Recommendations for domestic aircon

[Midwest]

I’ve been recommended a Mitsubishi Zen for a particular room, allegedly quiet. They come as a kit, but as others have said has to be installed by qualified HVAC engineer.

 

[Mike Johnson]

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.

 

[Pete999]

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.

 

[Mike Johnson]

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.

 

[Pete999]

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.

 

[Mike Johnson]

I am sure that in your time you have done up a few compression fittings successfully and that, after all is all they are.

 

[Pete999]

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.

 

[littlespark]

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

 

[Pete999]

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?

 

[Mike Johnson]

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.