arnis
Posts: 753
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

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

Sat Feb 27, 2016 12:43 am

knightmb, if I press main AUTO mode it often switches 30% circulation on (2014 Leaf).
But it is cold here, in mild weather it might not.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

oz10k
Posts: 1
Joined: Wed Oct 18, 2017 6:29 am
Delivery Date: 18 Oct 2017

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

Wed Dec 06, 2017 11:46 am

The 2015 manual states "When in automatic mode, the indicator light will come on when inside air recirculation is active." I haven't yet seen this, but will start watching for it.

LeftieBiker
Posts: 7394
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

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

Wed Dec 06, 2017 11:53 am

oz10k wrote:The 2015 manual states "When in automatic mode, the indicator light will come on when inside air recirculation is active." I haven't yet seen this, but will start watching for it.


It doesn't happen that way. The light is lit steadily only when full recirculation is engaged.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

specialgreen
Posts: 41
Joined: Sun Mar 26, 2017 1:21 pm
Delivery Date: 26 Mar 2017
Location: Minnesota

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

Mon Dec 11, 2017 8:16 pm

Can anyone recommend a low-energy heater setting for winter 10 degrees F - 25 degrees F, on a model S ? I can't tell if I should do:
- heater
- recirculate : auto
- low fan (2-3 bars)

or
- heater
- main auto (push center button of right dial)

Reading the comments above, it sounds like "main auto" also uses "recirculate: auto". In my car, it seems to drive the fan at maximum RPM, or nearly so. Maybe the extra fan saves energy (by moving heat from the heater core quicker); or maybe it wastes energy (I think "fan motor load" energy consumption increases with the square of the fan RPM).

LeftieBiker
Posts: 7394
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

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

Mon Dec 11, 2017 10:12 pm

- heater
- recirculate : auto
- low fan (2-3 bars)


This is what you want, but I wouldn't go above 2 on the fan speed. If you set the ventilation to Floor only you will get enough defrosting air on the windshield as well.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

arnis
Posts: 753
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

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

Wed Dec 13, 2017 5:31 pm

Maximum efficiency is when recirculation is on - no matter fan settings, no matter temperature selection.
Almost no air escapes through exit vents. But everything fogs up eventually :lol:
The slower the fan is when recirculation is off, the less "losses" there are. Loss is heat lost through exit vents.
Choose the temperature you are comfortable but keep fan slow. If you don't need heat and need maximum
range, set air direction to defrost only and set fan speed to minimum. reduce temperature setting as low as it goes
without fogging up the windshield. If you need heat, set it to floor as feet freeze first :geek:

So remember, start with cranking up the temperature, if that is not enough, crank fan speed up by one notch.
If it gets near perfect, reduce fan speed 1 notch. If that is bad again, bring it back up and reduce temperature.
Remember perfect fan speed for next trips.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

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