The ''ECON'' button on the climate control, what does it exactly do ? Options

[UndaGrwnD]

as the title says: ''The ''ECON'' button on the climate control'' , what does it do exactly?

it has to do with the A/C

[ricochet1490]

it's the open vent I believe.... instead of recirc...

There are NOT two speeds for the A/C compressor. It's an electromagnet that turns on (electric cluctch) and is either ON or OFF. For cars with manual control you have the a/c button with which you can turn the coompressor on and off manually. With the auto climate control, you lose some features... let me explain.

With the manual control you also have the recirculate button (aka max ac) , or the button with the arrow that passes straight through (aka open vent)

These two functions, recirc and open vent, are just where the exchanger gets it's air from. If the exchanger gets its air from the outside at say 36C or 97F it has to do a lot of work to cool it off to say 20C for the inside of the car (causes the compressor to work harder.... more inefficient). with the recirculate on, it draws it's air form the inside of the car that has already been cooled, to say 30C, or 26 C so it doesn't have as large of a temperature difference to make up.
So you can choose to have the A/C on with either the air being drawn from the inside of the car, or the outside of the car....

When you have the auto climate control, the controls objective is to obtain the temperature you've set. In this case, I BELIEVE the ECON button is the "open the vent, but turn the compressor off" button. with the A/C on, it's the "a/c is on with the recirc also on" (because that is the most efficient and really the only way the A/C should ever be on from an efficiency stand point)

So in conclusion, A/c is compressor on with recirculate also on
ECON is the compressor off with the vent open to the outside to let the outside air cool the inside of the car off.


This post has been edited by ricochet1490: Apr 1, 2012 - 12:33 AM

[hatchy_gt-s]

it's the open vent I believe.... instead of recirc...

There are NOT two speeds for the A/C compressor. It's an electromagnet that turns on (electric cluctch) and is either ON or OFF. For cars with manual control you have the a/c button with which you can turn the coompressor on and off manually. With the auto climate control, you lose some features... let me explain.

With the manual control you also have the recirculate button (aka max ac) , or the button with the arrow that passes straight through (aka open vent)

These two functions, recirc and open vent, are just where the exchanger gets it's air from. If the exchanger gets its air from the outside at say 36C or 97F it has to do a lot of work to cool it off to say 20C for the inside of the car (causes the compressor to work harder.... more inefficient). with the recirculate on, it draws it's air form the inside of the car that has already been cooled, to say 30C, or 26 C so it doesn't have as large of a temperature difference to make up.
So you can choose to have the A/C on with either the air being drawn from the inside of the car, or the outside of the car....

When you have the auto climate control, the controls objective is to obtain the temperature you've set. In this case, I BELIEVE the ECON button is the "open the vent, but turn the compressor off" button. with the A/C on, it's the "a/c is on with the recirc also on" (because that is the most efficient and really the only way the A/C should ever be on from an efficiency stand point)

So in conclusion, A/c is compressor on with recirculate also on
ECON is the compressor off with the vent open to the outside to let the outside air cool the inside of the car off.

I think you're wrong only because it has resirc/open vent as well.
My beliefe is like most cars here in the states already do, the compressor actually runs in an on/off sequence to allow for better fuel economy, this is just an option in other countries.
Only a theory. BTW this if for sale


This post has been edited by hatchy_gt-s: Apr 26, 2012 - 1:25 PM