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What changes in performance can be expected at freezing operating conditions?

April 26, 2017changes Conditions freezing operating PERFORMANCE

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What changes in performance can be expected at freezing operating conditions?

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A drop in soil temperature from 40F to 30F results in a loss of capacity and efficiency of about ten percent. At 30F, latent heat from moisture in the soil freezing adds considerably to the capacity of the system, allowing very successful performance of the systems in northern climates.