Making the Switch to Variable Speed Area Control with DP Sensor(s)
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What is the one piece of hardware in a hydronic system that distinguishes Variable Speed Curve Control from Variable Speed Area Control?...
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Variable Speed Pump Control: Area Control Versus Curve Control
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In our last blog, we left you with two new terms, “Control Curve” and “Control Area,” indicating that any variable speed control strategy will be based on one or the other. What are these strategies and how do they differ? Before we pull out the curves, schematics and calculations, let’s start with a simple analogy...
Read MoreHydronic Balancing Part 11: Variable Flow Pumping
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Throughout our Hydronic Balancing Series, we’ve been slowly and meticulously making our way to the more complex control systems that we see today. We walked you through the steps of proportionate balancing a simple 3-zone system and taught you how to trim an impeller in accordance with ASHRAE 90.1. Today, we’re going to see what happens when we add variable speed drives to the system.
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