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  1. Replies
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    655

    Humidifier upstairs or downstairs?

    If you could only have 1 humidifier where would you install it? On upstairs furnace or downstairs one?

    Also if we keep house @ 55 degrees for a month at the time in winter will it even work?
  2. New construction what type of system to use?

    Eventually this will be handled by a pro, but at this point while house is still on paper I was wondering, what kind of system would you guys recommend for NJ shore house ( hot and humid summer)....
  3. Thanks, Is one way better then other or just...

    Thanks,

    Is one way better then other or just depends on location of the outlet? In other words if 3 way moved away from the window and changed into 4 way would result be the same ?
  4. 3 way grille or 4 way grill in front of the window

    Can someone explain to me when to use 4 way grille and when 3 way? In this particular I case I need to replace old rectangular grille in the ceiling tile right above the window to the new 8 by 8 one,...
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    552

    OK, but is it worth re-ducting? Cost vs benefit. ...

    OK, but is it worth re-ducting? Cost vs benefit.
    Is this why bathroom has recirculating fan and no exhaust?
  6. Replies
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    552

    Duct work or absence of it question

    Office space I'm looking to acquire for my business, has "interesting" HVAC design. Heat-pump located in the closet with supply runs going to different rooms ceilings, which looks normal, but returns...
  7. zoning is ewc and York 9v furnace I don't mean...

    zoning is ewc and York 9v furnace
    I don't mean any disrespect but is my question really brand dependent?
  8. anybody?

    anybody?
  9. Isn't that what variable drive does? Ramps up and...

    Isn't that what variable drive does? Ramps up and down depending on static pressure?
  10. Barometric by-pass with variable airhandler

    Originally had zoning system installed with barometric bypass on the single speed air handler, now after replacing it wit variable speed one i have a question about need of the bypass. Sometimes I...
  11. Replies
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    898

    So stat supposed bring first stage on based on...

    So stat supposed bring first stage on based on humidity alone, correct?
  12. Replies
    9
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    898

    So t-stat does not turn Ac on on humidity alone?...

    So t-stat does not turn Ac on on humidity alone? Only overcools when there is call for AC? Is this correct?
  13. Replies
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    898

    It is York 9V not sure what the number is

    It is York 9V not sure what the number is
  14. Replies
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    898

    Help with Vision Pro IAQ dehumidification

    Can someone explain how to use dehumidification option on this Tstat.
    It is connected to var speed 2 stage HP. Dehum option set to 379-1 dehumidify with AC.Installer Test 6 runs AC @ lowest speed....
  15. Replies
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    3,433

    Thanks guys Dash - I have recently installed...

    Thanks guys

    Dash - I have recently installed York 2 stage var speed dual fuel HP - 2 stage natural gas furnace, do not know what a model number is, plus it's zoned and controlled by 3 different,...
  16. Replies
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    3,433

    skippedover

    So there is a thermostat which will stage down at some point during the same cooling cycle for?

    Is that how all that advanced technology being utilized or am I missing a point of 2stage var speed...
  17. Replies
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    3,433

    skippedover

    so who or what exactly is doing up and down staging, thermostat?
  18. Replies
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    3,433

    2 stage variable speed operation

    Can some one explain to me proper order of operation of the 2 stage var speed system to use all the benefits of it?

    For example: Thermostat calls 1st stage, 2nd, then off, again 1st, 2nd off...
  19. Replies
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    In the setup you are describing where unit goes...

    In the setup you are describing where unit goes in and out of the 2nd stage but stays in 1st, How does that happens? Air-handler does that or thermostat by diff in temp or outside temp?

    I have a...
  20. Replies
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    996

    Wouldn't you want to dehumidify basement if it is...

    Wouldn't you want to dehumidify basement if it is more humid and put dehumidification control in there?
  21. Replies
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    996

    No, I have 2 units 3 and 5 ton. 3 ton unit zoned...

    No, I have 2 units 3 and 5 ton. 3 ton unit zoned into Master Bedroom , rest of upstairs and basement ( 1 ton each)

    This was done to avoid squeezing 5 ton of air into the basement
  22. Replies
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    996

    So where is a prefered location basement or...

    So where is a prefered location basement or second floor?
  23. Replies
    7
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    996

    Humidistat location

    Given the choice where would you place humidistat( or replace existing thermostat to the one with dehumidification control) ?

    I have York 2 stage variable furnace with HP zoned between 2nd and...
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    2,400

    Low Static pressure

    Can anyone explain to me what it means, installer said it is about half from what it supposed to be. I am getting a new furnace put in and tech said that it could be caused by different reasons but...
  25. Replies
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    1,406

    Anyone? Bad Idea?

    Anyone? Bad Idea?
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