patrick Well, if Europe is stalling partly due to...
By Toodles , 2 hours ago
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RE: Buffers, hot water and cooling
Seems a lot of work with hit or miss results and potent...
By dgclimatecontrol , 3 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@dgclimatecontrol I have no intention of removing the...
By Morgan , 3 hours ago
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 3 hours ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 6 hours ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 7 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
My system installed in July 2024 has produced 6.4mWh in...
By jamespetts , 7 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
Good unit. And the 10 kW is the same as the 12 kW I ...
By HCas , 1 day ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@judith thanks for your suggestions. Starting from col...
By GrahamF , 1 day ago
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RE: Inventor (Midea) Heat Pump short cycling advice
I switched to "fan coil mode" to be able to set water t...
By immunity , 1 day ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 2 days ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 2 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 2 days ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay OK let's wait and see, it sounds an interes...
By Tasos , 2 days ago
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RE: What is the Heat Geek Guarantee?
@judith, I’m with you on Heat Geek, but there really do...
By Mars , 2 days ago
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
By Scalextrix , 3 days ago
