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  1. Replies
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    1,092

    Chiller Secondary Loop VFD Control

    I have a secondary loop VFD controlled with 10+ 2-way modulating valves and two 3 way valves. The VFD control is currently set to maintain a specific dp. In the winter time, the flow that this loop...
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    8
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    1,143

    North Carolina HVAC Zone Requirements

    I have a split system in my 2 story 1200 ft townhouse in wake county NC. Gas furnace was replaced in late 2010, AC system was left alone (12 year old goodman). I just got a quote for a new AC system...
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