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Great video. Thanks for the instructions!

Hi had a lightning storm lastnight, this morning have no power to Mitsubishi control panel everything else has power any help b much appreciated thanks les

I've watched many videos on TH-cam showing solar system installs using Enphase equipment and NOBODY shows the commissioning/startup process. There must be some reason, either the process is restricted by Enphase or the installers are protecting their market in some way. Of course, this means that all maintenance going forward will be closed to any but those installers. If that business fails, so does your system. Not acceptable.

Beautiful install mate and the video is very informative. Just done my first electrical install of one of these and while it’s more unnecessarily complicated than it needs to be with the volt free inputs into the wiring centre it’s a great bit of kit when it gets up and running. I know you were using the Vaillant controllers there for the radiator zone but if you had to use a third party controller how do you get around the need to have a volt free signal coming from the room stat?

how do you turn on the radiators to heat the house

I think that the grid is a cashflow investment and lost grid customer demand will make higher $kWh for all remaining grid electricity users. Cashflow on the grid investment value is important to the grid owners. This is a massive problem for the grid when the SUN SHINES. No grid electricity is needed. CASHFLOW DEATH. 😮😮 When the home battery is full and feeding home demand, grid CASHFLOW DEATH.😮😮 When the wind blows grid owners get electricity to sell to customers. Grid Electricity will be an imploding business and nuclear electricity makes it even worse.😮😮 In Australia fossil fueled generators are sucking in governments tax payers money. Nuclear promoters want government money to build nuclear electricity generators. Nuclear promoters want government disaster insurance. Nuclear promoters will then want private investors but government guaranteed CASH FLOWS. WTF. The distant wind turbines will need the grid to supply the millions of customers still demandng supply. I bet the fossil fueled generators are even running at a loss for tax purposes 🙄 😮😮 So PV rooftop return on investment is not taxed and will increase in value as grid electricity supply $kWh prices must increase. Remember in a warming latitudes heating costs will crash. Petroleum for emergency winter weeks heating will be nothing. Petroleum for petrochemical industry and road building and maintenance will remain as usual. 20years to replace all ICE vehicles. (Internal combustion engines)

I'm wondering what would happen if a gas meter located near breakers had some gas leakage and the breakers were switched on at the same time.

Is there any chance you could tell me what size supply cable was needed for the unit please?

Does a smart meter have to be installed for these?

Horrendous. Imagine a whole estate full of these things. As if modern traffic noise wasn't enough. This ruins people's health.

At night is to disturbing

Hi bill do you leave your emersion on all the time because so far I'm not thrilled with it as radiators coming on when it feels like it.

Does anyone know its the GSI system or something similar is available in the states?

Would you choose Vaillant or Mitsubishi ?

As you probably know melcloud has been down there for about a week. Ive tried numerous times to reconnect using the WPS way and also using the SDDI & KEY method to no avail. Only think i can see different is at the start my unit light is on constantly and not flashing. Cant see any other reason why its not connecting. Ive followed both ways and nothing. Any help or tips please ? Many thanks

To me it is not noisy at all. What model is that and what is the published sound level in dBA?

Very helpful - we have 4 panels with IQ7As at the moment with the Tesla 2 battery and gateway. We’re thinking of adding more panels but on an outbuilding. Is it as simple as wiring these into a circuit and the system will pick them up? Or do they need to be programmed to the gateway to make them work?

Just for my own curiosity, why the mid clamp are not on the longside (15-20% from edges) and are mounted on the short side. I have yet to see a panel manufacturer to indicate this time of mounting. It can be done but with a pannel with no more than 1.8m lenght.

That consistent “hum” I could hear when you were talking would drive me nuts - my neighbour is having one fitted this week - and honestly I’m dreading it - it will be like someone running a bloody lawn mower 24/7 and if at night if I want our bedroom window open it’s going to be awful - they should be bloody banned - horrible bloody things - and it’s within a metre of our border with him - he didn’t even tell us he was having one fitted - bloody awful - going to ruin the peace in our garden

We moved in to our converted barn 9 years ago (bought from a previous owner who didn't really live in it). It has an ECODAN ASHP for underfloor heating and hot water. It is expensive to run and gives nothing back. I have turned off the heating and replaced it with 3 Everett stoves, which are really good. Although the hot water is set to 24hrs it is always cold, so we have to repeatedly use the boost button (up to 3 times) to heat water for washing up etc. I have really struggled to find anyone to offer a service, the original installers have gone. I have recently contacted a company I saw on a recommendation of our local face book page who wants £400 plus vat and extra if the glycol needs topping up. Luckily I have a gas Aga (aims programmable) which help to heat the property; gas central heating would be preferable but with the cost to convert and net zero agenda this is not a possibility. I am so frustrated!!

What the hell use is a solar system to the customer if it shuts down for SAFETY when the mains is lost???? How do you tell him is completely devoid of electricity and his freezer thaw out the fridge dies and they will be sitting in the dark without anything to do. Why can the solar system and any battery not keep the house live because of the god safety? Is it because the feedback to the mains in not possible because a switch over device cannot know when the mains goes off as there is still 230 volts available to it. The policy of solar appears to be the advantage of the power companies financial position. Surely there has to be some sort of standby power available to keep it all going , I had a power down for a week because of a u found wet fault in the mains several times in the passed year until they replaced the whole cable system along the road.

No smoke alarm was fitted in my Attic I fitted one myself and linked it to others in the bungalow. The so-called electrician had very little knowledge of how to wire the system up. The installers were called back several times because the inverter and battery system were installed incorrectly and only half the battery storage was fitted or delivered. The MCS certificate was issued but I complained to the two associations about the workmanship, both did not help because the company although using the logos on the website and correspondence had failed to pay the membership fee for the year. The Ikano Bank was of little use when I informed them not to pay the company until the work was sorted they paid them despite being told all the system had not been delivered ie breach of contract. Saint Solar I believe is now out of Business. I have nearly paid the loan back to the Ikano Bank. So despite looking for a recognised company belonging to the correct associations and MCS-trained you still can only believe word of mouth from satisfied genuine customers.

For the flat roof does there have to be ply immediately under the surface or can the racking system sit on felt thats layed ontop of rigid insulation?

I have an installer looking to specify Mitsubishi , he notes Vaillant customer support is poor and that he says their controls were variations off their gas boilers . The Mitsubishi though were the result of their experiences in the air to air market . I still can not decide which manufacturer to go with .

Why do you need two? Do you need one for hot and cold? Or just purely just to manaage expectations for taps and bathrooms

Are these racks much more costly than renusol tubs?

Do enphase microinverters hum underneath panel like a string inverter would?

With the multiple zones, multiple underfloor zones, buffer and secondary pumps I would think 3.65 as a SCOP is high. Ideally remove the buffer, remove the two secondary pumps remove the actuators on the underfloor heating as well as the mixer valve on the underfloor manifold. install flow gauges next to the zone valves and do the calcs depending on the max flow rate requirement of each zone. the system needs minimum 55l of water so you could use the buffer as a accumulator on the return if the underfloor is too small as a single zone. Its a great install nut I do think the Valliant design assumes the installer doesn't understand hydronics.

Excellent

I have 62 homes being built next to me, all 60 will have heat pumps, will I likely notice them ? I am 30 metres away from the nearest new home being built. I am concerned as I live in a quiet village and this is 60+ homes who will have them. I think the builders were forced to install them due to the government.

I do not understand why one would do this? Have you guys ever installed solar before?

Clear as mud. The instructions do not show much on this video. Far better to write a,set of clear instructions. This does not work on my system

I would have been tempted to install it as east west facing aray any and get a longer generation period with less of a mid day peak. Was this an option?

I had discounted the Mixergy as I had been told that when connected to an ASHP it reverted to being a standard emersion heater and you didn't get the benefit of choosing how much water you needed. For the most part I will be a single person living in a 4 bed 2 bath house so would want the capacity when people came to stay but on a day to day basis would probably only need 50% of the tank if not less. I will also have Solar PV, Harvi and eddie and a Give Energy all in one battery. Can you confirm the Mixergy tank would still work as required with my setup?

This was an extremely informative video as I have been offered a Mitsubishi by an MSC recommended fitter but my local authority had used a Vaillant for a retrofit they had just done and I wasn't sure which would be better. The fitter has promised to do a full evaluations when he comes to see me so we will know what size I need but I do like the idea of the R290 refrigerant that the Vaillant uses so I might be able to pursued him to try a different manufacturer. I have just started on a renovation of a 1950's semidetached single brick bungalow - It will have a wrap around extension to two sides and external insulation on the front, roof has been removed and will have a 2 bedroom one bathroom dormer. The builder knows I want extra insulation on the party wall and as I am having under floor heating throughout. This should suit an ASHP perfectly.

if that is the humming I can hear in the back ground that is noisy and annoying, that is noise pollution.

Nice run through , accuracy of layout and detail emphasised 👍

I have an 11.2kW Ecodan which was running for two years in Weather Compensation mode till Oct'23. Because it is a linear curve it never worked well because I always had to intervene once room temperature was reached by dialling down the curve by a few degrees to enable longer runs. Since the beginning of Oct'23 I switched to fully automatic (target room temp/auto adaptive) mode. After 3 months I'm amazed how much difference it has made - at least 15% better COP with like for like room/outside temps, and I have checked and double checked these results so many times now. The operation of the heat pump is so much better "managed", with more gentle startups (not so much initial power spiking), lower flow temps, longer run times, and better management of the effect of defrosting in really cold temps. You can clearly see in MelCloud how flow temps are modulated automatically as target room temp is achieved and then maintained for the longest possible runs at the lowest flow temps. Best news is that I don't have to intervene at all now - I can just leave it to do its thing all the time. Very impressed indeed with this superb piece of software from Mitsubishi.

Is there any reason why this (or any HT heat pump) couldn't be installed to directly replace the boiler on a y-plan system? It seems to me that it just needs a few feet of copper pipe to get from where the boiler is to the new HP and that would be about all that's needed. And for that price the BUS would cover the cost 100%. I really like the way it would match the black basalt of my new gravel drive too!

35p per kwh that's $0.45USD why is electricity so expensive in the UK I got mad when they raised it from $0.08 to $0.11 do you not have nuclear power

Hey guys, please can you to advise whether the noise coming from my Ecodan is normal/close to normal? It's an 11.2kw model just been installed, and I don't know if there are grounds to complain or if this is normal when running a little harder. It was flowing at around 45c at time of the video, to heat the hot water tank. Video on my channel.

Does the alpha function off grid, with the Enphase inverters then continuing to generate?

Looks like they be revising the anti noise legislation then, oh there's allowance for those. Typical British response, need a fixed constitution, there is a new law every week in this place .

Great video and a nice job. Did you use the IQ7+ or the 7A?

thank u man

you are a lifesaver man...the electric that ive been using cus the panel not been working

what happen if a grid is off i mean do not provide electricity dose this micro grid generate electricity

Hi, so how this unit stands in real world year after when specs are out now? I'm debating to buy it and looks very good on paper but I haven't find many reviews of this unit so I don't know how it is in terms of durability and performance. Also LG is planning to release new Therma V in January with R290 coolant so what do you think will be a better unit ? It's worth to wait for LG or buy this Samsung? Appearance is very similar but specs are not known yet for LG, at least I haven't found them. Thanks!

😳 'Promosm'