Generalaire products are not very DIY friendly. In the rare event someone has a similar problem I'm posting this. The diagram is for your model humidifier and humidistat. The hard part for a DIY'er is finding the right terminals on the furnace board. Since you posted the wiring diagram for the board someone more knowledgeable than me could figure it out in two minutes.

Generalaire products are not very DIY friendly. In the rare event someone has a similar problem I'm posting this. The diagram is for your model humidifier and humidistat. The hard part for a DIY'er is finding the right terminals on the furnace board. Since you posted the wiring diagram for the board someone more knowledgeable than me could figure it out in two minutes and determine which terminals to use on the board.