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HPWC outdoor install?

Discussion in 'Model S: Battery & Charging' started by Cheerose, Mar 4, 2013.

  1. Cheerose

    Cheerose Member

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    For me, it would make a bit more sense (at least in theory) to have a HPWC outside. Is that possible/are they weatherproof?
     
  2. Arnold Panz

    Arnold Panz Model Sig 304, VIN 542

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    I was told absolutely yes -- it can withstand a hurricane. You'll want to make sure you have a good electrician do the install, because the sturdiness is only as good as the installation. The cord is unbelievably thick and can probably handle any sort of weather.
     
  3. Al Sherman

    Al Sherman It's about THIS car.

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    Maybe mount it so it can be covered with just the wire sticking out the bottom of the cover? Possibly someone on here has done this already. Or plans to.
     
  4. artsci

    artsci Sponsor

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    I checked months ago with Tesla. It can be installed outdoors. But as Al Sherman suggested, I'd make a cover for it to shield it from rain.
     
  5. brianman

    brianman Burrito Founder

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    Nobody had one installed when Sandy hit, AFAIK. Would have been a great test...
     
  6. gardnerep

    gardnerep Member

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    Anyone have picturs of an outdoor installation? I would definetly would want to put the HPWC in an enlosure to protect it from the elements.
     
  7. scaesare

    scaesare Active Member

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    The unit body is made of similar plastic (ABS) to that of which weatherproof electrical boxes are made of, and is also covered by a rubber material layer. In addition the cover is gasketed to prevent water intrusion, again as outdoor electrical enclosures are. Finally, the cable fitting appears to be of the water-tight variety.

    Hmm... after writing all of that, I decided to go look at my manual... sure enough it's rated as a NEMA Type 3R enclosure, which is rated for indoor or outdoor use.

    The primary installation concern would most likely be ensuring a weather-resistant connection to your source electrical circuit. You have to drill a hole for a 1" conduit connector. You would want to select and install an appropriate rated connector there to ensure the integrity of the enclosure.
     
  8. TheAustin

    TheAustin Model S: P2009 P85

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    I've had my HPWC installed outside for almost a year, and it's been totally fine...I didn't have any other place to put it (no garage) so it had to go on the side of our work studio, so I checked extensively with Tesla and many people at Tesla assured me that it could be installed outside. And I don't have any kind of shelter/protection around it, it's fully exposed to the elements. Go for it, you should be fine.
     
  9. scott2613

    scott2613 Member

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    Here is one along with a CS-100 that's been outside since August. They've been through lot's of rain and a snowstorm and haven't had any problems yet.
    2 Charging stations.jpg
     
  10. Jwarrenphd

    Jwarrenphd Member

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    I've installed one outside my office. The electricians said perfectly okay.
     

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  11. Cottonwood

    Cottonwood Roadster#433, Model S#S37

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    Here is a picture of the HPWC's on pedestals at the San Diego Service Center:

    San Diego HPWCs.JPG
     
  12. invisik

    invisik Member

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    Ahh found a pic of the Nashville, TN Service Center one WP_20140801_003.jpg
     
  13. bhzmark

    bhzmark Active Member

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    Anyone have suggestions, links, part numbers for appropriate metal (or perhaps wood) mounts for outdoor installs of the HPWC?
     
  14. mrElbe

    mrElbe Member

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    #14 mrElbe, Nov 9, 2014
    Last edited: Nov 9, 2014
    Here is my install beside the driveway awaiting arrival of car in "Late December". Just a pressure treated 4x4 post with an attached 2x4 to make a 4x6 to accommodate the HPWC width. Solar LED on top for decoration.
     

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  15. ArtInCT

    ArtInCT Always Learning

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    The Milford, CT Tesla Service Center has two of them mounted outdoors with electrical conduit plumbing.
    I did inquire about this and the service manager stated that the HPWC is rated for outdoor duty.
     
  16. TES-E

    TES-E Member

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    Mine is outside... no problem.
     
  17. hingisfan

    hingisfan hingisfan_Mark_V

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    Are you guys burying the wire from the post to the panel? Is it as simple as cutting a hole and running the wire? Is there a minimum depth?
     
  18. mrElbe

    mrElbe Member

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    Minimum depth is as per local electrical code. My wire is in 1 1/4" conduit ( 1" would have done) buried 2 feet. I already had 100A service in the garage. I also installed a digital meter in the line so I know how many KWh I use for charging from the HPWC without depending on the car readout.
     
  19. scottm

    scottm Active Member

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    our code is this yours is probably similar:

    use a proper rated cable or conduit for underground
    bury 18" min, so go 24" depth, unless you're crossing a roadway, then bury 5 feet
    cover the cable in trench with sand minimum 6" around all sides
    if you're trenching along with other services put a 2x6 pressure treated plank between the services
     
  20. Cottonwood

    Cottonwood Roadster#433, Model S#S37

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    Separation from medium Voltage distribution lines is 2 feet in my area, but that is usually not a problem because those have to be at least 4 feet underground. Always do a utility locate (usually free), and when backfilling, put some construction plastic, yellow, warning tape 6-12 inches above your conduit to make it easier for future generations to miss. Utility locates will not always find private runs.

    Because most of the cost is in the trenching, I always use conduit, and go up a size or two from the minimum. The larger conduit will make for easier pulls and will allow for future upgrades. For example, the HPWC has a knockout for 1" conduit. Do most of the run in 1.5" conduit and neck down to 1" in a junction box near the HPWC. It seems obvious, but make sure the bends are done with sweeps and not elbows. I once had a contractor (not an electrical contractor) put in elbows. He paid for the retrofit to sweeps, but it made for an extra delay, and more muddy holes.
     

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