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  1. Aprilaire 400.

    Aprilaire 400.
  2. While you listed yourself as a tech in your...

    While you listed yourself as a tech in your profile. This question seems somewhat basic for a tech. So I am reluctant to move it to another forum.
  3. Why aren't you calling the installing company...

    Why aren't you calling the installing company that sold you the Asure warranty.
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    Sorry, prices aren't allowed here.

    Sorry, prices aren't allowed here.
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    Still lots of Plain Jane thermostats, furnace and...

    Still lots of Plain Jane thermostats, furnace and A/C control boards. That no computer skills are needed.
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    When I replace a conventional 80% efficient gas...

    When I replace a conventional 80% efficient gas boiler with a 92% plus efficient mod/con with outdoor reset. The customer usually gets a 25 to 30% reduction in there heating bill.
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    What thermostat is connected to it.

    What thermostat is connected to it.
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    242

    Surging appliances by turning the breaker on and...

    Surging appliances by turning the breaker on and off is not good for them.
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    Perhaps he isn't a person that likes computers.

    Perhaps he isn't a person that likes computers.
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    462

    There is a demand for HVAC/R techs in Florida....

    There is a demand for HVAC/R techs in Florida. Whether or not he will be able to find a good paying job just starting out, is the question. Besides the school, he'll need some expeience too, so he...
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    What is the model number of the indoor coil.

    What is the model number of the indoor coil.
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    Or, it may be because the new unit is running in...

    Or, it may be because the new unit is running in first stage, and the air exchange in the dining room isn't as great as it was with the old unit.
  13. I believe you'll find the .5" static is the...

    I believe you'll find the .5" static is the static it was rated at(efficiency/AFUE). Not the max allowable static. A 5 ton A/C coil wet will often be .38" PD or more. Add .06 for the supply and...
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    So you use see through fiberglass air filters. So...

    So you use see through fiberglass air filters. So its not an air filter type problem in that case.

    Might still want to remove the air filter and see if you get better air flow.
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    That would depend on how well the system was...

    That would depend on how well the system was sized. Often, a unit is just slightly larger then needed becuse the next size down was too small. So teh A/C cycles some even at design.
  16. Many contractors don't know how. Even though they...

    Many contractors don't know how. Even though they should know.

    I believe there is a section, just not sure which section.

    Many of the ASHRAE standards are on line. So you may be able to do a...
  17. Thread: 1/4' pipe

    by beenthere
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    573

    Clean indoor coil, and increase blower speed. And...

    Clean indoor coil, and increase blower speed. And then post all the readings we asked for.
  18. Its probably not the RV itself that is causing...

    Its probably not the RV itself that is causing the problem. But a control issue.
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    What kind/type of air filter are you using.

    What kind/type of air filter are you using.
  20. Don't know your codes to be able to give you a...

    Don't know your codes to be able to give you a good answer.

    But, if you have the static tested, to show that it is out of the furnaces rating, that should be a code violation.
  21. Might want to have the static pressure the blower...

    Might want to have the static pressure the blower is working against checked before you even think about doing that. As your wife won't be real happy if your registers and grilles start to make a lot...
  22. Those CFM numbers show your return duct is okay...

    Those CFM numbers show your return duct is okay for a 4 ton A/C. Also looks like your supply duct for the first floor is under sized, as it isn't able to move as much air as the second floor unit....
  23. Thread: 1/4' pipe

    by beenthere
    Replies
    14
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    573

    SH, SC, Indoor temp delta, outdoor coil temp...

    SH, SC, Indoor temp delta, outdoor coil temp delta?

    Indoor unit size, outdoor unit size?
  24. The larger registers will make it feel like less...

    The larger registers will make it feel like less air flow, when it could be more air flow. Just the larger registers won't have as much throw with the same amount of air flow.
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    Now measure your subcool. It will be high. Your...

    Now measure your subcool. It will be high. Your amp draw on your compressor is a bit higher then it would normally be also. It will cool though.
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