Quote:
Originally Posted by Drifter
So an hour of so of googling comes up with conflicting answers. The SAE says to keep the temperature low and slow the fan speed as necessary:
https://www.sae.org/standardsdev/tsb.../mobile_ac.pdf
But further research indicates it is more complicated:
https://www.popularmechanics.com/car...12178/4281039/
I know my older Toyotas with rotary dial temperature controls would cycle the compressor on & off (you could feel & hear the compressor cycling on - especially idling at a stop light). So that's why I always ran the fan on high (to maximize "wind chill" while minimizing compressor run time).
I don't feel my prius cycle the compressor, but it runs on electricity rather than off the engine. I think it uses a variable compressor, but maybe it blends with heater instead? I'd think they would go for maximum efficiency though and avoid that waste. I'd assume your ionic does likewise?
Edit: You are right! The Prius does have a variable speed compressor, BUT even with that Toyota still uses an "air mix damper servo" to run some of air conditioned air through the heater to achieve the desired temperature. Crazy!
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Yeah I guess my Ioniq is the same as prius. Ac runs off the giant hybrid battery. So I just keep it at a low fan speed with good insulation at the lowest temp so it doesn’t have to reheat the air. What I love about the Ioniq ac being connected to the battery versus my old 2014 Elantra I used to have, is the battery powered ac is instant. I remember the old days of having to drive the car for a few minutes while the ac blew hot air. Now it’s just instant ice cold air. Which is nice with a black car