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  1. #14
    Join Date
    Jan 2010
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    Quote Originally Posted by HVAC_Marc View Post
    they should be closed. DO NOT BYPASS SWITCHES. Even a momentary "test" could cause a catastrophic failure.
    Oh my
    Attached Images Attached Images  

  2. Likes HVAC_Marc, GoCougs liked this post
  3. #15
    Join Date
    Nov 2016
    Posts
    23
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    Thread Starter
    First chance to do any testing. well, here it is;

    2.0 ton ICP (carrier) heat pump R-410
    No condenser start (very slight humn when attempting to start)
    Condenser fan runs
    Has hard start connected to unit.
    New and checked dual cap installed.

    ***************

    Condenser voltage to contactor coil.............................................2 6v
    (is pulled in in cool mode).

    Voltage from disconnect to contactor....................................26v

    Voltage to load side of contactor...............................220vac

    *********************

    Voltage measured on defrost board

    Between R & C ...................... 26volts
    Between Y & C....................... 26volts

    *********************

    Data Plate stock Amps

    12.8 amps RUN
    58.3 amps LRA

    **********************

    Compressor wire test to ground for
    shorts;
    Run (yellow) to ground..............ok, not shorted
    Start (Blue) to ground...............ok, not shorted
    Black (common) to ground.........ok, not shorted

    ************************


    Current draw on start up;

    Unit in “cool” mode, Amprobe clamp on BLUE “START" wire = 57 amps (as fast as I could read it)

    ************************

    Resistance measurements;

    Black COMMON to YELLOW RUN = 3.1 ---> 3.2 ohms

    Black COMMON to BLUE START = 3.2 --> 3.2 ohms

    YELLOW RUN to BLUE START = 3.6 ohms

    The resistance measurements don't make sense. Sounds like compressor took a dump?

  4. #16
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    18,052
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    Looks like it
    This forum requires that you wait 20 seconds between posts. Please try again in 50 seconds.

    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"

    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

  5. #17
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    14,484
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    Quote Originally Posted by singlephaser View Post
    First chance to do any testing. well, here it is;

    2.0 ton ICP (carrier) heat pump R-410
    No condenser start (very slight humn when attempting to start)
    Condenser fan runs
    Has hard start connected to unit.
    New and checked dual cap installed.

    ***************

    Condenser voltage to contactor coil.............................................2 6v
    (is pulled in in cool mode).

    Voltage from disconnect to contactor....................................26v

    Voltage to load side of contactor...............................220vac

    *********************

    Voltage measured on defrost board

    Between R & C ...................... 26volts
    Between Y & C....................... 26volts

    *********************

    Data Plate stock Amps

    12.8 amps RUN
    58.3 amps LRA

    **********************

    Compressor wire test to ground for
    shorts;
    Run (yellow) to ground..............ok, not shorted
    Start (Blue) to ground...............ok, not shorted
    Black (common) to ground.........ok, not shorted

    ************************


    Current draw on start up;

    Unit in “cool” mode, Amprobe clamp on BLUE “START" wire = 57 amps (as fast as I could read it)

    ************************

    Resistance measurements;

    Black COMMON to YELLOW RUN = 3.1 ---> 3.2 ohms

    Black COMMON to BLUE START = 3.2 --> 3.2 ohms

    YELLOW RUN to BLUE START = 3.6 ohms

    The resistance measurements don't make sense. Sounds like compressor took a dump?
    What does this mean?

  6. #18
    Join Date
    Jan 2010
    Posts
    13,240
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    Time for a new condenser.

  7. #19
    Join Date
    Nov 2016
    Posts
    23
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    Thread Starter
    Quote Originally Posted by HVAC_Marc View Post
    Looks like it
    *************

    yeah, same idea I got...dammit!

  8. #20
    Join Date
    Nov 2016
    Posts
    23
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    Thread Starter
    OK,
    Will remove and re-install replacement compressor sometime this coming week. However, have a question or two about using stasilv #5(??). Would this be a question I should ask here or, someplace else?

  9. #21
    Join Date
    Jan 2010
    Posts
    13,240
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    Dynaflow will work just fine.

  10. #22
    Join Date
    Nov 2016
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    23
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    Thread Starter
    I did some more searching and found a pdf doc from the manufacturer and determined that what the guy at the parts house was going to try and sell me (stasilv #5) was not what I wanted.

    Found that what he wanted to sell me melted at over 1300* and I would have to flow nitrogen - not an option here.

    Will have to bite the bullet and do Stay-Brite-8, as it melts below 500* so I won't have to flow anything except a beer or two.

  11. #23
    Join Date
    Jan 2010
    Posts
    13,240
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    So you won't be pressure testing ?

  12. #24
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    14,484
    Post Likes
    Quote Originally Posted by singlephaser View Post
    I did some more searching and found a pdf doc from the manufacturer and determined that what the guy at the parts house was going to try and sell me (stasilv #5) was not what I wanted.

    Found that what he wanted to sell me melted at over 1300* and I would have to flow nitrogen - not an option here.

    Will have to bite the bullet and do Stay-Brite-8, as it melts below 500* so I won't have to flow anything except a beer or two.
    How can that not be an option? Its SOP.

    I like Stay Brite #8 but not on 410A and discharge lines.

  13. #25
    Join Date
    Nov 2016
    Posts
    23
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    Thread Starter
    Quote Originally Posted by VTP99 View Post
    So you won't be pressure testing ?
    ****************

    Yes, I will. I simply don't like the idea of weakening the copper during the install.

  14. #26
    Join Date
    Nov 2016
    Posts
    23
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    Thread Starter
    Quote Originally Posted by pecmsg View Post
    How can that not be an option? Its SOP.

    I like Stay Brite #8 but not on 410A and discharge lines.
    ****************

    SOP for you maybe. I feel comfortable with "8" and shows because of the substantial decrease in the heat during the install will not weaken the copper due to heat application and stronger than braze.....To each his own.

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