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Vision 36 Solar Panel Replacement

Discussion in 'Big Boats' started by Donald6433, May 22, 2017. Add this thread to a FAQ

  1. Donald6433

    Donald6433

    Joined May 25, 2004
    6 posts, 1 likes
    Hunter Vision 36
    US Hidden Harbor, Rio Vista CA Elk Grove, Ca
    Has anyone replaced the solar panel on the Vision 36? The wiring has to be upgraded for the new panel and trying to find where the wire runs, despite looking at the wiring diagram has been a challenge. It appears that the wiring is loose and can be used to pull a heaver gauge wire. Has anyone had any experience with this?
     


  2. Rick D

    Rick D

    Joined Jun 14, 2008
    6,339 posts, 116 likes
    Hunter Legend 40.5
    US Long Beach, Shoreline Marina, CA
    On my 40.5, it goes to the battery switch.
     


  3. Donald6433

    Donald6433

    Joined May 25, 2004
    6 posts, 1 likes
    Hunter Vision 36
    US Hidden Harbor, Rio Vista CA Elk Grove, Ca
    That is not the problem. It having to upgrade from a 14/2 wire to 10/2 gauge and figuring out how the wire is run. The old panel was 10W and the new one is 30W, so the wire has to be upgraded to take the load. So far it appears the wire has been run between the hull and the liner and is hidden.
     


  4. Rick D

    Rick D

    Joined Jun 14, 2008
    6,339 posts, 116 likes
    Hunter Legend 40.5
    US Long Beach, Shoreline Marina, CA
    Ah. Got it. I understand now. Can't help on wiring runs for the V36. You might check with Steve Dion. Check the owner directory. He may have owned your boat. Good luck and post a follow up I had no idea the amps would be that different.
     


  5. LeslieTroyer

    LeslieTroyer

    Joined May 20, 2016
    923 posts, 189 likes
    Catalina 36 MK1
    US Sammamish, WA Everett, WA
    Why the need to upgrade wire size??? 14/2 should handle your 30W or 2.5A without substantial voltage drop and you can typically run 15A (7 times your load) in 14 awg

    Les
     


  6. Donald6433

    Donald6433

    Joined May 25, 2004
    6 posts, 1 likes
    Hunter Vision 36
    US Hidden Harbor, Rio Vista CA Elk Grove, Ca
    Rick and Les
    LOL yea Steve did own it, it was docked next to mine for years when he decided to sell it. She is now the Witch of Endor.
    When the panel were installed when the boat was built, diodes were used to direct current into the battery and they can not handle the output of the new one. The controller that goes with the new panel is specific that 14/2 is not sufficient to handle the load. Lot of changes since 1994. Hopefully the wire is not secured into place and we can just pull the new one. I suspect that I am the first on this model to try this. I appreciate all the input.
    Don
     


    Rick D likes this.
  7. Rick D

    Rick D

    Joined Jun 14, 2008
    6,339 posts, 116 likes
    Hunter Legend 40.5
    US Long Beach, Shoreline Marina, CA
    Well, Donald, you have a great boat there...
     


  8. jssailem

    jssailem

    Joined Oct 22, 2014
    3,347 posts, 642 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    Don, no knowledge of your boat. I did read recently of an owner using coated lifeline to fish wires through a tight space. The lifeline wire is stiff, and the coating helps to let it slide. Would think it might be useful in the space between the liner and the hull. Once thru you could attach your new 10/2 wire and use the fish as a messenger line.
     


  9. Donald6433

    Donald6433

    Joined May 25, 2004
    6 posts, 1 likes
    Hunter Vision 36
    US Hidden Harbor, Rio Vista CA Elk Grove, Ca
    Thanks for the idea John. First week of June we will be working on it.
     


  10. jssailem

    jssailem

    Joined Oct 22, 2014
    3,347 posts, 642 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    Best of luck Don... Remember.... If first you don't succeed Sit down have a beer and try again... About the 5th time you won't care and likely just wait for another day... or until you run out of beer.. Oh no.:yikes:
     


  11. Donald6433

    Donald6433

    Joined May 25, 2004
    6 posts, 1 likes
    Hunter Vision 36
    US Hidden Harbor, Rio Vista CA Elk Grove, Ca
    Well it turns out that the replacement panel sold here will not work.The boat was wired for a 10W panel and the one sold at this site is a 30W requiring an upgrade of wire from a 14/2 to a 10/2. After several hours with the electrician exploring how the boat was wired, we came to the unfortunate conclusion that the only way to run the needed upgraded wire was to cut the boat apart. So looks like I will be looking for a 10W panel that the existing wiring can handle.
     


  12. LeslieTroyer

    LeslieTroyer

    Joined May 20, 2016
    923 posts, 189 likes
    Catalina 36 MK1
    US Sammamish, WA Everett, WA
    30 watts is under 3 amps @ 12v (30/12 ). 14 awg is more than big enough. I think you are confusing watts for amps.
    Les
     


  13. heritage

    heritage

    Joined Apr 22, 2011
    387 posts, 36 likes
    Hunter 27
    US Jacksonville
    Unless your one-way wire run is well over 20', 14 gauge wire can handle the 30watts with less than a 2% voltage drop. And if you can accept a 4% voltage drop, you can go twice that distance. I can see where the controller instructions might say that 10 gauge is necessary, because the controller is probably designed for panels of higher wattage.
     


  14. jssailem

    jssailem

    Joined Oct 22, 2014
    3,347 posts, 642 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    Don. It seems unbelievable that you cannot run the wire you need with out "cutting the boat apart". All of these boat projects are about solving problems. Why not take some pictures of the problem areas and get some ideas from the problem solvers here on the forum.
    Les is questioning the electrical demand. He has talent with electrical issues.
    Take a picture or two and post them.
     


  15. Jrtauber

    Jrtauber

    Joined Apr 16, 2017
    8 posts, 0 likes
    Hunter 37.5
    US New York East Hampton, NY
    The diodes are built into most panels so the old ones are of no consequence. The 10 watt panel did not require a voltage controller and the 30 watt will. My Legend 37.5 has two fuses at the battery switch panel for the solar panel so that each battery bank has a separate fuse. A 30 watt panel puts out 17 volts so that the max output is less than 2 amps well within the range of a 15 length of 14 gauge.
     


  16. Jrtauber

    Jrtauber

    Joined Apr 16, 2017
    8 posts, 0 likes
    Hunter 37.5
    US New York East Hampton, NY
    Here are typical specs for a 30 watt panel.
    • ALEKO┬« 30 Watt Monocrystalline Solar Panel - Nominal Output Voltage 12V
    • Operating Voltage (Vmp): 17.5V
    • Operating Current (Imp): 1.71A
    • Open Circuit Voltage (Voc): 22.0V


     



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