Last seen: Oct 14, 2025
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: Aira Heat Pump: Stylish Scandinavian Heating
Having joined the Aira owners group on Facebook (for so...
By Pirate Rich , 5 hours ago
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
Interesting. So if you set blocade it can't know the c...
By JamesPa , 7 hours ago
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RE: Widespread failure of insulation installation
@jeff Along with a phone-in on BBC Radio Four today, mu...
By Toodles , 7 hours ago
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RE: What is the Heat Geek Guarantee?
@editor Thanks Mars, it is encouraging that Heat Geek a...
By colinc , 7 hours ago
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RE: 5 Star Service from Havenwise
Ok…a bit tumbleweed. From our own experience we were ...
By benson , 8 hours ago
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RE: Renewables & Heat Pumps in the News
Love the thought of it! simplification and sometimes me...
By Batpred , 8 hours ago
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RE: New Fogstar 15.5kWh upright solution
That's good news for the moment anyway. Can we try to...
By Transparent , 8 hours ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
Hi, I've always found Henri to be super helpful. From ...
By davidnolan22 , 8 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk Will not even get started... The power of the ...
By Batpred , 9 hours ago
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Sounds like you got it working for monitoring! With wel...
By Batpred , 10 hours ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
Thank you Aadil. We appreciate you taking the time to r...
By Mars , 10 hours ago
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RE: Say hello and introduce yourself
@chris12 Let us hope that next year will be a bumper so...
By Toodles , 13 hours ago
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RE: Isolating the system for a planned power cut
@batpred - that Solis installation page is too vague. ...
By Transparent , 13 hours ago
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RE: Heating Turned Off but Radiators Still Warm
I love Necromancy... but to follow James, heat pumps WI...
By DREI , 13 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
12kW Gen 6 AE120BXYDEG (currently NOT performing well a...
By DREI , 13 hours ago
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RE: Heat loss calculations and how they work in conjunction with heat pump sizing
Buffer tanks can best be thought of as part of a 'produ...
By JamesPa , 15 hours ago
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Very Much Awake – Renewing the Heating Industry One Step at a Time
Like any industry that touches so many lives, and is so...
By Aadil Qureshi , 17 hours ago
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Ah.... I'd like to make a couple of observations: &nb...
By Transparent , 17 hours ago
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RE: Battery storage to run Heat Pump.
Hats off to the ones that persist, @Transparent ! ...
By Batpred , 17 hours ago
