NV C-37 Solar Practice Questions - Nevada C-37 Solar Contractor Examination Exam

A typical FSEC differential controller starts the C-37 collector pump at about which on/off pair?

On at 2°F, off at 1°F On at 8–20°F ΔT (collector minus tank), off at about 3–8°F ΔT On at 80°F ΔT, off at 60°F ΔT The pump runs 24 hours with no differential

Correct Answer:

On at 8–20°F ΔT (collector minus tank), off at about 3–8°F ΔT

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