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 enter. The white wire (marked ‘N’ within the label) could be the neutral leg for 24VAC or 120VAC; or one other warm leg for https://cruzzsizo.total-blog.com/facts-about-npo-authority-revealed-42847615