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  1. Replies
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    See first post. Like I said, the bullet item's...

    See first post. Like I said, the bullet item's first sentence is directly contradicted by the last sentence, which is not really relevant as my system only requires one filter, not two, but it's the...
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    In a separate Goodman "Service Instructions"...

    In a separate Goodman "Service Instructions" manual, I found:



    So I believe what I wrote earlier about (return, transition duct) is correct WRT using the Goodman CFM chart. I also found:


    ...
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    Static pressure - where to measure?

    My system is set up like this:

    return --> furnace --> transition duct --> coil --> plenum

    My Goodman manuals relate "External static pressure" and "Coil drop" to CFM, but they fail to indicate...
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    This is the one (TX5N2): Removed link to...

    This is the one (TX5N2):

    Removed link to direct purchase site.

    The bottom picture has a very clear view of the little tube with the blue cap.
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    Yes, very much so. It was making good contact and...

    Yes, very much so. It was making good contact and strapped in properly with the copper strap which was also making tight contact.

    Q: There is a short tube sticking out of the bulb next to the...
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    Can you explain the condenser split? Did you make...

    Can you explain the condenser split? Did you make an arithmetic error on the indoor?



    His other thought was that the coil guy might have left the orifice in place, but he settled on the TXV as...
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    Tech came yesterday. His measurements: 80 198...

    Tech came yesterday. His measurements:

    80 198 PSIG (47 100 temp per PT chart)
    51 98 TEMP
    3 SH 1 SC (per his electronic meter)
    73 63 Split (inside)

    Diagnosis: Bad TXV. Nothing changes when...
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    The problem is I just paid for the installation...

    The problem is I just paid for the installation of the second warranty replacement evaporator coil in 5 years, and the system is back to its usual mediocre performance.

    As for what it does on...
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    I foil-taped wherever I could feel a leak and...

    I foil-taped wherever I could feel a leak and then looked for leaks (both in and out) with a stick of burning incense and taped those. The last two I remember finding were small input leaks at the...
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    So the numbers at 1 PM on this sunny day after...

    So the numbers at 1 PM on this sunny day after the AC was running 45 minutes are:

    Condenser exhaust: 100.6
    Outdoor: 88.6
    Indoor: 71.7
    Indoor RH: 52%
  11. Replies
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    I was just giving you the first numbers in the...

    I was just giving you the first numbers in the table. I have no idea what the actual values are in my installation. Here's the whole table for "MED":

    Med
    3.5 (Tons AC)
    0.1: 1,676 (CFM) 31 (Temp...
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    It's a GSC130421A (mis)matched to a CSCF4860N6A,...

    It's a GSC130421A (mis)matched to a CSCF4860N6A, which Goodman says are 13.5 SEER when combined. The original documentation said the coil was "5 tons", but revisions describe it as "4-5 tons". The...
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    It's QuietFlex brand with a silver jacket. I...

    It's QuietFlex brand with a silver jacket. I believe it's this "'RIP STOP' Silver Jacket" product, same specs, same appearance:

    http://www.quietflex.com/pages/products_silverjacket.html


    ...
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    The coil case is indeed insulated. Any other...

    The coil case is indeed insulated.

    Any other symptoms of contamination? Any way to test? FWIW, I am getting a 20F split across the coil, as measured with digital thermometer through holes in the...
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    The system had been running for a couple of hours...

    The system had been running for a couple of hours before I took the temps around noon. I let it run an additional hour after reducing the blower speed. It maintained that very slightly lower temp...
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    Maximum delta T?

    After having my evaporator coil replaced for the second time in five years due to a leak, I'm again obsessing over my HVAC system, with it's R4.2 flex duct suspended from the rafters in a stinking...
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    New evaporator coil, new noise

    I recently had my evaporator coil replaced due to a leak, and the new one is making some noise I wasn't hearing before inside the house. When it starts up, it makes a steady wind or running water...
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    There are four 7" supplies behind that door,...

    There are four 7" supplies behind that door, which is a hollow door with 2 column by 3 row decorative rectangular carvings embedded in it. I don't think a grille would work in it. I did a coarse test...
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    Door undercut maximum?

    To help with a return insufficiency, what's the most you would undercut a bedroom door with tile on one side, shortish carpet on the other, such that it wouldn't look stupid, compromise privacy, etc?...
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    Got it fixed today. Apparently, it was just a...

    Got it fixed today. Apparently, it was just a faulty board.
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    Fried Goodman control board

    Nearly 5 y/o Goodman system. Last week I turned the gas furnace on for the first time this year and let it run 20 minutes. Worked fine, so I turned it off and didn't use the HVAC system at all for...
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    The evaporator coil is what the tech said was...

    The evaporator coil is what the tech said was probably leaking. I only updated the thread to relate the new information about the leaking "condenser service valve", which was noted on a receipt 4...
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    I have about six months left on the warranty, and...

    I have about six months left on the warranty, and I actually brought this up. We talked about doing it at the winter maintenance, before it gets too cold outside. However, I don't know if it would...
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    I declined the leak test this time. I wasn't in...

    I declined the leak test this time. I wasn't in the mood to hear I might need a new evaporator coil after replacing the three y/o original coil just a couple years ago. Plus, it's late in the season.
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    Still going strong 3 weeks since the 3 pounds,...

    Still going strong 3 weeks since the 3 pounds, knock on wood.

    When I was filing my receipt for the latest service call, I went through my old receipts, and the very first one from several years...
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