Cost of running aircon

["Richard Challis" <richard@xxxxxxx>]

Adding my thrupence t  the debait.

When I spent a couple of years working on Building Management systems, we
used the very rough rule of thumb that the cost of buying the Aircon unit
was the cost of running the unit for a year. Admittedly this was for a 24/7
enviroment.

Irronically this work got me interested in home automation and my first PLC
based system. (later leading ont  the Homevision)

Regards

Rich


----- Original Message -----
From: "Phil Harris" <phillip.harris1@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Thursday, July 05, 2001 7:20 PM
Subject: RE: [ukha_d] Re: Automating the split aircon unit


> I'm just estimating t  get t  800w but in my living room the running
time
is
> about 9-12 minutes on and then about 3 minutes off when the
temperature
has
> stabilised. Therefore in my living room you're looking at a duty cycle
of
> about 80% hence I reckon mine is averaging out at about 800w. The
single
> unit in Edwards room just runs continuously...
>
> Phil
>   -----Original Message-----
>   From: steve [mailto:steve@xxxxxxx]
>   Sent: 05 July 2001 11:13
>   To: ukha_d@xxxxxxx
>   Subject: Re: [ukha_d] Re: Automating the split aircon unit
>
>
>   When calculating eunning cost you need t  bear in mind that although
when
> running 24/7 the internal fans runs continuously. The pump and
external
fan
> do not. (assuming your not trying t  cool a concert hall) As they cut
out
> when desired temp is reached.
>
>
>   Whilst the cooling capacity is 2600Kw the cooling consumption is
1060kw
> (which is a max and will assuming all fans & pumps running)
>
>   There for the 800 and something mentioned is way OTT
>
>   Steve
>
>
>
>
>
>
>
>
>   To: ukha_d@xxxxxxx
>     Sent: Thursday, July 05, 2001 12:00 AM
>     Subject: [ukha_d] Re: Automating the split aircon unit
>
>
>     --- In ukha_d@y..., "steve" <steve@b...> wrote:
>     >
>     > 3 year warranty - run it 24/7 if you need t
>
>     Good point :)
>
>     > Mines been on 24/3 but thats due t  the weather and being
british
>     wont last.
>
>     Another post just made me wonder about the cost of 24/7 since it
>     would work out quite expensive running costs. Maybe I should
return
>     one of those "your home has been selected for solar power
testing"
>     mailshots (that are so not targetted) or something :)
>
>     Mark.
>
>
>
>
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