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Type: Posts; User: Daniel Park

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  1. Replies
    31
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    1,860

    My opinion is that high side is blocked with...

    My opinion is that high side is blocked with debris or freezing water inside pipe.
    Watch for suction side pressure at least 30 minutes. If it is going down dramatically under 80 psi and high side...
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    15
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    2,235

    When I evacuate with SMAN3, I always use extra...

    When I evacuate with SMAN3, I always use extra micron guage like yellowjacket micron guage.
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    51
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    2,340

    I'm using SMAN3 it was changed with new one by...

    I'm using SMAN3 it was changed with new one by fieldpiece for free, after it leaked on valve.
    Anyway I recommend SMAN4 if you wanna do wireless total measuring system like gas pressure, pipes temp,...
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    820

    Bulls eye! I got from RSD. It is very small, 3...

    Bulls eye!
    I got from RSD.
    It is very small, 3 kind streams, very strong shot available.


    Sent from my iPad using Tapatalk HD
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    11
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    665

    Actually I have 35 McQuay units have run over 25...

    Actually I have 35 McQuay units have run over 25 years.
    Lots of problems were there, drain, compressor, reversing valve, board, gas leaking, fan motor...etc....
    All most I fixed them. Two units...
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    11
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    665

    Thanks. I didn't know that.

    Thanks. I didn't know that.
  7. Replies
    11
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    665

    Thanks everybody, You guys push me into new...

    Thanks everybody,
    You guys push me into new electronic field!
    Even though I am interested in making inverter with bridge rectifier and capacitor, I don't have enough time.
    As following...
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    11
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    665

    looking for inverter 24v AC to 24v DC

    Recently I worked with McQuay water source HP DC board.
    Since new board is too expensive, I decided using relays for over 30 units repairing.
    There is a problem on heating mode with DC solenoid...
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