How does the Armstrong minimum flow bypass operation work?
The new Armstrong Gen-5 pumps with integrated VFD has a programmable feature that can control a bypass control valve for minimum flow. What makes it even cooler is that this control is a modulating output - varying the amount bypassed based upon how low the flow is. Below is a quick explanation from the installation manual on how the bypass valve function works.
How Armstrong Gen-5 Pump Bypass Valve Control Works
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