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  1. Replies
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    142

    Well, the 4X12 design of he wood diffuser is NOT...

    Well, the 4X12 design of he wood diffuser is NOT similar to the one I figured the Ak on; therefore the free-air-area (Ak) was higher than the wood configurations. Even if the design were similar the...
  2. Replies
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    1,258

    IMO, all of the fuss about high SEER Ratings is...

    IMO, all of the fuss about high SEER Ratings is mainly a fabricated marketing ploy that turns out to be meaningless due to nothing fitting those crazy lower temp requirements.

    I know individuals...
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    142

    Well, if the design is similar to the metal 4x12,...

    Well, if the design is similar to the metal 4x12, the Ak (free-air-area) is .18.
    That would work with the Ak of a 6" duct; which is .19635-Ak.

    At 600-fpm the flow would be 110-CFM *X 30 > would...
  4. That is the price & cost of ignorance; they don't...

    That is the price & cost of ignorance; they don't know enough to know better...I blame ignorance...
  5. Video does not work... Could be going off on...

    Video does not work...

    Could be going off on high pressure switch...could be numerous things...
  6. Of course he should not have bought the condenser...

    Of course he should not have bought the condenser & done what he had done; but he lacks the knowledge to even know that would be a huge costly mistake; HVAC consumers are horribly uninformed & ripe...
  7. IMO, we need to cut HVAC consumers some slack, I...

    IMO, we need to cut HVAC consumers some slack, I have witnessed far too many times the incompetent work that is experienced far too much & far too often by consumer/customers in our industry. There...
  8. If you live in a humidity problem area, U don't...

    If you live in a humidity problem area, U don't want the larger coil; stay with a coil the same tonnage as the condenser.

    Within the above situation, the difference in SEER is irrelevant,...
  9. Replies
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    Low-stage-one, may not always reach a cold enough...

    Low-stage-one, may not always reach a cold enough evap-coil to effectively reduce humidity; if low stage does not seem to do the job with low (-10% setting) try stage 2 high stage with the low CFM...
  10. Replies
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    The compressor’s discharge line temperature...

    The compressor’s discharge line temperature should be taken about 1-3 inches away from the compressor on the discharge line. This discharge temperature should never exceed 225F. If access is...
  11. The important thing is to have load-calcs...

    The important thing is to have load-calcs performed on your home.

    Adding some Returns with large area & deep filter boxes might help, but I wouldn't add that many.

    Right sizing plus a good...
  12. Replies
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    Well; Mr. Bill's 400-CFM per/ton; 2Ton system is...

    Well; Mr. Bill's 400-CFM per/ton; 2Ton system is 800-CFM, that is an appropriate/proper nominal CFM; NOT a low CFM.
  13. Replies
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    If the install is real good & the duct system &...

    If the install is real good & the duct system & everything is done to meet manual D requirements, a 3.5-Ton system with a 3.5-Ton evaporator coil & TXV ought to handle the heatload well enough.

    U...
  14. Replies
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    If the outdoor condenser is running with the...

    If the outdoor condenser is running with the blower not working in the house shut the system off t the thermostat & keep it off.

    If the indoor blower is running but no airflow then the evaporator...
  15. Since it's a rooftop setup with probably attic...

    Since it's a rooftop setup with probably attic air handler & ducts, I'd insulate the liquid line.
    The heat reflected off the roof could be creating problems...

    Make sure it';s not drawing hot...
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    343

    In your situation, we can't tell U what to do. ...

    In your situation, we can't tell U what to do.

    Remember U only have a couple days & a few hours of 100F conditions, therefore, even if the indoor temp raised to 78 or 80F with a low humidity...
  17. The best setup to control humidity is an...

    The best setup to control humidity is an evaporator coil, with a TXV metering device, & the same evap tonnage as the condenser, & blower running @ 350-CFM per/ton of cooling.

    If a fixed orifice...
  18. Replies
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    What beenthere stated, plus a high humidity...

    What beenthere stated, plus a high humidity latent load occurring at lower or the same blower speed can put just as a heavy or heavier heatload on the compressor.

    While the sensible load portion...
  19. Replies
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    If that is your actual cooling load then the...

    If that is your actual cooling load then the system is delivering a lot more airflow than I had guessed; using 90 instead of 95F could be 2000-CFM or more. It is very difficult to get 2000-CFM... ...
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    What R-value are the duct runs? Ducts are...

    What R-value are the duct runs?

    Ducts are probably leaking, perhaps on both the supplies & returns.

    You need to get a good contractor on the problem...soon as possible.
  21. Replies
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    I couldn't access HVAC-Talk for several days, NO...

    I couldn't access HVAC-Talk for several days, NO response from site so late post, sorry.

    On an earlier post U had 90F outdoors instead od 82; that won't make much difference concerning sensible...
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    The good part is you have 6 areas that you can...

    The good part is you have 6 areas that you can use programmable thermostats to regulate temps.
    You should have thermostats that allow U to set temp-differentials ON/OFF scenarios.

    Since U feel...
  23. Replies
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    Well, my brother hasn't happy with the way his...

    Well, my brother hasn't happy with the way his new 12-SEER 1.5-Ton unit was performing, all the young man had with him was a manifold gauge, all he checked was the suction pressure on a TXV system....
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    If we kicked everyone out that ever made mistakes...

    If we kicked everyone out that ever made mistakes we'd all be gone; there would be no one left; that is NOT & never was my point. We have to help each other overcome & correct our mistakes, NOT kick...
  25. why could it not be a restricted circuit or 2? ...

    why could it not be a restricted circuit or 2?

    Could be, if those restricted only affect one side of the coil...
    Can't see the situation from where we are, but could be an unbalanced airflow...
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