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  1. #1
    Join Date
    Nov 2019
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    Wyoming
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    compressor shopping

    On the Goodman condenser units GSX130301A , are the compressors part specific or can I use a lower or higher btu rated size for example all I can find to replace a GSX130301A compressor is ZP29K5EPFV830 Copeland scroll and not a ZP30" "? Yes, I can order one through my supplier but I want to get one through HD Supply since I have an account with them but they are limited in there selection.

  2. #2
    Join Date
    Oct 2016
    Location
    Clearwater, Florida
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    Most compressors are designed for a specific application, BTU rating and volumetric flow as well as power and type of oil and refrigerant.

    You can't just get any "2 Ton Compressor, it won't work.

    Is a service tech involved?

  3. #3
    Join Date
    Aug 2002
    Location
    Southold, NY
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    A replacement is available. You're wholesaler will know the new model #!

  4. #4
    Join Date
    Nov 2019
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    Wyoming
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    Thread Starter
    Well, I am the Tech, So what I am trying to do is get ready for next years Battle and I want to have a compressor on hand for each of my units. But I am having a hard time getting ahold of Goodman Tech Support and It sounds like I need to have my supplier just order me the compressor. I was trying to be thrifty and get the same compressor else where for a cheaper price but it sounds like that is not the best choice. Thanks for your reply.

  5. #5
    Join Date
    Aug 2002
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    Southold, NY
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    so your going to purchase a compressor now and let the warranty possibly run out?

    My supply houses keep many in stock, and I can get one in a day or 2.

    Why compressors? Everything else fails much sooner, if your going thru compressors you might want to find out why!
    Last edited by pecmsg; 11-18-2019 at 09:05 AM.

  6. #6
    Join Date
    Nov 2019
    Location
    Wyoming
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    Thread Starter

    This is where things got crazy

    Quote Originally Posted by pecmsg View Post
    so your going to purchase a compressor now and let the warranty possibly run out?

    My supply houses keep many in stock, and I can get one in a day or 2.

    Why compressors? Everything else fails much sooner, if your going thru compressors you might want to find out why!
    As the story goes , I have 185 units,(Apartment Community) all of which are on the way out and 1/4 of them are already burn outs and 10 seer r-22 dinosaurs. Nearly half of them where not properly installed nor matched with the air handlers. So to make it just a little harder we are performing that very sketchy procedure of r410a conversion with only solvent flushing the lines , sometimes replacing the Evap coil as needed and throwing on a new condenser that is 13 seer with a 10 seer air handler. Not only physics says it cant be done but ethically it should not be done. BUT, with a starving budget and an owner who is trying to sell, I have my orders and I need the experience since I am brand new to the industry of Hvac. Quite the learning experience, BUT I like challenges. So like I said, I am just getting prepared for expected compressor burn outs due to acid contamination on units already converted. Waranties are already void from time of installation. Yep, its a lot of wasted time and money but, I have my orders. And yes, I do have all those other parts already that usually go out first. Now of those 185 units, there is only 4 models so I was going to get 4 Compressors to start. People in apartments get pretty upset when anything breaks so we are simply trying to make the fastest recovery on repairs.

  7. #7
    Join Date
    Oct 2014
    Location
    Saint Pail, Minnesota
    Posts
    694
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    just get the OEM replacement. You said you are new to HVAC, I would not recommend installing a different compressor.

  8. #8
    Join Date
    Nov 2019
    Location
    Wyoming
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    Thread Starter
    Sure thing, I hope I don't need them, My biggest concern is remnants of Liquid r22 finding its way to the new compressor, I did flush out the systems really good with a residue free solvent, But is it really residue free? I don't see how it could be but its supposed to be compatible with the refridgerant, I do plan on testing them early spring for ACID and I do have an Acid core filter drier on them now. And hopefully the old Evap coils that where not replaced don't blow out They were all working good this last summer with a Delta T of 17 and I only charged them to 50F, a little scary to take them 60F.

  9. #9
    Join Date
    Aug 2002
    Location
    Southold, NY
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    Quote Originally Posted by AlexCollins View Post
    Sure thing, I hope I don't need them, My biggest concern is remnants of Liquid r22 finding its way to the new compressor,
    I don't understand?
    Quote Originally Posted by AlexCollins View Post
    I did flush out the systems really good with a residue free solvent, But is it really residue free?
    Residue Free? Forget the flush, they do more harm then good!

    Quote Originally Posted by AlexCollins View Post
    I don't see how it could be but its supposed to be compatible with the refridgerant, I do plan on testing them early spring for ACID and I do have an Acid core filter drier on them now. And hopefully the old Evap coils that where not replaced don't blow out They were all working good this last summer with a Delta T of 17 and I only charged them to 50F, a little scary to take them 60F.
    Again I don't understand.

    Honestly how much experience do you have?

  10. #10
    Join Date
    Nov 2019
    Location
    Wyoming
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    Thread Starter
    Not very much at all experience, but from what I understand flushing the r22 is a must due to the fact that it remains a liquid even as the r410a vaporizes and will find its way to the compressor suction. We had a contractor before I started performing the work but on all 7 units that they converted they where installing 2 1/2 ton 13 seer condensers on the 2 ton 10 seer air handlers not only did the evap coils leak but the new compressors seized. When I gauged the ones that were still working they were charged to 60F / 167psi. So I charged my conversions to 50 F/ 143psi.Other than the fact that technically the evap coils should be changed due to capacity issue they are working.

  11. #11
    Join Date
    Sep 2005
    Location
    Atlanta GA area
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    Most refrigerants 'boil off' at temps well below freezing (32*F)... so I would not be concerned about 'liquid R22'...
    (Your green-ness is showing... ... not busting your chops)

    The problem is... compressors are made for specific applications... just because it is rated at 28K BTU's does NOT mean it will work in a 2.5T unit... LOTS of other things to concern yourself with.

    My suggestion:
    Given you are employed in the business...
    Get your post count up, apply for PRO status...
    We can talk about this stuff in the PRO sections... however forum rules do not allow those discussions in public forums.
    GA-HVAC-Tech

    Your comfort, Your way, Everyday!

  12. #12
    Join Date
    Aug 2002
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    Southold, NY
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    With the exception of a few refrigerants you won’t use, you’ll never have liquid in a open system.
    Forget flushes they do more damage then good.
    Search changing with Super Heat and Sub Cooling.
    Pressures without temperatures are worthless.

    Air Flow
    Air Flow
    Air Flow

  13. #13
    Join Date
    Sep 2005
    Location
    Atlanta GA area
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    Quote Originally Posted by pecmsg View Post
    With the exception of a few refrigerants you won’t use, you’ll never have liquid in a open system.
    Forget flushes they do more damage then good.
    Search changing with Super Heat and Sub Cooling.
    Pressures without temperatures are worthless.

    Air Flow
    Air Flow
    Air Flow
    YES ^ ^ ^ ^ ^

    The most mis-understood part of residential and small commercial HVAC is airflow...
    LEARN IT (yeah, it is difficult, that is why it is mis-understood... )

    Again... get your PRO rating... it is worth it!
    GA-HVAC-Tech

    Your comfort, Your way, Everyday!

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