Wiring:The iWave-R features a patented common voltage 24VAC to 240VAC input capacity. The black wire (marked ‘AC’ on label) is for 24VAC to 240VAC voltage input. The white wire (marked ‘N’ around the label) is definitely the neutral leg for 24VAC or 120VAC; or the opposite scorching leg for 208/240VAC.Drawbacks: We appreciate the mapping at