Norm Hall
/
May 25, 2020
ASHRAE Energy Standard 90.1 indicates the hydronic system shall have proportional balance and the pump over-heading shall be removed through speed reduction or impeller trimming.... READ MORE
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Variable Speed Pump Control & Automatic Balance Valves : Part 4
Norm Hall
/
September 3, 2018
A few weeks ago in the R. L. Deppmann Monday Morning Minutes (MMM) part 3 of this series, we showed that direct return systems with... READ MORE
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