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  1. #1
    cabe's Avatar
    cabe Guest

    Powering a 1/3HP Compressor



    I have a 1/3HP compressor pulled out of an old '70s refrigerator. So far I've done some research and found that I may need a 12v power supply that will provide 30amps to the compressor while its starting? Or maybe that i could use 24v and 15a? I've been looking everywhere, but noone really has much on actually powering a vapor phase refrigeration unit.

    The compressor says:

    WR7X
    138
    1/3HP
    3ARR20
    A300

    on the electrical connection on the side.

    Thanks, any help is GREATLY appritiated!



  2. #2
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    Sounds like something that would be powered off a car battery. Maybe a motorhome refrigerator?

  3. #3
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    I have seen a few refrig 12 Volt supplied or dual voltage 120VAC or 12VDC through the adapting power supply. Never did see one 24VDC. I don't know where a 24VDC refrig would be used. Certainly not in a boat or motorhome, these would be 12VDC. Unless of course it is some special application.

  4. #4
    cabe's Avatar
    cabe Guest
    Originally posted by Gary
    Sounds like something that would be powered off a car battery. Maybe a motorhome refrigerator?
    hi gary, you get around to a lot of the phase-change related forums huh.

  5. #5
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    Hi Cabe,

    I'm getting ready to retire, and will be depending on book sales for my income, so yes, you will see me all over the internet.

  6. #6
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    24vdc Supply

    I dont know about over the other side of the pond, but in europe most Heavy goods vehicles & coaches have outputs giving out 24vdc & 12vdc. Usually these come through cigarette lighter sockets so dony know if these would be man enough to draw 15amps, but i do know you can buy in this country 24Vdc fridges for inside the cabs.

  7. #7
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    Originally posted by Robearbam
    I have seen a few refrig 12 Volt supplied or dual voltage 120VAC or 12VDC through the adapting power supply. Never did see one 24VDC. I don't know where a 24VDC refrig would be used. Certainly not in a boat or motorhome, these would be 12VDC. Unless of course it is some special application.
    Please note there are 12 volt and 24 volt compressors made today by Danfoss also varaible speed. If
    you need info please reply and I will send.

    Wes Maxfield CM
    Wes Maxfield

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