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  1. #1
    Join Date
    Jan 2007
    NW Washinton
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    Greenspeed challanges

    Anyone in the Carrier contracting world experiencing challenges with retro-fit applications when the Greenspeed heat pump is installed. Zoning and duct systems are our woe's. We have installed about 20-25 so far and we are at about 20% problem rate. Thanks!

  2. #2
    Join Date
    Aug 2006
    Panama City, FL
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    Best results seem to be with 5+ zones. Duct sizing is very important also. You can't get away with much, due to the self configuration and static pressure test. The only legitimate system problem is with poor power quality. Early inverters seem have very tight tolerances for voltage. I like them.
    You can't learn a thing with your mouth open.

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