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  1. Replies
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    Of course

    Of course
  2. Replies
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    You may have a over sized unit, undersized ducts...

    You may have a over sized unit, undersized ducts or both.
  3. Replies
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    Is this a joke?

    Is this a joke?
  4. Replies
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    So why do you want to over ride the program?

    So why do you want to over ride the program?
  5. Are you on the Gulf Coast, Canadian border? ...

    Are you on the Gulf Coast, Canadian border?


    There are any # of sites that you provide the data and they’ll run the calc.
    Search Manual “J”
  6. Replies
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    Reasonable fee is dangerous. Find a contractor...

    Reasonable fee is dangerous.
    Find a contractor that has been trained and knows HVAC and pay what they get!
  7. How difficult is it to take off a few covers and...

    How difficult is it to take off a few covers and look for oil!

    Find a different contractor 2 weeks there's a findable leak!
  8. Slight mist on the condenser to get the head...

    Slight mist on the condenser to get the head pressure within range will let you see if the glass will clear.
  9. Unfortunatly we can tell without a lot more...

    Unfortunatly we can tell without a lot more information
    Windows
    Doors
    How tight
    Insulation values

    The old rule of thumb was 500 Sq Ft per ton but that's a wild a$$ guess and only in extreme...
  10. OP Remove the address.

    OP

    Remove the address.
  11. low voltage, high voltage, Digital, pneumatics....

    low voltage, high voltage, Digital, pneumatics. All the same trouble shooting!
  12. Thread: Pro forum

    by pecmsg
    Replies
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    166

    Contact Dad The site had issues a while back....

    Contact Dad
    The site had issues a while back. Several members stats were lost!
  13. Thread: Control boards

    by pecmsg
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    13
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    227

    Our homes are cool!

    Our homes are cool!
  14. Thread: Basement door

    by pecmsg
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    251

    The floor may be dry but the RH is high!

    The floor may be dry but the RH is high!
  15. Thread: Control boards

    by pecmsg
    Replies
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    227

    B S It’s freeking hot. You want to whine do your...

    B S
    It’s freeking hot. You want to whine do your own work.

    I stand behind my brothers and sisters that deal with this crap every day and homeowners whine how in convinced they are.
  16. Thread: Mitsubishi City

    by pecmsg
    Replies
    6
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    182

    Good luck dealing with Engineers. Check the data...

    Good luck dealing with Engineers. Check the data they record!
  17. Thread: Control boards

    by pecmsg
    Replies
    13
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    227

    Get your ass up ther in that heat 110, 120, 130,...

    Get your ass up ther in that heat
    110, 120, 130, 140*f and fix it yourself!
  18. Thread: Control boards

    by pecmsg
    Replies
    13
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    227

    A/C is a luxury

    A/C is a luxury
  19. Thread: Control boards

    by pecmsg
    Replies
    13
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    227

    That I like.... He wasn’t present. Stick...

    That I like....
    He wasn’t present.

    Stick your butt into a 140* hot box and see how you react!
  20. Replies
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    Oversized equipment on undersized ducts....

    Oversized equipment on undersized ducts. Unfortunately very common!
  21. Replies
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    I didn’t ask how many sq ft or where it’s...

    I didn’t ask how many sq ft or where it’s located!
    The manual “J” takes all that into account.
    2 homes side by side can have completely different loads / Losses!
  22. So What are the run times ?

    So
    What are the run times ?
  23. Replies
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    Forget what you have. Demand a full and...

    Forget what you have.
    Demand a full and complete manual “J” Room by Room load loss calculation!

    Then a manual “D” duct calculation!
  24. I wouldn’t pay

    I wouldn’t pay
  25. Thread: Mitsubishi City

    by pecmsg
    Replies
    6
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    182

    Ceilings, floors walls are below Dew Point. Need...

    Ceilings, floors walls are below Dew Point. Need more or better ventilation.
  26. Replies
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    Did they replace all the lines?

    Did they replace all the lines?
  27. Replies
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    WHY ? ? ?

    WHY ? ? ?
  28. 15% over may make the difference. It will explain...

    15% over may make the difference. It will explain the lack of dehumidification but, Suppose you only needed 2.5-Tons now your 30 % over!

    Bet you that unit doesn't run more then 15 - 20 minuet...
  29. Whole house dehumidifier with Outside Air...

    Whole house dehumidifier with Outside Air connection would be perfect!
  30. Did they use the basement in there calculations?

    Did they use the basement in there calculations?
  31. There is no such thing as pressure is OK. ...

    There is no such thing as pressure is OK.
    There is no such thing as Freon looks good.
    We deal with superheat, and sub cooling, CFM’s, Along with several other calculations to determine what’s...
  32. Time to get the meter out and trace out where the...

    Time to get the meter out and trace out where the signals being lost!
  33. Pressures and Freon charge looks good so let’s...

    Pressures and Freon charge looks good so let’s start changing parts!!!

    Get a different contractor
  34. * https://m.youtube.com/watch?v=Cuy2cOGFfl0

    *

    https://m.youtube.com/watch?v=Cuy2cOGFfl0
  35. Replies
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    417

    Chilled Water coil Titinium or Stainless Steel...

    Chilled Water coil
    Titinium or Stainless Steel
    Nothing to rot.
  36. Thread: What to buy?

    by pecmsg
    Replies
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    165

    Pricing is not allowed. Regional thing. ...

    Pricing is not allowed. Regional thing.

    Concentrate more on the installing contractor and the personal doing the work and less on the names on the box’s!
  37. Replies
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    Keeping it Simple :whistle:

    Keeping it Simple :whistle:
  38. /RRRRRRR Guys can do anything!:cheers:

    /RRRRRRR Guys can do anything!:cheers:
  39. Replies
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    last facility I used an old style Composition...

    last facility I used an old style Composition book.

    There is NO Official Form.
  40. Getting the static pressure in regular duct...

    Getting the static pressure in regular duct systems seem difficult to many, the Low static Minis require make it even harder.

    Is 80% equipment allowed in your area? Even 80% can be noisy.

    I...
  41. Replies
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    Stainless can be brazed but there's still the...

    Stainless can be brazed but there's still the Bi-Metal to worry about, how will it hold up in that environment?

    Contact Danfoss Engineers and see what they say!
  42. Thread: Mitsubishi City

    by pecmsg
    Replies
    6
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    182

    Conditioned Space so there's Supplies and returns?

    Conditioned Space so there's Supplies and returns?
  43. When was the last time that unit was serviced? ...

    When was the last time that unit was serviced?

    Do you have a service provider you can trust?

    It would be much smarter calling a contractor!
  44. Then I would get someone that can calculate Duct...

    Then I would get someone that can calculate Duct capacity to verify!

    FWIW 99% of replacements are Like for like. Only a few of us drop down because we check, know and have our clients best...
  45. Same hacks that don't use N2, Micron gauges, SH,...

    Same hacks that don't use N2, Micron gauges, SH, SC !!!
  46. :whistle:

    :whistle:
  47. So what are they going to do with the ducts? Your...

    So what are they going to do with the ducts? Your new 5-Ton system will require 2000 CFM's yet the ducts were designed for 1600 CFM's AT BEST! (That's probably what's wrong, ducts too small)

    Hope...
  48. Your wasting a lot of money now if or when the...

    Your wasting a lot of money now if or when the condensing unit goes!

    Properly sized and installed system is good for 15 - 20 years. 1 piece now 1 later who knows but it will nickel and dime you...
  49. Why are you trying to find that out? That's what...

    Why are you trying to find that out? That's what you pay the contractor for!

    R-22 system is old, you have a leaking coil. Every time that system began running just a little short of refrigerant...
  50. Replies
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    It needs the warm water for defrost. Shorten it...

    It needs the warm water for defrost. Shorten it and the plates will separate.

    My personnel machine wasted a lot of water. KML-250. I installed a water regulating valve on the water supply and...
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