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Who has bypassed carrier apu AC unit?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by TruckerPete1990, Jun 5, 2023.

  1. Jun 5, 2023 #1
    TruckerPete1990

    TruckerPete1990 Road Train Member

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    Long story short carrier apu AC sucks! It hardly cools the truck on a hot day.. I'm wanting to remove the under the bunk AC unit and have a mini split installed. Has anyone done this? I'm wanting to use the outside generator to power the unit.
     
    TruckerPete1990, Jun 5, 2023
    TruckerPete1990, Jun 5, 2023
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  3. Jun 5, 2023 #2
    Movingismylifeilovemoving

    Movingismylifeilovemoving Light Load Member

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    Probably could find a dc mini split and go with a decent size lifepo4 battery bank.

    Batteries have gotten so cheap, it's not too expensive to do.

    Add a panel and dcdc charger and I bet it work great
     
    Movingismylifeilovemoving, Jun 5, 2023
    Movingismylifeilovemoving, Jun 5, 2023
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  4. Jun 5, 2023 #3
    Movingismylifeilovemoving

    Movingismylifeilovemoving Light Load Member

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    I've thought about just dropping 4 100ah lifepo4 batteries in the apu box and replacing the compressor with a dc one.

    They are out there and available.
     
    Movingismylifeilovemoving, Jun 5, 2023
    Movingismylifeilovemoving, Jun 5, 2023
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  5. Jun 5, 2023 #4
    JB7

    JB7 Medium Load Member

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    Has anyone hooked up a set of gauges to check the pressures to see if the system is operating like it should and has the correct amount of refrigerant?
     
    JB7, Jun 5, 2023
    JB7, Jun 5, 2023
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    tscottme Thanks this.
  7. Jun 5, 2023 #5
    TruckerPete1990

    TruckerPete1990 Road Train Member

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    Yeah everything is showing good on gauges. It's been a problem since I had this unit installed. Part of problem is how it taps into the factory vents its a huge bottle neck.
     
    TruckerPete1990, Jun 5, 2023
    TruckerPete1990, Jun 5, 2023
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    bzinger and tscottme Thank this.
  8. Jun 5, 2023 #6
    TruckerPete1990

    TruckerPete1990 Road Train Member

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    I'm wanting to keep my generator part as its not even 10k hours yet. Would love to get rid of that box under the bed though and get that space back for tools lol
     
    TruckerPete1990, Jun 5, 2023
    TruckerPete1990, Jun 5, 2023
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    Siinman Thanks this.
  9. Jun 5, 2023 #7
    Siinman

    Siinman Road Train Member

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    I belive @RedForeman has one of those installed but not with APU.
     
    Siinman, Jun 5, 2023
    Siinman, Jun 5, 2023
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  10. Jun 5, 2023 #8
    bzinger

    bzinger Road Train Member

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    Keep your checkbook handy, the generator on a carrier apu usually fails at about 15000 hours and it isn't cheap.
     
    bzinger, Jun 5, 2023
    bzinger, Jun 5, 2023
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    Siinman Thanks this.
  11. Jun 5, 2023 #9
    TruckerPete1990

    TruckerPete1990 Road Train Member

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    My last one lasted till 26k hours then got rid of it that's when generator took a dump. Still cheaper then replacing parts on the engine due to idle time lol. Last time I priced one it was $2,000
     
    TruckerPete1990, Jun 5, 2023
    TruckerPete1990, Jun 5, 2023
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