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  1. Replies
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    ROFL. That is bad. No problem using a smaller...

    ROFL. That is bad.

    No problem using a smaller company. They could be far better, or not as good as the large companies.
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    Long runs times will not harm your A/C. They are...

    Long runs times will not harm your A/C. They are designed to be able to run 24/7 with no harm to them.
  3. Yeah, a tech that knows how to wire low voltage...

    Yeah, a tech that knows how to wire low voltage is what you need.
  4. Replies
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    No, your system could have a leak, or other...

    No, your system could have a leak, or other problem.
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    FYI. If you click on your user name. It will...

    FYI.

    If you click on your user name. It will bring up a box, that will let you select to see all threads you have made. Makes it easy to find threads then.
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    Larger coils both indoor and outdoor. Higher...

    Larger coils both indoor and outdoor. Higher efficiency blower motors and condenser fan motors. And sometimes hard shut off TXVs.
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    Moved to AOP.

    Moved to AOP.
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    Merged your 3 threads.

    Merged your 3 threads.
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    Probably an internal check valve at the inside...

    Probably an internal check valve at the inside unit.
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    Yes. It could have the registers balanced out...

    Yes. It could have the registers balanced out better, without harming the A/C.
  11. Thread: Ylo to Bk?

    by beenthere
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    263

    R to BK must be cut either way. Connect stat...

    R to BK must be cut either way.

    Connect stat Y/lo to units Y/LO, and the thermostats universal terminal to the BK. That way it slows the blower when ever the humidity is above set point. Plus you...
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    Probably cause damage to teh compressor from...

    Probably cause damage to teh compressor from liquid flood back. The A/C needs to move X amount of air, and your blower can only move so much against X amount of resistance.

    Duct work alterations...
  13. You did see where that calc says its not...

    You did see where that calc says its not accurate. And to have a proper one done.
  14. Thread: Ylo to Bk?

    by beenthere
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    IAQ should have U terminals. Connect to them, and...

    IAQ should have U terminals. Connect to them, and set it up to slow the blower when RH is above set point.
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    Since heated air rises. Houses that had heat only...

    Since heated air rises. Houses that had heat only when originally built, often don't have duct work large enough going to the second floor. Since not as much air was needed for heat.
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    The 101 is the smaller one, they also have the...

    The 101 is the smaller one, they also have the larger one. Made for that unit.
  17. Thread: Ylo to Bk?

    by beenthere
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    263

    Get an IAQ thermostat, it can slow the blower...

    Get an IAQ thermostat, it can slow the blower whether in first or second stage cooling.
  18. Replies
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    Even so, still more A/C than you should need....

    Even so, still more A/C than you should need. Probably about 1 ton over sized.
  19. Replies
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    Can't say what it is without being there while it...

    Can't say what it is without being there while it does it.
  20. 76F air might make it feel okay at night time....

    76F air might make it feel okay at night time. But it isn't cold enough at the normal air volume an A/C blows out to cool a house during the day, or hotter times of the year. Nor is the A/C's indoor...
  21. Doubt your place needs 3 tons of A/C. Increasing...

    Doubt your place needs 3 tons of A/C. Increasing size can result in an increase in your indoor RH. Causing you to set the thermostat to a lower temp to be comfortable. And using more electric than...
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    Good grief thats a large A/C for a small 1650 sq...

    Good grief thats a large A/C for a small 1650 sq ft house. Must have a lot of windows to need that much.
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    Goodman has the adapters in the sizes I said.

    Goodman has the adapters in the sizes I said.
  24. Thread: Ylo to Bk?

    by beenthere
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    263

    Isn't BK the terminal to slow the blower?

    Isn't BK the terminal to slow the blower?
  25. Thread: Wire too hot

    by beenthere
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    Okay, so less than 44.41 amps.

    Okay, so less than 44.41 amps.
  26. Thread: Ylo to Bk?

    by beenthere
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    263

    What brand are you talking about.

    What brand are you talking about.
  27. Thread: Wire too hot

    by beenthere
    Replies
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    635

    You still don't have a good connection. That...

    You still don't have a good connection.

    That breaker should be replaced, as the lug is not burnt.

    Your blower FLA is 2.4 amps. 10KW at 243 volts is only 41.15 amps. So total amp draw on that...
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    Instal an HH LLFD.

    Instal an HH LLFD.
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    Its post number, not the number of threads needed.

    Its post number, not the number of threads needed.
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    I have dye in 0 and -10F WIFs. No problems with...

    I have dye in 0 and -10F WIFs. No problems with any of them.
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    Is this on a MH/modular home? If so, then an...

    Is this on a MH/modular home?

    If so, then an additional return should have been added to the home, and the smallest return flex duct size for the unit is 16".

    Smallest flex sizes for that model...
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    Text book way is to replace the lines. That...

    Text book way is to replace the lines.

    That said, there is no real need to. But, your piece of mind may make replacing the lines worth while.
  33. A scroll compressor starts unloaded every time....

    A scroll compressor starts unloaded every time. So they are feeding you a line of BS. Reciprocating compressors act like they said, not Scrolls.

    Is the hard start they put on a 2 wire or 3 wire. 3...
  34. May have to do it in multiple 1/4" beads. Leaving...

    May have to do it in multiple 1/4" beads. Leaving each one cure for 30 minutes or more before applying the next one.
  35. Replies
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    Yeah, some gross over sizing.

    Yeah, some gross over sizing.
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    Stage 1 differential affects how much of a temp...

    Stage 1 differential affects how much of a temp spread between on and off.

    Running the blower after the condenser shuts off slightly increases the A/Cs efficiency, but also raises the indoor RH...
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    Too low of an RH won't cause mold/ or allow it to...

    Too low of an RH won't cause mold/ or allow it to grow. In low RH, mold becomes inactive. As in it won't die, it just can't create new spores.

    In certain areas of the country, they have trouble...
  38. Did the 3 ton cool the upstairs okay 5 years ago....

    Did the 3 ton cool the upstairs okay 5 years ago.

    Remember, the upstairs may not cool well just because you duct system isn't even sized big enough for a 3 ton.

    Over sizing an A/C in a hot...
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    Or if you know manufacturer name, and grille...

    Or if you know manufacturer name, and grille model. You can use that data for that grille.

    http://www.hartandcooley.com/assets/files/7v/672_674_673_661_a661.pdf
  40. Silicon caulk. It will flex as the pipes expand...

    Silicon caulk. It will flex as the pipes expand and contract.
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    Yeah, the staging setting won't effect anything....

    Yeah, the staging setting won't effect anything.

    Set the residual cool to zero, and see if that stops the blower from intermittent operation.
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    That contractor is definitely out to lunch.

    That contractor is definitely out to lunch.
  43. Replies
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    Moved to AOP. Prices removed.

    Moved to AOP.

    Prices removed.
  44. Moved to AOP.

    Moved to AOP.
  45. 650 sq ft should be easily cooled by a 1.5 ton...

    650 sq ft should be easily cooled by a 1.5 ton unit, and be slightly over sized. Unless its all glass walls. Or your outside temps are 125F/52C.

    Can you post a link to where Daikin says 800 BTU...
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    https://hvac-talk.com/vbb/showthread.php?1241-Welc...

    https://hvac-talk.com/vbb/showthread.php?1241-Welcome-to-HVAC-Talk!-Please-read-these-rules
  47. Replies
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    No, something is not right.

    No, something is not right.
  48. Moved to AOP.

    Moved to AOP.
  49. Depends on what furnace/air handler he has.

    Depends on what furnace/air handler he has.
  50. Inverter systems save money by decreasing...

    Inverter systems save money by decreasing compressor capacity to match the load of the house/area/building. Not just by converting A/C to DC.

    A DC motor is only about 30% more efficient than an...
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