What is a Differential Control?

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22-Jun-2014 04:58 PM

Al Rich

Posts: 16

A Differential Control turns the 110 Volt pump on when heat is available or when freeze re-circulation is needed and off when no energy is available. To do this it uses two sensors, one in the collector and one at the bottom of the storage tank. The control electronically senses the temperature difference and when the difference is enough, typically 12 degrees F, it turns the pump on and when the difference is within 4 degrees F, it turns the pump off.

Al Rich

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