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What voltage do cen…

What voltage do central exhaust fans (ULV, USV and USVX) operate on?

Central exhaust fans of type ULV, USV and USVX can operate at different voltage levels depending on the selected speed setting. The fans run at approximately 80 V at low speed, approximately 150 V at medium speed, and 230 V at maximum speed. This is controlled via the regulator and is normal operation for these models.