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  1. #27
    Join Date
    Jul 2004
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    On the bright side, your builder is using plywood instead of OSB. The millions dollar homes where I live use OSB.

    The long duct runs right against the roof decking is troubling. Not only do you risk lots of nail holes, but dark shingles can reach 170 degrees, with the decking almost at hot. Make sure they don't put the refrigerant lines right against the roof deck.

  2. #28
    Join Date
    May 2005
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    Thread Starter
    There will be 2 units. The downstairs will be serviced by a 3 ton unit. Model number for the air handler is FB4BNF036000AAAA. That air handler will be located in the basement.
    The upstairs will be serived by a 4 ton unit. The model number for that air handler(located in the attic) is FK4DNB006000AAAA.

    As far as I know, the units we are getting are the Carrier Performance 13. (Carrier website states that the SEER is between 13.0 and 14.0). We were told that combining the Performance 13 with the better 3 speed airhandler (FK4DNB006) will give us a SEER of 15 for the upstairs.

    We are not ducting the attic yet - in the near future we hope to finish the attice and will duct the attic at that time. We opted for the 4 ton unit (located in the attic) to handle the future cooling of the attic, as well the 5 rooms on the second floor. We have had one brief meeting with the HVAC contractor - the builder's project manager has been the go between for most of the information we have received...

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