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| KTECH 2005-07-17, 11:25 pm |
| This probably came up beforebut I still am not sure of the answer.
My AC condenser is exposed to the sun for a good part of the day.
I have often thought that by making some sort of a covering to ward off the
sun the unit would cool better and perhaps not work as hard.Any ideas?
Frank
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"KTECH" <ktech@core.com> wrote in message
news:11dlmrsd0ugrsb3@corp.supernews.com...
quote:
> This probably came up beforebut I still am not sure
> of the answer.
> My AC condenser is exposed to the sun for a
> good part of the day. I have often thought that by
> making some sort of a covering to ward off the sun
> the unit would cool better and perhaps not work as
> hard.Any ideas?
> Frank
>
No ideas off the top of my head, but ... yes, getting
the sun off an air conditioner will make it work better
and more effieicntly. The trick though is not to block
any air flow.
It varies from unit to unit, but it can be done. I
had some noticeable luck and a measured increse in the
cooled air temp of a few degrees just by putting
mirror-film on the case of one of mine, a 10k btu unit.
Since the western sun hits it both from the top and the
west-side directly it was hard to figure any way to get
the sun off it without stopping some air flow.
The tree I finally planted does a great job now,
after only a few years.
BTW, it only took the film idea a few weeks to get
so dirty it didn't reflect anymore so it's not a good
answer.
I suppose there are ways to do it with properly
positioned louvres but that's beyond my abilities <g>.
The tree worked best in the long run, for me at least.
Also shades part of the hosue of course.
HTH
Pop
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| Steve@carolinabreezehvac.com 2005-07-17, 11:25 pm |
|
"KTECH" <ktech@core.com> wrote in message
news:11dlmrsd0ugrsb3@corp.supernews.com...
quote:
> This probably came up beforebut I still am not sure of the answer.
> My AC condenser is exposed to the sun for a good part of the
day.
quote:
> I have often thought that by making some sort of a covering to ward off
the
quote:
> sun the unit would cool better and perhaps not work as hard.Any ideas?
> Frank
>
>
No...wont make any difference you will ever see.
Want proof? Just look at the millions of units in CA, NV etc that are
installed on rooftops....and yes, I started working in the deserts of CA in
HVAC, and I can promise you, the units are designed to be outside, in the
sun...and work.
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| Greg O 2005-07-17, 11:25 pm |
|
"KTECH" <ktech@core.com> wrote in message
news:11dlmrsd0ugrsb3@corp.supernews.com...
quote:
> This probably came up beforebut I still am not sure of the answer.
> My AC condenser is exposed to the sun for a good part of the day.
> I have often thought that by making some sort of a covering to ward off
> the sun the unit would cool better and perhaps not work as hard.Any ideas?
> Frank
>
The cost of any cover will be more than any return you will see in
efficiency. Plus you want the AC to be in the open as much as possible to
get good air flow around and above the unit. Good chance a roof over it
would block the air flow enough to be counter productive!
Leave it alone!
Greg
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| Joseph Meehan 2005-07-17, 11:25 pm |
| KTECH wrote:
quote:
> This probably came up beforebut I still am not sure of the answer.
> My AC condenser is exposed to the sun for a good part of the
> day. I have often thought that by making some sort of a covering to
> ward off the sun the unit would cool better and perhaps not work as
> hard.Any ideas? Frank
Not likely. The AC is looking for Air temp and that is not going to be
much different with or without shade. In fact if the shade reduces the air
flow, it will increase operating expense.
--
Joseph Meehan
Dia duit
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| Harry K 2005-07-18, 4:25 am |
|
Joseph Meehan wrote:
quote:
> KTECH wrote:
>
> Not likely. The AC is looking for Air temp and that is not going to be
> much different with or without shade. In fact if the shade reduces the air
> flow, it will increase operating expense.
>
> --
> Joseph Meehan
>
> Dia duit
Then there is the effect that the condenser is buried in the housing,
not being hit directly by the sun. As soon as the unit kicks on (or
very soon thereafter) the interior of that housing is going to be at
the ambient air temp anyhow. The heat exchangers (radiators) will also
reach operating temperature whether the sun hits them or not.
Harry K
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| TURTLE 2005-07-18, 4:25 am |
|
"KTECH" <ktech@core.com> wrote in message
news:11dlmrsd0ugrsb3@corp.supernews.com...
quote:
> This probably came up beforebut I still am not sure of the answer.
> My AC condenser is exposed to the sun for a good part of the day. I
> have often thought that by making some sort of a covering to ward off the sun
> the unit would cool better and perhaps not work as hard.Any ideas?
> Frank
This is Turtle
This question has been ask at least a 100 times that i know of and here is what
was said just about everytime.
The HVAC People and some manufactors say it makes very little difference as to
sun hitting it or not. Now when they say that it is on the thought that it will
run just fine but at a little higher head pressure which will cost a little bit
more to operate the system. This will come from the ground, unit, and area
around the unit will be heated up and will be putting off heat to be sucked into
the condenser coil which will be a little higher temperature than if it was
setting in the shade. Now this small amount of added heat is small but may not
justify any cost to build a shade cover for it but shading may not be cost
effective but it does save a little money to shade it.
I researched it over the internet and came up with a few good sights that said
it saved money but none said how much. Now here is one from the Florida Public
Service Commision on 101 ways to save on your electric bill. Check out Artical
number 53 to see about condenser in the sun.
http://www.floridapsc.com/general/p...s/101summer.cfm
TURTLE
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| Richard J Kinch 2005-07-18, 4:25 am |
| TURTLE writes:
quote:
> I researched it over the internet ...
You don't need any research.
Just put your clamp-on ammeter on the compressor, and hold up a big sheet
of something lightweight to turn the shade on and off. Does it register
anything on the meter when you do so?
Would like to hear your results.
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| Stormin Mormon 2005-07-18, 6:25 pm |
| My understanding of things, shade is cooler. However, I've seen one study
where they did one test (two houses, one in the shade) and found less than
5% savings.
I'd go wtih the shade, as long as it isn't blocking the air flow.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com
"KTECH" <ktech@core.com> wrote in message
news:11dlmrsd0ugrsb3@corp.supernews.com...
This probably came up beforebut I still am not sure of the answer.
My AC condenser is exposed to the sun for a good part of the day.
I have often thought that by making some sort of a covering to ward off the
sun the unit would cool better and perhaps not work as hard.Any ideas?
Frank
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| Stormin Mormon 2005-07-18, 6:25 pm |
| I'm guessing with as large a mass, it would take an hour or so to make any
readable difference.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com
"Richard J Kinch" <kinch@truetex.com> wrote in message
news:Xns969789E5B15Fsomeconundrum@216.196.97.131...
TURTLE writes:
quote:
> I researched it over the internet ...
You don't need any research.
Just put your clamp-on ammeter on the compressor, and hold up a big sheet
of something lightweight to turn the shade on and off. Does it register
anything on the meter when you do so?
Would like to hear your results.
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| TURTLE 2005-07-18, 6:25 pm |
|
"Richard J Kinch" <kinch@truetex.com> wrote in message
news:Xns969789E5B15Fsomeconundrum@216.196.97.131...
quote:
> TURTLE writes:
>
>
> You don't need any research.
>
> Just put your clamp-on ammeter on the compressor, and hold up a big sheet
> of something lightweight to turn the shade on and off. Does it register
> anything on the meter when you do so?
>
> Would like to hear your results.
This is Turtle.
Hummmm , I will try this in the next day or two while working on the systems.
I'll get back to you.
TURTLE
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| FChoquette 2005-07-19, 4:25 am |
| Instantaneous current mesurement isn't the answer. When the compressor
is running, it always requires the same power. But maybe it will run
less often to keep the set point...
Watt hour meter is the required device to compare for example, two
similar weeks temperature.
Frank
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| ~^Johnny^~ 2005-07-19, 4:25 am |
| -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Mon, 18 Jul 2005 14:46:08 GMT, "Stormin Mormon"
<cayoung61-#spamblock*-@hotmail.com> wrote:
quote:
>My understanding of things, shade is cooler. However, I've seen one
>study where they did one test (two houses, one in the shade) and
>found less than 5% savings.
>
>I'd go wtih the shade, as long as it isn't blocking the air flow.
Sounds shady to me.
-----BEGIN PGP SIGNATURE-----
Version: PGP 7.1
iQA/AwUBQtxd0QIk7T39FC4ZEQILtQCg+zO6HqA/qlTmA5OHQijDJKZgx3sAoNQz
oKrZlYldivebj+5n6N9X4ltj
=Ir+H
-----END PGP SIGNATURE-----
--
-john
wide-open at throttle dot info
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| Richard J Kinch 2005-07-19, 4:25 am |
| Stormin Mormon writes:
quote:
> I'm guessing with as large a mass, it would take an hour or so to make
> any readable difference.
If the input of radiant energy of sunlight makes any difference, it would
have to exhibit a quick response in this system.
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| Richard J Kinch 2005-07-19, 4:25 am |
| FChoquette writes:
quote:
> Instantaneous current mesurement isn't the answer. When the compressor
> is running, it always requires the same power.
If the input of radiant energy of sunlight makes any difference, it would
have to exhibit a quick response in this system.
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FChoquette wrote:
quote:
> Instantaneous current mesurement isn't the answer. When the compressor
> is running, it always requires the same power.
Where in the hell did you get that stupid notion from?
hvacrmedic
But maybe it will run
quote:
> less often to keep the set point...
>
> Watt hour meter is the required device to compare for example, two
> similar weeks temperature.
>
> Frank
>
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|
|
FChoquette wrote:
quote:
> Instantaneous current mesurement isn't the answer. When the compressor
> is running, it always requires the same power.
Where in the hell did you get that stupid notion from?
hvacrmedic
But maybe it will run
quote:
> less often to keep the set point...
>
> Watt hour meter is the required device to compare for example, two
> similar weeks temperature.
>
> Frank
>
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| Stormin Mormon 2005-07-24, 9:06 pm |
| Ignorance, d'you think?
--
Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com
"RP" <no_mail_no_spam@yahoo.com> wrote in message
news:24CdnWlqKJDPqkDfRVn-pg@centurytel.net...
FChoquette wrote:
> Instantaneous current mesurement isn't the answer. When the compressor
> is running, it always requires the same power.
Where in the hell did you get that stupid notion from?
hvacrmedic
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| Stormin Mormon 2005-07-24, 9:06 pm |
| Actually, compressor current draw can be more or less. Depending on the
load, back pressure, over or under charged, etc. It really is a variable.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com
"FChoquette" <fchoquette@gmail.com> wrote in message
news:1121737944.802152.283220@g43g2000cwa.googlegroups.com...
Instantaneous current mesurement isn't the answer. When the compressor
is running, it always requires the same power. But maybe it will run
less often to keep the set point...
Watt hour meter is the required device to compare for example, two
similar weeks temperature.
Frank
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