Difference between AC and climate control? - Civinfo
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post #1 of 24 (permalink) Old 21st April 2013, 00:27 Thread Starter
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Difference between AC and climate control?

What's the difference between AC and climate control
On the dual zone system?

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post #2 of 24 (permalink) Old 21st April 2013, 01:50
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A/C is just cold air and climate control is well.....controlling the temperature by using warmer air lol

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post #3 of 24 (permalink) Old 21st April 2013, 02:52
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A/C is like using a heater on an old car but it will go colder- you adjust speed/heat/direction manually

climate control goes one stage further allowing you to set the desired temp then letting the system make the adjustments to fan speed etc to hold that temp in car
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post #4 of 24 (permalink) Old 21st April 2013, 07:59 Thread Starter
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Which is worse for fuel economy? A/C or climate control?
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post #5 of 24 (permalink) Old 21st April 2013, 08:16
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Originally Posted by pd823 View Post
Which is worse for fuel economy? A/C or climate control?
CC usually

After all these questions wouldn't it be nice to support the site and buy a sticker http://www.civinfo.com/forum/site-su...port-site.html Thanks
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post #6 of 24 (permalink) Old 21st April 2013, 09:09 Thread Starter
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Done! I'm a supporter now Alan2605, didn't even know it was an option; especially after all those questions.
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post #7 of 24 (permalink) Old 21st April 2013, 10:21
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Done! I'm a supporter now Alan2605, didn't even know it was an option; especially after all those questions.
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Hope you enjoy the forum. There is a wealth of information already on the site.
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post #8 of 24 (permalink) Old 21st April 2013, 10:28
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I would guess AC uses most fuel as this would be running all the time were a CC would cut in and out.
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post #9 of 24 (permalink) Old 21st April 2013, 10:33
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Air conditioning is just that air being conditioned and fresh air being brought in "cleaned" and into cabin and old taken out.

Climate control is controlling temperature


When cc is on so is ac


From most tests cc and ac barely reduce mpg not enough to really care and you reduce mpg far far far fr more opening a window!


I'd rather drive and get 1 mpg less per tank but in lovely comfortable temperature.
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post #10 of 24 (permalink) Old 21st April 2013, 10:33
 
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CC usually

After all these questions wouldn't it be nice to support the site and buy a sticker http://www.civinfo.com/forum/site-su...port-site.html Thanks
Surely the effect to mpg would be wholly dependant on ambient temperature conditions and settings. For example, on a hot summer day, whether you have AC on or climate set to auto 20, the effects will be the same. On a cold day the demand on the AC will be low or non existent, so the effect to mpg will be minimal.

Basically the warmer and more humid it is, the more effect you'll have to your fuel consumption. To achieve a desired cabin temperature/feeling, whether by manual AC or climate control will require the same amount of energy. Just leave it on auto 20 and leave it to do its thing.

Remember it is designed in auto mode to be as economical as possible. When you manually change the settings it over-rides the auto settings and just does what you ask it, so if anything it will be worse. So by manually changing settings could mean that it is running at a higher duty cycle than in auto mode (because you've asked it for different settings). If you want to save fuel turn AC off, keep your windows closed and sweat it out!
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post #11 of 24 (permalink) Old 21st April 2013, 10:42 Thread Starter
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Like the idea of Auto 20, all the time
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post #12 of 24 (permalink) Old 21st April 2013, 10:50 Thread Starter
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Like the idea of Auto 20, all the time
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post #13 of 24 (permalink) Old 21st April 2013, 10:50
 
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Like the idea of Auto 20, all the time
Sometimes I find 20 a little too warm in the winter and I shift it down to 19. On a bright sunny day I sometimes shift it to 21 or 22. Otherwise I find it works great and I get pretty decent fuel economy.

If you're really looking to save fuel, it's the winter you should look at. Starting the car and leaving it idle to warm up probably uses more fuel than AC throughout the rest of the year. Also stealing heat from the engine to warm the cabin is a pretty bad idea. When an engine is cold it produces really bad mpg, so in the winter you should keep the heater off until the engine is warm. But like AC in the summer, I am prepared to sacrifice a few mpg to take the edge off. Once the cabin reaches a steady state it doesn't use much energy to maintain equilibrium.
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post #14 of 24 (permalink) Old 21st April 2013, 14:39
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Quote:
Originally Posted by civilrights View Post
Sometimes I find 20 a little too warm in the winter and I shift it down to 19.
20C too warm for winter?

I put my CC on 32C in winter.
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post #15 of 24 (permalink) Old 21st April 2013, 14:56
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Max in winter, min in summer. Sorted!
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post #16 of 24 (permalink) Old 21st April 2013, 19:05
 
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Originally Posted by Grayfox View Post
20C too warm for winter?

I put my CC on 32C in winter.
I think your control units are different in aus. Our numbers don't go up as high in Europe (16-29). It's not degrees though, it's a suggested feeling. Psychologically for you lot 32 isn't that hot, whereas for us 32C would be record breaking summer! Even so, I would say 32 is an abnormally high setting for the auto climate. Whether you have it set to 32 or 16, when it's cold outside it will still try and warm the cabin up as quickly as possible. When the engine is cold setting the fan higher just blows more cold air at you, so with wind chill you'll feel colder. Diesels have the auxiliary electric bar heater to compensate for the colder running engine so this helps on cold mornings
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post #17 of 24 (permalink) Old 22nd April 2013, 14:26
 
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On my 9G low is 18 degrees and high is 32. I wish it went down to 16 degrees like some cars though.
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post #18 of 24 (permalink) Old 22nd April 2013, 14:30
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Quote:
Originally Posted by RobertUtley View Post
From most tests cc and ac barely reduce mpg not enough to really care and you reduce mpg far far far fr more opening a window!
I think I read somewhere that 50mph was the magic number - below this open your window, above use the A/C.

TBH most of the year my heater is on max anyway
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post #19 of 24 (permalink) Old 22nd April 2013, 14:31
 
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I think your control units are different in aus. Our numbers don't go up as high in Europe (16-29). It's not degrees though, it's a suggested feeling. Psychologically for you lot 32 isn't that hot, whereas for us 32C would be record breaking summer! Even so, I would say 32 is an abnormally high setting for the auto climate. Whether you have it set to 32 or 16, when it's cold outside it will still try and warm the cabin up as quickly as possible. When the engine is cold setting the fan higher just blows more cold air at you, so with wind chill you'll feel colder. Diesels have the auxiliary electric bar heater to compensate for the colder running engine so this helps on cold mornings
I remember one day last summer (in Sydney) when the iMid briefly read 49 degrees . Actual reported temperature from the radio news bulletin was a scorching 47.5 degrees. Yet the AC still managed to keep me reasonably cool.
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post #20 of 24 (permalink) Old 22nd April 2013, 14:31
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Quote:
Originally Posted by Syx View Post
I think I read somewhere that 50mph was the magic number - below this open your window, above use the A/C.

TBH most of the year my heater is on max anyway
Tbf I don't care for mpg I'm lucky to see 28mpg max in my 1.8 with the mods and hooning around town so may as well have air con cc and occasionally windows open at the same time lol
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