Installing a Tripac APU on Volvo VNL 780

Discussion in 'Volvo Forum' started by bonous, Jun 15, 2015.

  1. Friedline1805

    Friedline1805 Bobtail Member

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    Jul 7, 2018
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    Hey, have a 780 myself with an isx a little heavier than the volvo engine I believe. Have 2 100g tanks set about 20inch in front of the 1/4 fender. Want to put a tripac the same place as you but am concerned about the steer axle weight. Did you buy any chance scale your 780 before and after??
     
  2. bonous

    bonous Light Load Member

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    May 31, 2014
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    No unfortunately I did not. My 2007 has D16 Volvo engine in it and I don’t know how heavy is a Cummins engine but D16 pretty heavy. Even with 45 and 46k I’ve never had any issues. Because is a heavy engine even before I installed the Tripac on it I’ve always kept my 5th wheel in the back.
     
  3. Joeziah

    Joeziah Light Load Member

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    I'm curious, did you install all the interior bits in between the bench seats or did you find a way to put it under the bunk passenger side bunk and integrate it into the existing vents?
     
  4. bonous

    bonous Light Load Member

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    Yes I installed the evaporator and the espar heater under the bunk passenger side. There are several way you can consolidate to save space. I installed them in two deferent ways. When you make your marks for the pass through watch and make sure you’ve clear floor supports, I accidentally cut through one of mine. About the vents, yes I cut a 4in hole on the passenger side of the bunk and installed one duct from the evaporator, and the other duct from the evaporator I tied up with a splitter into the truck sleeper duct.
     
    Joeziah Thanks this.
  5. Joeziah

    Joeziah Light Load Member

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    Can you possibly post a picture? Just asking because the truck I just bought has it installed between the benches and its awful.
     
  6. bonous

    bonous Light Load Member

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    Ok, I'II post picks tomorrow.
     
  7. Joeziah

    Joeziah Light Load Member

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    Actually I went to pick it up and it turns out it was installed correctly under the passenger side bunk. Though they ran the duct work separate from factory auxiliary bunk cooler. Tied 1 into the vents though.

     
    Last edited: Jul 19, 2018
    Reason for edit: added pics
    KB3MMX Thanks this.
  8. HopeOverMope

    HopeOverMope Road Train Member

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    Feb 25, 2016
    I-20 LOUISIANA
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    Apu center in Stratford, mo
     
  9. bonous

    bonous Light Load Member

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    9A4A0DBE-829D-4272-A145-B34693547343.jpeg 76D4B470-DD94-4640-83D7-A12F441B7899.jpeg 55CA6387-9078-4824-A171-EB8A7DB173B3.jpeg AE9B9737-0A5B-45D6-9967-D48C8EB0425A.jpeg
    I was waiting to catch-up with the other truck so I can send you pics of both setup, but yours is set up just like my other truck except I used a splitter to be able to install two vents under the bunk, one on each side of the bunk under the table. And secondly I removed the panel where the installed your sleeper vent and tied into the factory ducting so I’m able to get air at the top bunk. Other than that the evaporator and the other stuff are all like yours. The pics below are the first one I installed on this truck and the placement of the evaporator, heater etc are different.
     
    KB3MMX and Joeziah Thank this.
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