Hi - I've got a Honeywell IAQ thermostat, AMV9 furnace, ASX14 AC & Aprilaire 600 humidifier. Basically, I want the house to be humidified to the percent I have set on the thermostat unless I've lowered the "frost protection" setting below 10. My install company says I can't do this with the IAQ and if I want my house at a set humidity percent all the time, they would need to remove the Aprilaire from the IAQ and I would have to use a manual dial in the basement.
They've also told me the Aprilaire only runs when the furnace is on a heat cycle, and it won't run when just the fan is on.
Is this info accurate?