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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...
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    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?
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    7.9 pints per kwh!

    7.9 pints per kwh!
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    1,316

    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.
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    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...
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    Oversized ducts

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

    :confused:
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    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.
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    Waterfurnace with infinity zoning?

    Can Carrier Infinity zoning be used with WaterFurnace 2 stage variable speed ground source heat pumps? Has anyone done this?
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    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...
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    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
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    2,232

    RoBoTeq and vtinknocker

    Thanks!

    Merry Christmas
  12. Thread: Twinning

    by rumn8r
    Replies
    20
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    2,232

    Twinning

    Can variable speed air handlers be twinned?
  13. Replies
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    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? ...
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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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    9,527

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

    Sorry, I meant to write "NOT compatible" and have since edited my post.
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    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...
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    Thanks Mark. Very helpful!

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

    coolguysfl, Good idea. I'll think about that.
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    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?
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    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 72F...
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    Does anyone know the answer to this?

    Does anyone know the answer to this?
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