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  1. Replies
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    Then you’ll still use 2 air handlers.

    Then you’ll still use 2 air handlers.
  2. Doubt they would heck for the use of a different...

    Doubt they would heck for the use of a different refrigerant.
  3. Perfectly sized ducts in residential, are very...

    Perfectly sized ducts in residential, are very few and very far between.

    Probably most of your supplies are 6".
  4. That's not a resister. Its a thermal fuse. To...

    That's not a resister. Its a thermal fuse. To protect from over heating and starting a fire.
  5. Replies
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    Rotate them, and then repost them.

    Rotate them, and then repost them.
  6. Replies
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    Removed first Pic.

    Removed first Pic.
  7. Replies
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    Will you still have central cooling?

    Will you still have central cooling?
  8. When was this system installed.

    When was this system installed.
  9. Replies
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    353

    Sorry, this is not a DIY site. Thread closed.

    Sorry, this is not a DIY site.

    Thread closed.
  10. Replies
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    10,387

    Sorry, Email addresses are not allowed in post....

    Sorry, Email addresses are not allowed in post. Please put it in your profile. Thank you.
  11. Poor return design can cause the pressure to be...

    Poor return design can cause the pressure to be high in heating mode. But unless its going above factory test pressure, its not going to cause a leak problem.
  12. Replies
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    915

    flex or metal would be around 700 CFM.

    flex or metal would be around 700 CFM.
  13. Replies
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    915

    1000CFM in a 12" is about 1250 FPM.

    1000CFM in a 12" is about 1250 FPM.
  14. Replies
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    337

    Sorry, this is not a DIY site. Thread closed.

    Sorry, this is not a DIY site.

    Thread closed.
  15. Sorry, this is not a DIY site. Thread closed.

    Sorry, this is not a DIY site.

    Thread closed.
  16. Some mismatched systems may have a charge problem...

    Some mismatched systems may have a charge problem season to season. Those are far and few between. I'd say you either have a leak, or the charge was never right to begin with. And the tech that was...
  17. Replies
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    915

    So what did the salesmen say.

    So what did the salesmen say.
  18. Moved to AOP.

    Moved to AOP.
  19. Replies
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    413

    Might want to see what he head pressure is doing.

    Might want to see what he head pressure is doing.
  20. Replies
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    291

    A pressure switch can open and reclose quick...

    A pressure switch can open and reclose quick enough that the gas valve closes. But you don't get a pressure switch error.
  21. Replies
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    Seems like a good bit of DIY aid is being given...

    Seems like a good bit of DIY aid is being given out in this thread. Along with how to vids.

    Sorry, this is not a DIY site.

    Thread closed.
  22. Replies
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    You have a parts only warranty. The installing...

    You have a parts only warranty. The installing contractor provides the labor warranty. And in this case, your the installing contractor.

    Sorry, we're not a DIY site.

    Thread closed.
  23. Replies
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    224

    Sounds like you did. Sorry, this is not a DIY...

    Sounds like you did.

    Sorry, this is not a DIY site.

    Thread closed.
  24. Replies
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    915

    20' of 12" with 2-90s. When you include the...

    20' of 12" with 2-90s. When you include the transition to round at the plenum. Will most likely be close to 100' of TEL.
  25. Replies
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    Then the one set to 40 will do all the work. ...

    Then the one set to 40 will do all the work.

    Set one 2 degrees lower than the other.
  26. Set back during the day while your at work. 1...

    Set back during the day while your at work. 1 degree for every hour your at work.

    Set back at night while in bed. 1 degree for every hour your asleep/or trying to sleep.
  27. Navien. A much better boiler then what you...

    Navien. A much better boiler then what you have/had. So is Rannai.
  28. Replies
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    Moved to AOP. Neither prices nor links to...

    Moved to AOP.

    Neither prices nor links to direct purchase sites are permitted in the open forums.
  29. Bet the boiler water temp is set too low.

    Bet the boiler water temp is set too low.
  30. Replies
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    Lots of heat pump compressors re changed out in...

    Lots of heat pump compressors re changed out in the winter. And you have to recharge the system.

    Then there are the commercial and industrial applications that use A/C 365.
  31. Replies
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    Moved to AOP.

    Moved to AOP.
  32. Boiler probably isn't set up right. It should...

    Boiler probably isn't set up right. It should provide hot enough water that the air temp from the air handler doesn't get cold/cool when it gets colder outside.
  33. Replies
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    And the thread was only started 5 year ago.

    And the thread was only started 5 year ago.
  34. Pic of boiler label not sharp enough to read...

    Pic of boiler label not sharp enough to read model number. How many BTUs is it. And what water temp is it set to reach? Is it using outdoor reset?
  35. Replies
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    The temp drops a little, just the thermostat is...

    The temp drops a little, just the thermostat is programed not to show it. It keeps the temp with in 1 degree of set temp.
  36. Replies
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    Sorry, this is not a DIY site. Thread closed.

    Sorry, this is not a DIY site.

    Thread closed.
  37. Replies
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    Sorry, this is not a DIY site. Thread closed.

    Sorry, this is not a DIY site.

    Thread closed.
  38. Your welcome.

    Your welcome.
  39. Could easily have enough charge to operate when...

    Could easily have enough charge to operate when its in the 49s, but lock out on low pressure when its in the 30s. Could have sprung a leak later in the summer that didn't hurt performance enough for...
  40. Replies
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    Much easier and quicker to use the original...

    Much easier and quicker to use the original plenums, then make up new ones and install them.
  41. Thread: Cad Ohms

    by beenthere
    Replies
    25
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    705

    Fuel, air/oxygen, source of ignition. Thats all...

    Fuel, air/oxygen, source of ignition. Thats all that is required for combustion. But sometimes getting those three in the right quantity is a problem.

    Is the oil tank inside or outside?
  42. Could be low on charge, which would also explain...

    Could be low on charge, which would also explain why the aux heat is coming on when its 40 or warmer outside.
  43. A simplified example of 3 CPH. Would be on for 10...

    A simplified example of 3 CPH. Would be on for 10 minutes, off for 10 minutes, on for 10 minutes, off for 10 minutes, on for 10 minutes, off for 10 minutes. With the set temp having been reached each...
  44. Replies
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    Sorry, this is not a DIY site. Thread closed.

    Sorry, this is not a DIY site.

    Thread closed.
  45. No, but in the winter position it can. Might be...

    No, but in the winter position it can. Might be okay to set Stat to 55 then.
  46. Thread: Cad Ohms

    by beenthere
    Replies
    25
    Views
    705

    Make sure the cad cell is aligned properly.

    Make sure the cad cell is aligned properly.
  47. Replies
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    It is more labor. Saying it isn't. Is like...

    It is more labor.

    Saying it isn't. Is like saying since the break pads of a car are being changed anyway, replacing the break rotors isn't anymore labor. But it is.

    We aren't allowed to discuss...
  48. How long does it stay off? Using a swing...

    How long does it stay off?

    Using a swing thermostat, it might lower the humidity better while its running. But being off so much longer, it might climb back just as high before the AC runs again....
  49. The cold return air temp causes the flue gasses...

    The cold return air temp causes the flue gasses to condense in the primary heat exchanger. Which causes corrosion in it. Doesn't matter if once a week the furnace is ran till the home temp is above...
  50. Replies
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    No. Sorry, this is not a DIY site. Thread...

    No.

    Sorry, this is not a DIY site.

    Thread closed.
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