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  1. #14
    Join Date
    Jan 2009
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    Fairfield county Connecticuit
    Posts
    778
    VS is the best way to go almost unlimited to what you gan do with them also go for
    R410A

  2. #15
    Join Date
    Nov 2001
    Location
    east kansas
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    8,038
    Quote Originally Posted by RoBoTeq View Post
    On variable speed furnaces, Y and O are jumpered, just like on Trane units.
    So???

    Does Y control ramping profiles or does O?

    You sure dance pretty.

    Can you set ramping profiles with dual fuel equipment, and will those ramping profiles be ignored in heat mode?
    Beware of advice given by some guy on the Internet.

  3. #16
    Join Date
    Jan 2009
    Location
    Fairfield county Connecticuit
    Posts
    778
    y ramps up for ac w for heat

  4. #17
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,770
    If you want to discuss how to set up the ramping profiles.
    Start a thread in the pro tech forum.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  5. #18
    Join Date
    Nov 2001
    Location
    east kansas
    Posts
    8,038
    Quote Originally Posted by Danimal535 View Post
    y ramps up for ac w for heat

    The question pertains to dual fuel applications.

    First stage heat will not give a W call. It gives a Y call.

    If Y controls ramping profiles and profile D is selected for humidity control in cooling, it will not provide the needed cfm for a first stage (Y) call for heating. It will provide 50% of full demand airflow for 1/2 min. Then 82% air flow for 7 1/2 min. In this time it is possible, and probable, for high pressure lock out.
    Beware of advice given by some guy on the Internet.

  6. #19
    Join Date
    Nov 2001
    Location
    east kansas
    Posts
    8,038
    Quote Originally Posted by beenthere View Post
    If you want to discuss how to set up the ramping profiles.
    Start a thread in the pro tech forum.
    Are you talking to me?
    Beware of advice given by some guy on the Internet.

  7. #20
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,770
    To anybody that wants to get indepth in the setting of the profiles, the wiring, and how its controlled.

    Thats technical enough, to merit being in the pro tech forum.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  8. #21
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,981
    Quote Originally Posted by Milk man View Post
    So???

    Does Y control ramping profiles or does O?

    You sure dance pretty.

    Can you set ramping profiles with dual fuel equipment, and will those ramping profiles be ignored in heat mode?
    I have no idea what you are trying to prove here milkdud, but get it through your thick skull; there is no difference in the basic functions of any of the variable speed blowers on the market.

    I have no idea what it is you are getting at or what you don't understand and I have no intentions of getting into another one of your petty little debates in an open forum. Why don't you start another brand bashing thread on a pro forum if you think you know something to support your brand bashing. This is an open forum. Get a clue.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  9. #22
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,981
    Quote Originally Posted by Milk man View Post
    Are you talking to me?
    For crying out loud, you cannot be this dense. How about this; start a thread in the B&M forum

    OH! Sorry bout that! Your not knowing when to shut up did you in there too, didn't it?
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  10. #23
    Join Date
    Nov 2001
    Location
    east kansas
    Posts
    8,038
    Quote Originally Posted by Milk man View Post
    The question pertains to dual fuel applications.

    First stage heat will not give a W call. It gives a Y call.

    If Y controls ramping profiles and profile D is selected for humidity control in cooling, it will not provide the needed cfm for a first stage (Y) call for heating. It will provide 50% of full demand airflow for 1/2 min. Then 82% air flow for 7 1/2 min. In this time it is possible, and probable, for high pressure lock out.
    Hey RoBo, you forgot to quote this one. Or do you just not have an answer that you can spin?

    Is what I said a correct statement?
    Beware of advice given by some guy on the Internet.

  11. #24
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,981
    Quote Originally Posted by Milk man View Post
    Hey RoBo, you forgot to quote this one. Or do you just not have an answer that you can spin?

    Is what I said a correct statement?
    You truly are just not very bright, are you?
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  12. #25
    Join Date
    Nov 2001
    Location
    east kansas
    Posts
    8,038
    Quote Originally Posted by RoBoTeq View Post
    You truly are just not very bright, are you?
    Your just going hurl insults instead of answer the question.

    Give me five minutes and this question will be in the tech forum for you not answer also.
    Beware of advice given by some guy on the Internet.

  13. #26
    Join Date
    Jan 2009
    Posts
    33
    Wow, this thread turned intereting. So it seems that a VS air handler is recomended and a 2 stage compressor is not needed for a VS and probably not needed in my application since i live in VA. Besides getting a model # of the outside unit and air handler what else will help you guys help me make an informed decision. My backup heat is electric as well. The Lennox guy recommened the clean air system for $xxx as well. I think this was like buying underbody protection on a car. Not necessary. Thanks
    Last edited by beenthere; 01-18-2009 at 10:06 PM. Reason: Temoved price.

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