This device can be powered with 120V or 208V/240V. In most applications, optimum performance is achieved when connected to 208V/240V. The CCRP is equipped with a factory installed wiring and is configured for 208V/240V. If the CCRP is to be connected to 120V, the transformer tapping MUST be changed. To change the transformer tapping to 120V, move the wire jumper to positions P2 and N in the line voltage connections terminal strip. (See Circuit Board Configuration Diagram for reference to proper placement of the jumper and line voltage field wiring connections.)