arnis
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Leaf Number: 015896
Location: Estonia, Europe

Recirculation has 3 modes to select: ON-OFF-MILD

Tue Feb 09, 2016 12:43 pm

Did you know that if you press recirculation button, air will be recirculated 100%.
If you press again, air will be 0% recirculated, but default AUTO mode or holding
recirculation button until it blinks twice (AUTO recirculation) usually has 20-30%
air recirculation. I read that in technical papers and verified just by listening.


It's true that in hot weather recirculation LED switches on if AC is used heavily
but that shows heavy recirculation. No way to see moderate recirculation.
Maybe this is why Leaf does fog up more than my ICE bimmer. I'll have some tests.
Perfect weather for foggy windows here in February :lol:

I believe I saw something similar in my bimmer. It has REAL automatic recirculation
mode that sniffs outside air for pollutants and activates if necessary with timer
limitations in heating/cooling. It has three doors that change their angles even in
fresh mode. I'll check that as soon as I crank my 40MPG diesel monster :mrgreen:

Anybody bored - check it out in the earliest Leafs too.
Anybody with CO2 meter and 4 extra passengers going on a trip :?: :)
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BrockWI
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Re: Recirculation has 3 modes to select: ON-OFF-MILD

Tue Feb 09, 2016 2:30 pm

Oh I so have to try this, in the spring and fall here I am constantly switching recirc on until the back windows are fogged over and it starts to hit the front, then switch recirc off until they are clear again and then back on again. Having a 25% recirc would be just about right.

I really liked in our old Mazda it was a manual lever and you could move it to any percentage of recirc you want. I heard they removed it becasue some people would leave it on recirc and then complain the windshield wouldn't clear, so they took away that option.
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jjeff
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Leaf Number: 422121
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Re: Recirculation has 3 modes to select: ON-OFF-MILD

Tue Feb 09, 2016 3:44 pm

arnis wrote:Did you know that if you press recirculation button, air will be recirculated 100%.
If you press again, air will be 0% recirculated, but default AUTO mode or holding
recirculation button until it blinks twice (AUTO recirculation) usually has 20-30%
air recirculation. I read that in technical papers and verified just by listening....

Just tried and the only caveat with this tip is apparently the recirc cannot be turned on if using any form of defrost. Since in the winter here I always have at least partial air directed to the windscreen(I have both floor and windscreen on) any recirc isn't possible :(
I could get the recirc to flash if I turned off any form of air being directed to the windscreen, it would flash if already in recirc and holding the button or if recirc was off and I held the button in. Note it only flashes for a brief period of time and then the light goes out, so I guess you have to just remember it's in that mode.....IOW I would have liked it to have continued to flash to remind me it was in the 20-30% recirc mode and I wonder what happens if you turn the car off, will it stay in the 20-30% mode or will it return to 0% recirc once turned back on.....
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LeftieBiker
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Re: Recirculation has 3 modes to select: ON-OFF-MILD

Tue Feb 09, 2016 10:24 pm

I tried the "Mild" mode tonight, and it seems to work pretty well. I was driving a road with lots of trucks, where I normally have to keep switching Recirculate on, off, on, over and over. So I set the CC to Floor only (I discovered that this also provides a little bit of Defrost), the fan on 3, and used the Mild Recirculate mode. I got no noticeable blasts of diesel exhaust in the car while doing so, and the windshield stayed clear. I wish I'd known about this in 2013...
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jjeff
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Re: Recirculation has 3 modes to select: ON-OFF-MILD

Wed Feb 10, 2016 7:01 am

LeftieBiker wrote:I tried the "Mild" mode tonight, and it seems to work pretty well. I was driving a road with lots of trucks, where I normally have to keep switching Recirculate on, off, on, over and over. So I set the CC to Floor only (I discovered that this also provides a little bit of Defrost), the fan on 3, and used the Mild Recirculate mode. I got no noticeable blasts of diesel exhaust in the car while doing so, and the windshield stayed clear. I wish I'd known about this in 2013...

Once in that mode does it ever go out? IOW if you push defrost to totally turn recirc off and then go back to floor does it return to the 20-30% or does it simply go back to 0% recirc? and therefor require another holding down of the recirc button to get it back in that mode...
Agreed, in warmer times when I don't have to use so much defrost it will be a handy option.
2012 SL purchased used 2/'16
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BrockWI
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Re: Recirculation has 3 modes to select: ON-OFF-MILD

Wed Feb 10, 2016 7:36 am

Just from listening to what it does it seems as soon as you switch to a mode that wouldn't allow the recirc on, like from floor to floor / windshield, it goes to all outside air and if you switch back to just floor it is still all outside. I could notable hear it switch when I pushed and held it after switching back to just floor. That would lead me to believe it is a one time thing. I should have shut the car off and turned it back on but didn't think of it at the time.
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jjeff
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Re: Recirculation has 3 modes to select: ON-OFF-MILD

Wed Feb 10, 2016 7:57 am

I guess it makes sense that it should default back to 0% recirc after switching modes, otherwise without a visible notification you were in 20-30% mode, you could just assume you were in 0%(or no) recirc mode. Personally I wouldn't mind if the recirc light always blinked when in that mode but maybe they thought it could be distracting or generally something blinking is trying to draw your attention that something might be wrong....still kind of a nice feature if you know about and have use for it.
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

BrockWI
Posts: 632
Joined: Fri Mar 28, 2014 6:28 am
Delivery Date: 28 Mar 2014
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Re: Recirculation has 3 modes to select: ON-OFF-MILD

Wed Feb 10, 2016 8:02 am

The perfect application for a two color LED :)
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2003 VW TDI 180k miles - 52 mpg lifetime
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2013 S model with QC package Mar of 2013
@70k miles - 56.56Ahr - 86 SOH - 82.55 Hx - 245 GID

aarond12
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Location: Dallas, TX

Re: Recirculation has 3 modes to select: ON-OFF-MILD

Wed Feb 10, 2016 9:03 am

I tried it this morning on my 2015 LEAF S. The recirc button ignored the long press and didn't even turn on the recirculation.
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LeftieBiker
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Re: Recirculation has 3 modes to select: ON-OFF-MILD

Wed Feb 10, 2016 5:22 pm

aarond12 wrote:I tried it this morning on my 2015 LEAF S. The recirc button ignored the long press and didn't even turn on the recirculation.


Try the usual short press, followed by a long one.
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2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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