Wiring:The iWave-R provides a patented common voltage 24VAC to 240VAC enter capacity. The black wire (marked ‘AC’ on label) is for 24VAC to 240VAC voltage input. The white wire (marked ‘N’ to the label) will be the neutral leg for 24VAC or 120VAC; or the opposite very hot leg https://donorprospectresearchsoftware.com/