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  1. Replies
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    I can wire the motor to turn clockwise or...

    I can wire the motor to turn clockwise or counterclockwise. However, I can't see anything on the fan unit or the manual to indicate which direction the rotation should be and I don't really want to...
  2. Replies
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    1,855

    Rotation direction

    I have a ~1980 Trane Torrivent air handler and just replaced the motor. How do I find out what the correct rotation direction is?
  3. Replies
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    1,415

    7.9 pints per kwh!

    7.9 pints per kwh!
  4. Replies
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    1,415

    No, I'm in Michigan. Just looking for comfort...

    No, I'm in Michigan. Just looking for comfort and energy efficiency. I believe that dehumidifier is the most efficient available.
  5. Replies
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    1,415

    What is the best way to go?

    I am going with a Trane system and am thinking about a 19i only or a 15i combined with a central dehumidifier (http://www.thermastor.com/Ultra-Aire-XT150H/). My thoughts are that the 15i and central...
  6. Replies
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    Oversized ducts

    Pstu,
    Why would oversized ducts decrease energy efficiency and humidity removal?

    :confused:
  7. Replies
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    1,052

    Thanks to all who replied; I hope WaterFurnace...

    Thanks to all who replied; I hope WaterFurnace comes up with a more advanced design but I can't wait. The Intellizone doesn't seem to measure up to the Infinity or Trane controls.
  8. Replies
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    1,052

    Waterfurnace with infinity zoning?

    Can Carrier Infinity zoning be used with WaterFurnace 2 stage variable speed ground source heat pumps? Has anyone done this?
  9. Replies
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    1,172

    Ground-source heat pump question

    I live in Michigan and the heat output of ground source heat pumps is inadequate if I size the units for AC. I am considering the 2 stage WaterFurnace Envision series heat pumps. I plan on adding a...
  10. Replies
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    9,324

    So no difference among brands of air handlers...

    So no difference among brands of air handlers that use ECM motors in gauge of sheet metal, ease of adding hydro coils, control of the ECM motor, etc.?
  11. Thread: Twinning

    by rumn8r
    Replies
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    2,472

    RoBoTeq and vtinknocker

    Thanks!

    Merry Christmas
  12. Thread: Twinning

    by rumn8r
    Replies
    20
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    2,472

    Twinning

    Can variable speed air handlers be twinned?
  13. Replies
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    9,324

    Best air handler with ECM for hydro air

    What air handlers should I consider for a hydro air system (hot water coil) that use ECM variable speed motors? I am aware of Carrier and Trane. Are there other manufacturers I should consider? ...
  14. Replies
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    Dash, Thanks for the tip on the shared return...

    Dash,

    Thanks for the tip on the shared return with VS air handlers; I will discuss this with the ME.

    Mark,

    Using the duct sizes and the rebalanced register sizes it looks like the registers...
  15. Replies
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    10,282

    I think you might have misunderstood; I currently...

    I think you might have misunderstood; I currently have one air handler for the house and the proposal is to switch to three.
  16. Replies
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    10,282

    Mark, The bedroom ducts run under the living...

    Mark,
    The bedroom ducts run under the living room concrete floor but are insulated, then run up through a closet to the attic and run to each of 3 bedrooms in the attic space but they are insulated....
  17. Replies
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    cem-bsee, I think to get enough airflow but I'm...

    cem-bsee,
    I think to get enough airflow but I'm not sure. Both heat and air are oversized for the Main house and the BR wing but the ME specified Trane VS furnaces with high/low fire and 19i AC...
  18. Replies
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    10,282

    Dash,

    Here are the existing registers and ducts and how the ME proposed to rebalance the registers but using the existing ducts. Currently the system is hydro air and the blower is a Trane Climate Changer...
  19. Replies
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    10,282

    Sorry, I meant to write "NOT compatible" and have...

    Sorry, I meant to write "NOT compatible" and have since edited my post.
  20. Replies
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    10,282

    A HVAC contractor emailed me to say that he had a...

    A HVAC contractor emailed me to say that he had a conference call with a couple of Carrier engineers (state and regional) and they were very concerned that the Infinity variable speed blowers would...
  21. Replies
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    Thanks Mark. Very helpful!

    Thanks Mark. Very helpful!
  22. Replies
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    coolguysfl, Good idea. I'll think about that.

    coolguysfl, Good idea. I'll think about that.
  23. Replies
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    673

    Thanks Mark. Do you think heating can be staged...

    Thanks Mark. Do you think heating can be staged by controlling a 2 speed pump and changing the speed of the motor?
  24. Replies
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    719

    Let me word this more precisely: Is there any...

    Let me word this more precisely: Is there any way to use 2 outside units with 2 dual coil inside units in different air handlers (and duct systems) and have them staged so that one is set to 72°F...
  25. Replies
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    673

    Does anyone know the answer to this?

    Does anyone know the answer to this?
  26. Replies
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    456

    Thanks Mark!

    Thanks Mark!
  27. Replies
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    456

    Can someone please tell me if the cfm of Trane VS...

    Can someone please tell me if the cfm of Trane VS air handlers can be controlled by third party controls such as Tekmar controls or Honeywell zoning controls? For instance, if I use a hydronic coil...
  28. Replies
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    I thought I would get a quick yes or no answer to...

    I thought I would get a quick yes or no answer to this.
  29. Replies
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    545

    I am planning on a swimming pool heat exchanger...

    I am planning on a swimming pool heat exchanger with a high efficiency boiler as a heat source. I was just wondering about this as a way to reclaim heat from the 5T and 3T AC units when they are...
  30. Replies
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    Thanks, my application is residential with an...

    Thanks, my application is residential with an indoor pool. I live in Michigan so payback might not be there.
  31. Replies
    5
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    545

    Does anyone know anything about using heat in...

    Does anyone know anything about using heat in refrigerant going from indoor coils to outside condensers to heat water using a refrigerant to water heat exchanger? I just noticed this unit from...
  32. Replies
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    Not twinning

    I forgot to say that the 2 air handlers are for 2 different duct systems.
  33. Replies
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    719

    The HVAC system in my ~40 year old house consists...

    The HVAC system in my ~40 year old house consists of a large air handler and two 5 ton outdoor units that can be staged to work at different temperatures. This provides humidity control similar to...
  34. Replies
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    Does Trane support hydronic coils with their...

    Does Trane support hydronic coils with their variable speed air handler and this zoning system?
  35. Thread: Ice dams

    by rumn8r
    Replies
    0
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    442

    I have had problems with ice dams on one part of...

    I have had problems with ice dams on one part of my roof (no leaks fortunately) and I now think I know why. That same part of my house has supply ducts feeding registers in the ceiling of the...
  36. Thanks Mark!

    That was a very helpful explanation to me.
  37. desto1 and dash

    I have heard that the Infinity Zoning System is the best but I don't know why. Can you tell me why the Carrier Infinity zoning system is better than the Trane Comfort Link system? I think they...
  38. Replies
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    modulating dampers?

    Do any of these zoning systems control modulating dampers and vs blowers besides Carrier and Trane?
  39. Is there anyone familiar with BOTH of these...

    Is there anyone familiar with BOTH of these zoning systems that can tell me why they think one is better than the other? I am considering a total new high end system with variable speed blower and 2...
  40. jrbenny: thanks. Can anyone else comment on...

    jrbenny: thanks. Can anyone else comment on whether or not Trane zone controls are compatible with hydronic coils in their air handlers?
  41. Replies
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    10,282

    Thanks! ...and the consensus is that the HVAC...

    Thanks! ...and the consensus is that the HVAC contractor can add dampers to increase static pressure if needed so I can use the Infinity system??
  42. Replies
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    10,282

    Back to my oversized ducts

    So oversized ducts = low static = lower watts with VS (ECM) blowers. Right?
  43. Mark Beiser

    Mark, Can you add anything?
  44. What about a similar system from Trane? Does the...

    What about a similar system from Trane? Does the Trane high-end zone control with modulating dampers and variable speed air handler support hydronic coils?
  45. Can it be hooked up so the secondary heat...

    Can it be hooked up so the secondary heat (electric strips) be used as primary (if no heat pump) to switch a circulating pump to supply hot water to a hydronic coil? How will the new Carrier zone...
  46. I am considering a Carrier system comprising a...

    I am considering a Carrier system comprising a variable speed air handler, 2 stage air conditioner, Infinity zoning, with a hydronic hot water coil with heat supplied by a high efficiency boiler. I...
  47. Replies
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    10,282

    Htrguy, The ME didn't say that dampers will...

    Htrguy,

    The ME didn't say that dampers will reduce airflow, it was the contractor (if I understood him correctly). However, even if I misunderstood he was still hesitant to install variable speed...
  48. Replies
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    So, are variable speed furnaces compatible with very oversized ducts or not?

    I hired a ME to do a heat loss/heat gain and design a replacement system so I can get a couple of bids (yes, it has taken a very long time). He didn't think the oversized ducts were a problem and...
  49. Replies
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    No, they are on 2 different duct systems: one for...

    No, they are on 2 different duct systems: one for the bedroom wing and one for the rest of the house.
  50. Replies
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    Tranedog, I also have a boiler that I am...

    Tranedog,

    I also have a boiler that I am replacing with a Weil McLane Ultra modulating condensing boiler. I have thought about doing as you suggest with variable speed air handlers. Will...
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