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  1. Replies
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    407

    Three different times last night, I went into the...

    Three different times last night, I went into the attic and observed the furnace, running in low stage, as my wife increased the temperature. Each time there was the pounding sound a couple of...
  2. Replies
    5
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    407

    The furnace is actully in the attic. When I get...

    The furnace is actully in the attic. When I get home from work, I'm going to have the wife bump the temp up while I view the furnace and see if I can tell what's happening.
  3. Replies
    5
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    407

    Are you saying that when the furnace switches to...

    Are you saying that when the furnace switches to high stage heat, the blower speed also increases? Also, we have insulated flex ductwork. Can flex ductwork "oil can"?
  4. Replies
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    407

    Pounding Sound - Furnace Stage Change

    I am using a Honeywell VisionPro two stage thermostat with a Carrier two stage natural gas furnace. All equipment is about six years old and is inspected anually. During a normal heat cycle, the...
  5. Replies
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    889

    We have our AC units and furnaces serviced every...

    We have our AC units and furnaces serviced every year before we begin using them for the season, and have been doing this for the past 20 years. It was just serviced yesterday before I posted about...
  6. Replies
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    889

    Update: The thermostat controls the furnace...

    Update: The thermostat controls the furnace stages. The furnace always lights in high stage. During normal cycling, the furnace ignites in high stage, and after a few short seconds goes into low...
  7. Replies
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    Furnace Starts on Second Try

    Carrier Natural Gas Furnace, about 5 years old
    Performance Series
    2-Stage
    90k BTU
    Honeywell Vision Pro 8000 thermostat


    The thermostat calls for heat, the "purge" fan comes on and runs for a...
  8. Replies
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    9,769

    That raywall valve looks like an interesting...

    That raywall valve looks like an interesting product. I'll have to inquire about it.

    I don't remember the numbers, but the technician did say there was a static pressure issue because the duct...
  9. Replies
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    9,769

    Any recommendations for a quality, quiet...

    Any recommendations for a quality, quiet dehumidifier? And where is the best place in the house to set one?
  10. Replies
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    9,769

    The current 5 ton unit is a Carrier Performance...

    The current 5 ton unit is a Carrier Performance series 13 SEER, and the load calc shows that the duct work is sized for up to a 4 ton unit.

    Here's the part that is hard to swallow and makes the...
  11. Replies
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    9,769

    Power Consumption - 3.5 ton vs 5 ton

    We currently have a 5 ton Carrier AC unit for the 2,200 sq ft first floor of our house in Oklahoma. I have always thought it was oversized as the humidity inside the house during the summer months...
  12. Replies
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    1,017

    The furnace is actually an 80% model, and for...

    The furnace is actually an 80% model, and for that, Honeywell recommends the 5 CPH setting. The first floor of the house, which the larger furnace heats, is about 2300 sq. ft. I sense from...
  13. Replies
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    I live in NE Oklahoma. We usually have...

    I live in NE Oklahoma. We usually have reasonable winters, but the next few days the temperatures are going to be in the teens and twenties.

    My thermostat has individual CPH settings for each...
  14. Replies
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    Thanks for the information and advice. I'll...

    Thanks for the information and advice. I'll change the thermostat back to 2 Stage heat / 1 Stage cool, which matches my systems. We're going to get hit with a cold front blast starting today, so...
  15. Replies
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    1,017

    They look like they are wired correctly, per the...

    They look like they are wired correctly, per the manuals. What else could be incorrectly set up?
  16. Replies
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    Vision Pro TH8320 Operation

    I have two heat/cool systems consiting of the following:

    Downstairs System
    Carrier Performance 58CTA135 2 Stage Natural Gas Furnace
    Carrier Performance 38TXA060 Air Conditioner
    Honeywell Vision...
  17. Replies
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    2,648

    Regarding 2 stage heating, approximately what...

    Regarding 2 stage heating, approximately what percentage of full btuh output does stage one heating provide? ie, 40%, 50%, 60%, etc.
  18. Thread: Stages of Heating

    by red
    Replies
    19
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    1,904

    I have never seen Heat 1 or Heat 2 displayed. ...

    I have never seen Heat 1 or Heat 2 displayed. When my theromostat calls for heat, the display shows "Heat On". Does that mean it's not wired for 2 stage heating?
  19. Thread: Stages of Heating

    by red
    Replies
    19
    Views
    1,904

    How can I tell when or if my 2-stage furnace is...

    How can I tell when or if my 2-stage furnace is running in stage 1 (low)? I have a Carrier Performance 58CTA135 2-stage furnace and a Honeywell VisionPro TH8320 thermostat. I don't know that I have...
  20. Replies
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    2,525

    This is actually new construction. We have not...

    This is actually new construction. We have not yet moved in. I'm just trying to educate myself on air movement and wondering how I should set the upstairs thermostat vs the downstairs.

    Our...
  21. Replies
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    2,525

    Thanks for the information. The game room has...

    Thanks for the information. The game room has bat insulation below its floor and around the walls, and there is blown-in insulation on top of the room. When we're not planning to use the room for a...
  22. Replies
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    2,525

    I have a theoretical question. Facts: 2,600...

    I have a theoretical question.

    Facts: 2,600 sq ft house in NE Oklahoma (2,300 down, 300 upstairs game room), two separate heating and cooling units, the upstairs is connected to downstairs via...
  23. Thread: Gas Pressure

    by red
    Replies
    7
    Views
    1,014

    I'm sorry if I mislead anyone. I've been using...

    I'm sorry if I mislead anyone. I've been using the same HVAC company for 20 years. However, that service history covers three different houses. My current furnaces are only four years old and were...
  24. Thread: Gas Pressure

    by red
    Replies
    7
    Views
    1,014

    Two weeks ago a technician came to our house (in...

    Two weeks ago a technician came to our house (in Broken Arrow, Oklahoma) for our semi-annual "Energy Savings Agreement" service call. I have been very satisfied using this same company for over 20...
  25. Replies
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    1,761

    I disagree with the direction of air from the...

    I disagree with the direction of air from the ceiling fans for summer and winter use. You want the air to blow directly on you in the summer, but not in the winter. The following paragraph...
  26. Thread: Load Calc Errors

    by red
    Replies
    3
    Views
    716

    Thanks for the advice. I have a call into my...

    Thanks for the advice. I have a call into my contractor.

    In the meantime, let me alter my question a bit. What kind of problems would a homeowner encounter, if any, if a 5 ton a/c unit was...
  27. Thread: Load Calc Errors

    by red
    Replies
    3
    Views
    716

    Unless someone wants specific values, I'll try to...

    Unless someone wants specific values, I'll try to keep this as simple as possible. I received a copy of the Heat Load Calculation for the house I'm having built. Here are the facts.

    New...
  28. Thread: Open or Closed

    by red
    Replies
    2
    Views
    644

    We are getting ready to have a house built that...

    We are getting ready to have a house built that will have 1 1/2 levels. There will be approximately 2,000 sq. ft. downstairs and 800 sq. ft. upstairs. There will be two air conditioners and two...
Results 1 to 28 of 28
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