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littlespark

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A customer of mine has asked For best air con unit for a domestic bedroom. They already have a tower on wheels type but are looking for something built into the wall.

I would think these would be specialist units, but is there a simple out of the box solution?

I haven’t visited so I don’t know the room size yet, then I’d have to work out the cooling BTU.

She sent me a link for aircondirect.co.uk on the wall split types.

Any recommendations from you experts?
 
No.... but another factor is that I have a sneaking suspicion that they come under building control, so you'll need to involve the LBC.
 
I was thinking that. A builder would need to make the hole for it, unless it’s just a few core holes.
It would depend on size?
 
It's probably worth speaking to a local air-con installer. You do the power, they do the air-con.

You never know, it could lead to more work with them!
There isnt one near me, apart from an electricians that do it as a side line.

The last company i had dealings with was when i worked at a caravan site, and we needed ones for the bar building. The company at the time completely undersized the units, so we got nothing but complaints from customers sitting in the cold draughts.
 
It needs a professional design and install.
There is no quick fix out of the box solution, every installation is unique.

If it's not done correctly the customer will be wide awake all night in a nice cool room.
Kept awake either because whoever fitted it didn't use an indoor unit with low speed quiet fan and or they located the outdoor unit so the noise from the condenser fan either kept them awake or kept the neighbours awake, who then spent all night complaining to them about the noise.
It's even more important nowadays with the condenser fans all being Variable speed controlled, the constant speed up / slow down is more disturbing than a fixed speed but is more energy efficient.

At worse it could end up with Environmental Health issuing a notice to have the outdoor unit shut down or removed.

I'm not an A/C engineer but worked around A/C as a Commercial Building Services engineer for my last 25 years at work.
 
I think my customer is going to be buying it from the website i mentioned. she just wants a good manufacturer, and ill do the supply for it.
Someone has already mentioned the system needs to be calculated for the heat loading and temperature requirements.

Ordering on line without experts input is asking for trouble.

There should be plenty of HV/AC outfits local to you, that deal with Domestic A.Cs, you will need an electrical supply and the only Hole from inside to outside will be for the A.C Pipework, interconnecting electrics and condensate pipework, allow for insulation if you are cutting the hole yourself.
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I think my customer is going to be buying it from the website i mentioned. she just wants a good manufacturer, and ill do the supply for it.
Who will be doing the pipework installation? if it's you will need specialist equipment, gauges, vac pump., pipe bender (the pipework is a dfferent gauge from plumbing pipe), Pipe flaring set, unless of course your client opts for the plug and play type, with which Aesthetics are not a factor, great big unit with pipework hanging out of a window, which in it's self is a crazy method, as we all know to control the temp and humidity the area to cooled, will need to be sealed.
 
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I think she just wants something like the domestic tabletop or tower ones on wheels.... a glorified fan.... She thought there was a wall mounted type without all the interconnecting wiring and plumbing.
 
I think she just wants something like the domestic tabletop or tower ones on wheels.... a glorified fan.... She thought there was a wall mounted type without all the interconnecting wiring and plumbing.
Oh right thanks
 
Most split units can be obtained pre charged, so it's only a connection and turn on required the hole needed through the wall is about 50mm core, can't remember the exact size, but as has been mentioned the indoor units are not that quiet, if the person in the bedroom has been living with a fan on then they would only notice the reduction in noise, the outside units can be very obtrusive to neighbours or even the owner occupier if they sit in the garden close to the unit. I have a Fujitsu 1200 expensive and a very good unit, been in for over fifteen years and still going, the other unit I have is a "Firstline" very cheap from Spain also a 1200 unit and I can't tell the difference between either of them, bot came pre-charged so no involvement from specialist installers or equipment, both are reversible so heat as well as cool.
 
Most split units can be obtained pre charged, so it's only a connection and turn on required the hole needed through the wall is about 50mm core, can't remember the exact size, but as has been mentioned the indoor units are not that quiet, if the person in the bedroom has been living with a fan on then they would only notice the reduction in noise, the outside units can be very obtrusive to neighbours or even the owner occupier if they sit in the garden close to the unit. I have a Fujitsu 1200 expensive and a very good unit, been in for over fifteen years and still going, the other unit I have is a "Firstline" very cheap from Spain also a 1200 unit and I can't tell the difference between either of them, bot came pre-charged so no involvement from specialist installers or equipment, both are reversible so heat as well as cool.
Yes Mike I agree on smome oints , pre charged ,ETC, but to just connect up the pipe and turn on is foolhardy, why? how do you know the joints aren't leaking and how will you prove the A.C is operating correctly without a pressure test, bit like the BANG test with Electrics I suppose.
 
You just have to rely on your own expertise, a bit like knowing you have tightened up the terminal screws on a MCB/RCD sufficiently not to cause the big bang, the units are pressurised to the operating system for the full length of the supplied pipework so no re-swaging needed.
 
You just have to rely on your own expertise, a bit like knowing you have tightened up the terminal screws on a MCB/RCD sufficiently not to cause the big bang, the units are pressurised to the operating system for the full length of the supplied pipework so no re-swaging needed.
Unless of course you don't loose any refrigerant on the install, but in theory you are right, in practice not so sure.
 
I am sure that in your time you have done up a few compression fittings successfully and that, after all is all they are. ;)
I guess Mike, you have your opinion, and I have mine, we will never agree wholeheartedly, so you stick to your idea and I'll stick to mine, having done many a split A.C installs, I know I'm right, to avoid any bad feeling I'm leaving it there.
 
I’m tending to agree with mike here. Surely an off the shelf ac wall mounted unit is no different to a tower on wheels or tabletop variety. It’s only when you get into the split units you can have leaks caused by installation.
not much different to a fridge??

now another question.... are these generally plug in jobs or am I going to need a higher rated supply? 20A? 32A?
I know, depends on what she picks.

best bet would be to advise her to get a known brand.... Fujitsu, as suggested, or I remember the ones we had in the bar were panasonic
 
I’m tending to agree with mike here. Surely an off the shelf ac wall mounted unit is no different to a tower on wheels or tabletop variety. It’s only when you get into the split units you can have leaks caused by installation.
not much different to a fridge??

now another question.... are these generally plug in jobs or am I going to need a higher rated supply? 20A? 32A?
I know, depends on what she picks.

best bet would be to advise her to get a known brand.... Fujitsu, as suggested, or I remember the ones we had in the bar were panasonic
LS how will you get rid of the heat you have removed from the room , if you use a tower or table top unit?
 
With a tower or table top unit you have to stick the hose out of the window, but more importantly you have to manage the condensate as well, usually a tray at the bottom of the unit expertly designed to spill everywhere when you try to empty it. :eek:
 

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