On 19/04/2018 13:36, David wrote:

Most simple split domestic aircon setups seem to have a wall mounted unit
which is more or less opposite the external chiller.

The most logical setup for me would be the fan unit on the upstairs
landing on the ceiling, so it could (attempt to) cool the whole house.

Proper AC is more that just adding cold air - it also needs to collect
and dehumidify the warm wet air. So trying to do a whole house with only
one air handler is going give a pretty poor performance with the only
room that's properly comfortable being the one you are not in most of
the time!

Presumably no more complex that installing a loft hatch, possibly easier.

Yup the cassette style ceiling mount ones are easy enough to install.

Note that one external unit can support multiple internal air handlers
ins some cases. So you may find that cooling the rooms you actually want
to is easier than you might expect.

Has anyone on here done this kind of installation?

Not personally.

There is a good article on the install of a pre-charged split unit on
the wiki:

http://wiki.diyfaq.org.uk/index.php/...ir_Conditioner

Most of that would be applicable to ceiling mounted air handlers as well
(if you can get a precharged one)


More Googling this evening but the sun is shining...

Cheers


Dave R




--
Cheers,

John.

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