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  1. #14
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    Dec 2011
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    Here is a link to the video that explains it better then I could.
    http://www.youtube.com/watch?v=hapg3...feature=fvwrel

  2. #15
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    Nov 2001
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    east kansas
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    I think Carrier used a simular compressor in their 5 ton HPs.

    And I thought, but might be wrong, that Goodman used some in their larger HPs. I can't find any supporting information on the Goodman. I did see some stuff on the Carrier Gemini (?).

    Here is a link.

    http://www.emersonclimate.com/en-US/...rotection.aspx

    Look for a lable on the compressor.
    Beware of advice given by some guy on the Internet.

  3. #16
    jpsmith1cm's Avatar
    jpsmith1cm is offline Global Moderator/AOP Committee
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    Quote Originally Posted by starwatcher

    The pressure is being taken at the shrader valves using the service ports.
    Hmmm.


    Methinks I've discovered something...

  4. #17
    Join Date
    Dec 2011
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    Quote Originally Posted by Milk man View Post
    I think Carrier used a simular compressor in their 5 ton HPs.

    And I thought, but might be wrong, that Goodman used some in their larger HPs. I can't find any supporting information on the Goodman. I did see some stuff on the Carrier Gemini (?).

    Here is a link.

    http://www.emersonclimate.com/en-US/...rotection.aspx

    Look for a lable on the compressor.
    Milk man
    Sounds like a posibility but this happens in no logical order. The thing could be off for days and demand be in this no pressure mode, then is a short sometimes long time it run great. The compressor is down in the unit so right now looking for the label is a no go but I did have the old compressor sitting in the garage. Label on it was ZPS51K4E-PFV-230-ZSM

  5. #18
    Join Date
    Jan 2004
    Location
    Lancaster PA
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    Quote Originally Posted by jpsmith1cm View Post
    Hmmm.


    Methinks I've discovered something...
    LOL... I'd be concerned if they weren't the same pressures in heat mode.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  6. #19
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    Dec 2011
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    Quote Originally Posted by jpsmith1cm View Post
    Hmmm.


    Methinks I've discovered something...
    I am all Ears!!!!

  7. #20
    jpsmith1cm's Avatar
    jpsmith1cm is offline Global Moderator/AOP Committee
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    When you said "service ports" do you mean the external ports on the unit?

    If so, then they should be within a few PSI of one another during heating operation.

    Maybe a wee bit higher on the larger line.

  8. #21
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    Dec 2011
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    Quote Originally Posted by jpsmith1cm View Post
    When you said "service ports" do you mean the external ports on the unit?

    If so, then they should be within a few PSI of one another during heating operation.

    Maybe a wee bit higher on the larger line.
    Service ports are outside the unit at the service valves.

  9. #22
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    Jan 2004
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    You don't check operation in heat mode at both of the service valves. Neither of them are the suction/vapor port.
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    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  10. #23
    jpsmith1cm's Avatar
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    Quote Originally Posted by beenthere View Post
    You don't check operation in heat mode at both of the service valves. Neither of them are the suction/vapor port.


    Quote Originally Posted by starwatcher View Post
    Service ports are outside the unit at the service valves.

  11. #24
    jpsmith1cm's Avatar
    jpsmith1cm is offline Global Moderator/AOP Committee
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    starwatcher.

    You need a contractor or a tech who is well versed in Heat Pump service.

    From the sounds of things, the techs you have are not.


    I'm no heat pump guru, but I figured this out pretty quickly.

    Try our contractor locator map.

  12. #25
    Join Date
    Dec 2011
    Posts
    18
    Leaving pressure gauges out of the picture, the unit in heating mode does not make the suction line hot! Sound of the compressor is harsh, sometimes it will stay that way for 5, 10, 15 mins before compressor smooth out to quite normal sound, suction line is now hot. the same process can be seen in cooling mode or defrost, if the compressor goes into the "quite" stage the deforst will produce steam, if it stays in the noisy mode no steam and no defrost.

  13. #26
    jpsmith1cm's Avatar
    jpsmith1cm is offline Global Moderator/AOP Committee
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    I will stand by my last post.

    The tech needs to sit there until the unit does it, then take the time to determine WHY it is happening.

    Sadly, I cannot do so from where I am sitting.

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