Every thing work fine. However I want the Humidifer to work when the fan is manually on and when the unit is calling for heat. The control boad has a "HUM" terminal. This only has 24v when the gas valve is energized. The "G" terminal is energized when the fan is set to manual on except for the "HUM" is energized. Can I jumper between "HUM + G" with out diodes. I cannot tell if the CPU is already protected with diodes internally. Or does it even matter. Thanks,