• How auto AC works,

    From micky@NONONOmisc07@fmguy.com to alt.home.repair,rec.autos.tech on Wed Jan 24 05:49:23 2024
    From Newsgroup: rec.autos.tech

    My rental, a Toyota Yaris, has a simple heater/AC and sometimes, with
    the fan on 1, the lowest speed other than "stop", and the temp on
    coldest, it's too cold.

    The solution seems to be to move the temp towards warm, but when I do
    that, am I not using gasoline to run the AC and then mixing warm air
    with the cold air, that I just paid to create? If saving money were my
    only consideration, shouldn't I keep the AC all the way on cold, but
    turn it on and off, like a furnace or AC unit at home works? (Yes, of
    course the car is much smaller than the house and so I'd alternate
    between being too hot and being too cold, but this is an academic
    question.)

    What about my own car, that has an automatic setting which it says will
    keep the temp at whatever temp I set it to? 70, 68, 72, whatever. Does
    this work differently from the simple AC in the paragraph above? Doesn't
    it also mix warm air heated by engine coolant with cold air cooled by
    the AC, using extra gasoline?

    Isn't the only way to save money to set the AC all the way to the
    coldest, and turn it off if it gets too cold?


    BTW, when I was here 53 years ago, I dont' remember there ever being a
    hot day. I was on foot, carrying a rucksack**, hitchhiking or walking
    around town.

    **A strange backpack with a metal frame but one unlike any other one
    I've seen before or since. The frame was not two parallel sides, but
    sort of a figure 8 (but not that narrow in the middle. I might still
    have it in the basement, but the cloth is probably no good anymore.
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  • From Cindy Hamilton@hamilton@invalid.com to alt.home.repair,rec.autos.tech on Wed Jan 24 14:26:26 2024
    From Newsgroup: rec.autos.tech

    On 2024-01-24, micky <NONONOmisc07@fmguy.com> wrote:
    My rental, a Toyota Yaris, has a simple heater/AC and sometimes, with
    the fan on 1, the lowest speed other than "stop", and the temp on
    coldest, it's too cold.

    The solution seems to be to move the temp towards warm, but when I do
    that, am I not using gasoline to run the AC and then mixing warm air
    with the cold air, that I just paid to create? If saving money were my
    only consideration, shouldn't I keep the AC all the way on cold, but
    turn it on and off, like a furnace or AC unit at home works? (Yes, of
    course the car is much smaller than the house and so I'd alternate
    between being too hot and being too cold, but this is an academic
    question.)

    What about my own car, that has an automatic setting which it says will
    keep the temp at whatever temp I set it to? 70, 68, 72, whatever. Does
    this work differently from the simple AC in the paragraph above? Doesn't
    it also mix warm air heated by engine coolant with cold air cooled by
    the AC, using extra gasoline?

    Isn't the only way to save money to set the AC all the way to the
    coldest, and turn it off if it gets too cold?

    If you're that worried about spending money, perhaps you should
    stay home.
    --
    Cindy Hamilton
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Mark Lloyd@not.email@all.invalid to alt.home.repair,rec.autos.tech on Wed Jan 24 17:14:01 2024
    From Newsgroup: rec.autos.tech

    On 1/24/24 04:49, micky wrote:
    My rental, a Toyota Yaris, has a simple heater/AC and sometimes, with
    the fan on 1, the lowest speed other than "stop", and the temp on
    coldest, it's too cold.

    The solution seems to be to move the temp towards warm, but when I do
    that, am I not using gasoline to run the AC and then mixing warm air
    with the cold air, that I just paid to create?

    IIRC, on mine the temp control varies the compressor duty cycle.

    [snip]
    --
    Mark Lloyd
    http://notstupid.us/

    "Gun control is HITTING what you aim at."

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Bob F@bobnospam@gmail.com to alt.home.repair,rec.autos.tech on Wed Jan 24 19:56:24 2024
    From Newsgroup: rec.autos.tech

    On 1/24/2024 2:49 AM, micky wrote:
    My rental, a Toyota Yaris, has a simple heater/AC and sometimes, with
    the fan on 1, the lowest speed other than "stop", and the temp on
    coldest, it's too cold.

    The solution seems to be to move the temp towards warm, but when I do
    that, am I not using gasoline to run the AC and then mixing warm air
    with the cold air, that I just paid to create? If saving money were my
    only consideration, shouldn't I keep the AC all the way on cold, but
    turn it on and off, like a furnace or AC unit at home works? (Yes, of
    course the car is much smaller than the house and so I'd alternate
    between being too hot and being too cold, but this is an academic
    question.)

    What about my own car, that has an automatic setting which it says will
    keep the temp at whatever temp I set it to? 70, 68, 72, whatever. Does
    this work differently from the simple AC in the paragraph above? Doesn't
    it also mix warm air heated by engine coolant with cold air cooled by
    the AC, using extra gasoline?

    Isn't the only way to save money to set the AC all the way to the
    coldest, and turn it off if it gets too cold?


    BTW, when I was here 53 years ago, I dont' remember there ever being a
    hot day. I was on foot, carrying a rucksack**, hitchhiking or walking
    around town.

    **A strange backpack with a metal frame but one unlike any other one
    I've seen before or since. The frame was not two parallel sides, but
    sort of a figure 8 (but not that narrow in the middle. I might still
    have it in the basement, but the cloth is probably no good anymore.

    You can change the setting, then watch the A/C compressor clutch cycle
    on/off at different rates, I bet.
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From micky@NONONOmisc07@fmguy.com to alt.home.repair,rec.autos.tech on Wed Jan 24 22:51:42 2024
    From Newsgroup: rec.autos.tech

    In alt.home.repair, on Wed, 24 Jan 2024 17:14:01 -0600, Mark Lloyd <not.email@all.invalid> wrote:

    On 1/24/24 04:49, micky wrote:
    My rental, a Toyota Yaris, has a simple heater/AC and sometimes, with
    the fan on 1, the lowest speed other than "stop", and the temp on
    coldest, it's too cold.

    The solution seems to be to move the temp towards warm, but when I do
    that, am I not using gasoline to run the AC and then mixing warm air
    with the cold air, that I just paid to create?

    IIRC, on mine the temp control varies the compressor duty cycle.

    That would be good. That would be just fine.

    Now I remember what I'm supposed to look for in the owners manaul. 690
    pages... maybe tomorrow.

    [snip]
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