Norm Hall
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February 18, 2019
ECM Smart Pump technology seems to be the buzz in marketing and sales of hydronic and plumbing products. There is a definite advantage to ECM... READ MORE
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In the last R. L. Deppmann Monday Morning Minutes, we introduced the newest addition to the art of balancing in domestic hot water recirculation systems... READ MORE
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In last week’s R. L. Deppmann Monday Morning Minutes, I reviewed the Bell & Gossett Circuit Setter manual balancing solution and suggested that it is... READ MORE
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The prevention of Legionella growth in plumbing systems is a topic on most of our minds. As a result, plumbing industry standards are paying a... READ MORE
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Balancing HVAC Hydronic Systems Part 5: Pressure Independent Control Valve (PICV)
Norm Hall
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September 10, 2018
Air side terminal units have used pressure independent control valves for a long time. These valves, also called PICV, are still relatively new in hydronics.... READ MORE
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Variable Speed Pump Control & Automatic Balance Valves : Part 4
Norm Hall
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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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Balancing HVAC Hydronic Systems Part 4: Automatic Flow Limiting
Norm Hall
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August 27, 2018
Last week, the R. L. Deppmann Monday Morning Minutes (MMM) showed the advantages and disadvantages of manual balance valves. Today, we continue with automatic balance... READ MORE
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There are some engineers who challenge the use of balancing valves at all in hydronic systems. If the control valve throttles the flow to satisfy... READ MORE
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