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What is the purpose of having BOTH a bunk heater and an APU?

Discussion in 'Questions From New Drivers' started by BeHereNow97, Aug 30, 2021.

Page 3 of 3
  1. Sep 2, 2021 #21
    flood

    flood Road Train Member

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    Dec 25, 2010
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    Well someone been drinking the apu dealer cool aid.....

    Because your not even close on your numbers
     
    flood, Sep 2, 2021
    flood, Sep 2, 2021
    #21
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  3. Sep 2, 2021 #22
    skallagrime

    skallagrime Road Train Member

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    Apr 10, 2012
    Indiana
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    Close but Not quite

    Apu houses an alternator and ac compressor, it is cooled with a loop of truck coolant

    Bunk heater is usually a tiny diesel fired electrically dependent heater.

    So the bunk heat power source is batteries, charged either by truck or apu

    That is the tri pack setup
     
    skallagrime, Sep 2, 2021
    skallagrime, Sep 2, 2021
    #22
    Trucker61016, beastr123 and BeHereNow97 Thank this.
  4. Sep 2, 2021 #23
    BeHereNow97

    BeHereNow97 Road Train Member

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    I think I got it you explained it well.

    So the APU is intertwined through the AC via alternator, ac compressor, a loop of truck coolant and a power source for the AC.

    The APU is not very intertwined with the bunk heater as it only acts as a power source for the bunk heater (which can also be charged by running the truck to keep the batteries from dying).

    Do I have it right now?
     
    BeHereNow97, Sep 2, 2021
    BeHereNow97, Sep 2, 2021
    #23
  5. Sep 2, 2021 #24
    skallagrime

    skallagrime Road Train Member

    3,853
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    Apr 10, 2012
    Indiana
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    I dont know that you should go installing them now, but close enough
     
    skallagrime, Sep 2, 2021
    skallagrime, Sep 2, 2021
    #24
    BeHereNow97 Thanks this.
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