General HVAC

Quick & Basic Hydronic Control


This short book explains hot water heating (hydronic) controls and circuits from the perspective of power supply, switch and load. The book starts with a simple control circuit and builds to multiple zone circuits. It explains that adding a control panel simplifies a job rather than making it more complex. The book then looks at various panels, building from an aquastat relay to multiple-zone and multiple-purpose panels. This quick and fun book tells you: * How figuring circuits is like watching a bug on a rope * Why thinking in circles is good * How every hydronic control is a power supply, a switch or a load * How limit controls are like a safety committee * How to see the friendly side of control panels


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