RE: Re: O/T - AirCon (yes, even at this time of the year)

["Keith Doxey" <ukha@xxxxxxx>]

Just given this some more thought and can see a MAJOR problem.

Consider a car heater in the middle of winter.

If you set it to recirculate the air rather than drawing air into the car
>from
freezing but after the first bit of air has warmed and raised the the car
to
say 5C the air going back into the heater will be 5C so the air coming out
will be warmer than if it was still entering at 0C.

The converse is true with Aircon. When you first start it running in a
normal room their is cool air coming out of it because hot air is going
into
the chiller. As the room cools you get cool air entering the chiller and
COLD air coming out.

If the unit is in the loft ( a location that gets unbearably hot during the
summer ) you will do well to get cool air from the outlets and the unit
will
be working VERy hard to achieve this. You need to arrange for the air
intake
to be taken from the room being cooled so that the chiller will have less
work to do as the room temperature drops. Eventually it will get down to
temperature and shut off.

The duct with inline fans will be ideal. I was considering the same thing
so
that I would pull the cold air down the tube rather than just relying on
the
aircon fan to push it down the tube.

Keith

-----Original Message-----
From: geraint@xxxxxxx [mailto:geraint@xxxxxxx]
Sent: 08 November 2001 22:01
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: O/T - AirCon (yes, even at this time of the year)


Well what I was wondering was if I could use like a inline bathroom
extractor fan in the pipework which would sort of "push" or
"pull"
the cold air from the ducting, hopefully creating a bit of a
circulation issue. Do you think that would be a go-er ?

See what you mean about the temperature sensor though, again mine
would be similar. i.e sensor in the loft, actual cooling in the
bedroom.

Going to have to get creative with this. Maybe find one thats more
mechanical on the controls, and then just x10 it with an AD10 or one
that I could "hack" the main control board and install into a box
locally in the bedroom.

Cheers
Geraint.