Air Handler
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Thread: Air Handler

  1. #1
    Join Date
    Jul 2006
    Posts
    613
    For better or worse, I have a brand new Goodman 2.5 ton 13 SEER HP condensing unit hooked to a 10 SEER airhandler. I'm going to have the airhandler replaced soon. My question to the Pro's is: Variable Speed vrs a Standard AH. I have read on this site that VS has problems with comfort and is basicly credidited with efficiency.

    I was offered a standard AH with a 2.5 ton A coil, a VS AH with a 2.5 ton coil and a VS AH with a 3 Ton coil to match my system.

    I am confused about the 3 ton VS AH compatibilty with my 2.5 ton unit.

    I am a prick when it comes to negative HO type comments. I had the OD unit installed to satisfy an immediate need, it was hot, and I was broke.

    Please, only pro's with valid input reply. No "call a hack.errr contractor, read my previos posts, had several of them) LOL As you know, a lot of hard earned money is spent based on your experience or a hack contractors oppinion.

    Thanks

  2. #2
    Join Date
    May 2006
    Location
    east central indiana
    Posts
    1,117

    My belief is that a VS fan would offer better comfort, in addition to efficiency. This is why the higher-end units of a particular brand are generally variable speed. Airflow is more exactingly controlled by the motor that knows what it needs to do than by a fixed speed motor where what it gives is just what it gives at that set speed. Plus the ability for better humidity control to variate the airflow speed slower.
    Having an oversized fancoil goes hand in hand with this, having a larger evaporator generally does better to dehumidify and raise efficiency also.
    Personally, I would opt for variable speed anytime.

  3. #3
    Join Date
    Jul 2006
    Posts
    613
    41530 stated:
    Having an oversized fancoil goes hand in hand with this, having a larger evaporator generally does better to dehumidify and raise efficiency also.
    Personally, I would opt for variable speed anytime

    Thanks for the reply 41530.

    So is it OK to go with the 3 ton VS AH with my 2.5 ton condensing unit?

    Thanks

  4. #4
    Join Date
    May 2006
    Location
    east central indiana
    Posts
    1,117

    Thumbs up

    ROBO would know the most about this, it's his equipment.

  5. #5
    Join Date
    Jul 2006
    Posts
    613
    UT OHHHHHH

    ROBO? Ya got me there. Is he a poster?

    Thanks

  6. #6
    Join Date
    Nov 2001
    Location
    Port Saint Lucie, FL
    Posts
    1,594
    how long do plan to live in this house?

  7. #7
    Join Date
    Nov 2001
    Location
    Port Saint Lucie, FL
    Posts
    1,594
    If it was me, and I'm a cheap prick too...if only replacing the coil, I would go with the 3 ton rated to the 13 seer condenser. But that's just me.

  8. #8
    Join Date
    Jul 2006
    Posts
    613
    NAWW, I'm going to replace the whole AHU Hawk. I can get the whole AHU either way. I am looking for the (best)correct match up. But I am a cheap bastard..LOL This group has changed my mind on my heating and cooling though..

    Appreciate you real pro's advice!!!!!!!!!!! The slamming from wanna be pro's here just sucks..... You can almost picture the bad tech's here. Their bosses must ***** slap em for poor productivity and they take it out on HO's here..LOL

  9. #9
    Join Date
    Nov 2001
    Location
    Port Saint Lucie, FL
    Posts
    1,594
    you may want to check your other post

  10. #10
    Join Date
    Jul 2006
    Posts
    613
    as requested hawk boy, shut yor yap or contribute your lifelonge advice.....you contribute nothing boy. I repeat, nothing but sarcasim.

  11. #11
    Join Date
    Nov 2001
    Location
    Port Saint Lucie, FL
    Posts
    1,594
    I suspect you won't be around tomorrow, have a nice life and try not to beat the kids too much...PLEASE

  12. #12
    Join Date
    Feb 2006
    Posts
    478
    Originally posted by riderman
    So is it OK to go with the 3 ton VS AH with my 2.5 ton condensing unit?
    Yes. Slightly larger coil will allow for proper superheat and better air conditioning (cooling and dehumidifying).

    VS air handler can be set to vary fan speed according to varying load for better comfort.

  13. #13
    Join Date
    Nov 2001
    Location
    Port Saint Lucie, FL
    Posts
    1,594
    Please don't feed the trolls.

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