Default - Recirculated Air - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Chad86 · 07-23-2014, 06:37 PM

Is the reason why the HVAC controls default to recirculated air due to the hot air coming into the cabin from the engine all the time?

Kaotic Lazagna · 07-24-2014, 01:54 AM

Anyone know how to disable the recirculated default setting?

Weasel Soup · 07-24-2014, 02:15 AM

<---raises hand...

I wanna know why and how too.

InspGadgt · 07-24-2014, 03:42 AM

Recirculated air is the default for max ac. It recirculates the air in the cabin to cool it down faster. So it is cooling air that has already been cooled. The only air coming in from the engine bay would be from the noise generator.

Target70 · 07-24-2014, 04:13 AM

air doesn't travel through the noise generator, the generator body is a sealed diaphragm. If it was open then the engine would be sucking in un-metered air.

and I could be crazy, but I don't remember my a/c turning on recirculation unless I press the button. It will turn it off though if you switch the vent zone to defrost/windshield

VacantSky · 07-24-2014, 05:20 AM

Quote:

Originally Posted by Target70

air doesn't travel through the noise generator, the generator body is a sealed diaphragm. If it was open then the engine would be sucking in un-metered air.

and I could be crazy, but I don't remember my a/c turning on recirculation unless I press the button. It will turn it off though if you switch the vent zone to defrost/windshield

They're more than likely talking about the auto-climate control.

Like previously stated, for max AC option the car usually will recirculate the in cabin air as it already has been cooled. Therefore it will be cooling colder than ambiant air making the cooling effect quicker

Target70 · 07-24-2014, 07:31 AM

Quote:

Originally Posted by VacantSky

They're more than likely talking about the auto-climate control.

Like previously stated, for max AC option the car usually will recirculate the in cabin air as it already has been cooled. Therefore it will be cooling colder than ambiant air making the cooling effect quicker

auto-climate control, is that the premium a/c option or dual climate or something? I just have the base a/c. I'll have to test it out on my trip to work tomorrow.

ntron1 · 07-24-2014, 07:40 AM

Quote:

Originally Posted by Chad86

Is the reason why the HVAC controls default to recirculated air due to the hot air coming into the cabin from the engine all the time?

Default recirc improves the grams/mile emissions rating resulting in a higher mpg rating which helps their CAFE (Corporate Average Fuel Economy). The 86 is pretty well sealed in the engine bay, thus the hot air, so recirc in this case is a good thing.

VacantSky · 07-24-2014, 08:45 AM

Quote:

Originally Posted by Target70

auto-climate control, is that the premium a/c option or dual climate or something? I just have the base a/c. I'll have to test it out on my trip to work tomorrow.

Dual climate is what I meant yes, half asleep at work and lost for proper words!

07-24-2014, 02:15 AM	#3
Weasel Soup Veteran RallyCrosser Join Date: Apr 2014 Drives: 10 Series FR-S, 95 Escort Rally Car Location: Colorado Posts: 202 Thanks: 82 Thanked 92 Times in 46 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	<---raises hand... I wanna know why and how too. __________________ Everything should be attempted twice. Once to satisfy curiosity, and the second time to see if you like it. My Journal 2016 SCCA RallyCross National Champion - Prepared Rear Wheel Drive

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InspGadgt Senior Member Join Date: Jun 2014 Drives: 2015 Scion FR-S (Asphalt) Location: Hawaii Posts: 131 Thanks: 2 Thanked 28 Times in 19 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Recirculated air is the default for max ac. It recirculates the air in the cabin to cool it down faster. So it is cooling air that has already been cooled. The only air coming in from the engine bay would be from the noise generator.

07-24-2014, 04:13 AM	#5
Target70 Senior Member Join Date: Dec 2013 Drives: 2013 Asphalt 6spd Location: Mid GA Posts: 783 Thanks: 265 Thanked 366 Times in 240 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	air doesn't travel through the noise generator, the generator body is a sealed diaphragm. If it was open then the engine would be sucking in un-metered air. and I could be crazy, but I don't remember my a/c turning on recirculation unless I press the button. It will turn it off though if you switch the vent zone to defrost/windshield

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