Question about Carrier 38BRC060 Air Conditioner

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Carrier furnace I just had a carrier furnace installed in October of 2008. I have 4 zones in my home. Three zones are set at 68 degrees and zone 4 (the basement) is set at 62 degrees until 4pm then it gets changed to 66 degrees. When this happens it takes forever for the basement to reach 66 and the other 3 zones will heat to around 71 on the main floor (zones 1 and 2) and 72-74 on the second story (zone 3). If I turn the setting down in zone 4 after a couple of hours then the furnace will finally shut off. I have had the installers here 2 or 3 times and they can not figure it out. During the day before 4pm everything seems to work fine. Anyone have the same problem or can help me out?

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  • Kent Guidry
    Kent Guidry May 11, 2010

    Do you know if you have the proper duct size for your basement?

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I'm not a fan of zoning but it sounds like they don't have the ducting done correctly. There has to be bleeder trunks installed in the unit because your are taking a unit that is designed to cool or heat a particular square footage and make it cool or heat a smaller area. This makes the unit way too big for the job you are asking it to do. If the ducting is improper, you are going to have issues like this. A lot of contractors will not admit that the ducting isn't correct due to the cost to correct it. I personally think (my opinion) that 4 zones are a little excessive. Sounds like you really need 2 units. It's hard to tell from my point of view since I'm not there to actually see what is going on. I would have a couple of different contractors come out and give you an estimate to fix the issue and then tell the installer to come and fix what they say is wrong.

Posted on Mar 16, 2009

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