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Better AC for cabover

Discussion in 'Ask An Owner Operator' started by 87362peterbilt, May 5, 2025 at 12:59 PM.

  1. May 5, 2025 at 12:59 PM #1
    87362peterbilt

    87362peterbilt Bobtail Member

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    I have a 1987 362 cabover peterbilt, AC does blow cold but it's not enough and everything runs as it should. I'm going to install better insulation soon, but man that thing gets hot! I'm thinking about doing a rooftop AC unit that i can run all day, but I don't know how well they do. I'll run a genset. Anyone ever do this? What brands to go with or stay away from? Any recommendations or any ideas for better AC? Thanks.
     
    87362peterbilt, May 5, 2025 at 12:59 PM
    87362peterbilt, May 5, 2025 at 12:59 PM
    #1
    D.Tibbitt Thanks this.
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  3. May 5, 2025 at 1:13 PM #2
    OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Red Dot been around a long time, might look into some of their products….
     
    OLDSKOOLERnWV, May 5, 2025 at 1:13 PM
    OLDSKOOLERnWV, May 5, 2025 at 1:13 PM
    #2
    87362peterbilt Thanks this.
  4. May 5, 2025 at 1:17 PM #3
    87362peterbilt

    87362peterbilt Bobtail Member

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    I've run trash trucks with Red dots stuff, they did great. But I don't know if they'd hold up to over the road. I know RV roof top AC units aren't really built for the long miles we run.
     
    87362peterbilt, May 5, 2025 at 1:17 PM
    87362peterbilt, May 5, 2025 at 1:17 PM
    #3
    OLDSKOOLERnWV Thanks this.
  5. May 5, 2025 at 1:56 PM #4
    OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

    17,852
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    West Virginia
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    Use to be many red dots on the cab of trucks, I’d say it would work fine. Guy up in Ohio has a newer red dot on the cab of his Peterbilt and says it works good…
     
    OLDSKOOLERnWV, May 5, 2025 at 1:56 PM
    OLDSKOOLERnWV, May 5, 2025 at 1:56 PM
    #4
  7. May 5, 2025 at 5:59 PM #5
    North Pole Nightmare

    North Pole Nightmare Heavy Load Member

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    Keep your radiator clean,wash it out once a month or so to clean out the bugs and stuff so the engine runs as cool as possible,might help a little.
     
    North Pole Nightmare, May 5, 2025 at 5:59 PM
    North Pole Nightmare, May 5, 2025 at 5:59 PM
    #5
  8. May 5, 2025 at 6:04 PM #6
    Ridgeline

    Ridgeline Road Train Member

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    You have a lot of heat soaking going on, insulate the floor.
     
    Ridgeline, May 5, 2025 at 6:04 PM
    Ridgeline, May 5, 2025 at 6:04 PM
    #6
    blairandgretchen, DannyB, AModelCat and 1 other person Thank this.
  9. May 5, 2025 at 8:43 PM #7
    blairandgretchen

    blairandgretchen Road Train Member

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    South west Missouri
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    That would be a good start.
     
    blairandgretchen, May 5, 2025 at 8:43 PM
    blairandgretchen, May 5, 2025 at 8:43 PM
    #7
  10. May 5, 2025 at 9:20 PM #8
    wore out

    wore out Numbered Classic

    15,407
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    CHASIN THE DEVIL'S HERD
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    Cabovers were never known to frost your balls. The York compressor just doesn’t take to the 134a like the sanden. Most likely you have years of build up inside the evaporator core.

    I agree red dot has been making A/C stuff for trucks for years
     
    wore out, May 5, 2025 at 9:20 PM
    wore out, May 5, 2025 at 9:20 PM
    #8
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