Our HVAC system has a heat pump + variable speed fan gas furnace and there is a A-coil in the supply.
I am having a humidifier (Trane truesteam) installed and there is no space below the A-coil for the outlet from the humidifier that sprays in the warm mist (spray pipe). According to the manual it has to be below the coil. There is space above the A-coil for the spray pipe. The installer is going to put that pipe above the coil which is not according the manual. No where in the manual it says that the spray pipe cannot be above the coil.
In a way it makes sense to have it above the coil, so if it condenses, the catch pan below the coil would catch the condensation and drain it. Is there any downside to having the humidifier outlet pipe above the A-coil?