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  1. Replies
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    As long as the condensing unit is below the...

    As long as the condensing unit is below the evaporator it doesn't matter!
  2. That's considered a False Positive. Dust dirt...

    That's considered a False Positive.

    Dust dirt other chemicals and yes just straight air flow can give these false readings!
  3. Replies
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    3-Tons for 1600 Sq ft …………….You don't have a...

    3-Tons for 1600 Sq ft …………….You don't have a problem with that?
  4. With the fan blowing a electronic is worthless....

    With the fan blowing a electronic is worthless. You need still air.
  5. Replies
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    Not an issue with a Positive pressure like the...

    Not an issue with a Positive pressure like the OP's
  6. Replies
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    I always laugh on a home inspection they write "...

    I always laugh on a home inspection they write " From the ground the roof appears sound" Another words "He's not responsible"

    In that wording Encapsulated I would take as Sealed whatever that...
  7. Replies
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    http://efficientcomfort.net/assets/documents/Under...

    http://efficientcomfort.net/assets/documents/Understanding_HVAC_System_Design_Issues.pdf

    Not an indorsement in any way but required reading:...
  8. I see a worker so for now I'll ASSUME that's...

    I see a worker so for now I'll ASSUME that's during construction.

    Good to see metal rather then flex!

    Yes those ducts need to be insulated!

    Please tell me those dampers are Manually operated...
  9. Just let the 1st stage handle it.

    Just let the 1st stage handle it.
  10. Replies
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    What excessive refrigerant?

    What excessive refrigerant?
  11. Replies
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    438

    Move it until you get the pressure your looking...

    Move it until you get the pressure your looking for.
  12. Replies
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    A lot has changed in the last 5 1/2 years that...

    A lot has changed in the last 5 1/2 years that the 1st post was made.
  13. Replies
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    438

    Solenoid valve at the evaporator inlet. Rewire...

    Solenoid valve at the evaporator inlet.
    Rewire the condensing unit to be controlled by a Low Pressure Control.
  14. So what’s wrong with long 1st stage run times?

    So what’s wrong with long 1st stage run times?
  15. Replies
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    438

    Every elec motor has a limited # of starts. Fan...

    Every elec motor has a limited # of starts. Fan cycle switches are fine for cool conditions 40 - 70*. Below 40-45* I prefer a head master for refrigeration speed drive for A/C.
  16. Leaks are a pain look for oil Electronic with...

    Leaks are a pain
    look for oil
    Electronic with air flow still
    Soap bubbles are good for where you can see the tubing not muck good in coils.

    For what you described I say infra red dye. ...
  17. Replies
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    If that system operates in the winter it should...

    If that system operates in the winter it should be a pump down.
  18. Only someone there can tell you that.

    Only someone there can tell you that.
  19. Replies
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    Forgot to add ...

    Forgot to add

    http://efficientcomfort.net/assets/documents/Understanding_HVAC_System_Design_Issues.pdf

    Not an endorsement but required reading:...
  20. 2 Stories...……………..2 Systems. At least 1 whole...

    2 Stories...……………..2 Systems. At least 1 whole house dehumidifier and at least 1 Humidifier.

    Basement gets a 3rd System with a dehumidifier.

    To save $ on operating costs...….Tighten the...
  21. Call for Service.

    Call for Service.
  22. :cheers:

    :cheers:
  23. Replies
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    Ill let Dan do the calculations 2 story...

    Ill let Dan do the calculations

    2 story home...…………..2 Systems!

    If you want a finished basement then a separate system for that as well with a dehumidifier.

    At least 1 whole house...
  24. Replies
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    Post it

    Post it
  25. Off his Meds?

    Off his Meds?
  26. In your last posting:...

    In your last posting:
    https://hvac-talk.com/vbb/showthread.php?2216392-Can-You-mix-match-Handler-and-Condenser-brands/page3

    Dan was nice enough to suggest 1 1/2-tons yet you purchased a 3-ton...
  27. Ask Our Pros-Owner Assistance - NO DIY advice...

    Ask Our Pros-Owner Assistance - NO DIY advice will be given.
  28. Replies
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    Did you receive a Start up and commissioning...

    Did you receive a Start up and commissioning report or did they just open the valves and let it rip?

    Replacing like for like .....................I suspect typical Oversized equipment on...
  29. Replies
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    How was the replacement size determined, Like for...

    How was the replacement size determined, Like for Like?

    Yes Systems take on average 15 minuets to stabilize. At design conditions a properly sized and installed system should run all the time.
    ...
  30. Stop leak is the LAST step and even then I wont...

    Stop leak is the LAST step and even then I wont use it!
  31. A leak anywhere will...……..along with something...

    A leak anywhere will...……..along with something as simple as a plugged air filter.

    Sorry but Leak Stop is snake oil, Garbage, Crap, Last resort.

    Time to look for a replacement system!
  32. Replies
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    Im lucky to have 6 weeks and they tax me on that!

    Im lucky to have 6 weeks and they tax me on that!
  33. Replies
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    Y E S...

    Y E S
    https://hvac-talk.com/vbb/showthread.php?2216640-New-Residential-HVAC
  34. Replies
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    Concentrate more on the installing contractor and...

    Concentrate more on the installing contractor and how there deciding what size equipment is needed then the name on the boxes!
  35. Replies
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    842

    Plus a few decades

    Plus a few decades
  36. There multi colored!

    There multi colored!
  37. Another SALES Company. Find a contractor that...

    Another SALES Company.

    Find a contractor that knows how to fix it.
  38. That's not a Commissioning report its a Check...

    That's not a Commissioning report its a Check List. Worthless!

    A Basic Form...
  39. Replies
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    Lets see I like the Parking garage level 25...

    Lets see

    I like the Parking garage level 25 PPM Limit Max.

    So how's 69 PPM for hours or days safe?
  40. Replies
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    Would you buy a car with a 30 year mortgage? ...

    Would you buy a car with a 30 year mortgage?

    Glad your not my accountant!
  41. Replies
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    The last thing you want to do if finance it over...

    The last thing you want to do if finance it over 30 Years. You'll be paying for equipment that's been changed 3 or 4 times!
  42. Replies
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    The only way to lower the heating bill is to...

    The only way to lower the heating bill is to Tighten the Envelope! Windows, doors, insulation, vapor barriers. That will be your highest return on investment. Once tightened you can get much smaller...
  43. Replies
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    That unit is oversized, the short cycling caused...

    That unit is oversized, the short cycling caused the early failure.

    Don't understand 3" gap and cant do a combustion analyses?

    Replace the unit with a properly sized unit. Air structure should...
  44. Replies
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    A few more questions When at design conditions...

    A few more questions

    When at design conditions does the unit cycle on and off or run continues?

    Who installed this?

    Combustion Analyses #'s

    Is there a "Low Level" CO detector in the...
  45. Replies
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    How old is this unit? What environment is it in?...

    How old is this unit?
    What environment is it in?

    Cheaper to replace then change parts!
  46. Replies
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    Concentrate more on the installing contractor...

    Concentrate more on the installing contractor then the name on the box's or warranty's. They make or break a System!

    Not an indorsement but required reading:...
  47. Replies
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    Big box store detectors? Damn near Worthless....

    Big box store detectors? Damn near Worthless. Wont alarm until reaching 70PPM for at least 1 hour.
  48. Replies
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    Even worse.

    Even worse.
  49. Replies
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    Somehow I vision a old low velocity system that's...

    Somehow I vision a old low velocity system that's been changed to a higher velocity.

    Bad things are probably going to happen!
  50. Replies
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    Teaching these guys that 500 SqFt per ton is...

    Teaching these guys that 500 SqFt per ton is wrong is hard enough! :grin2:
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