Hi everyone, I have an Aprilaire 224 installed cira 1980 and I have a weird problem. First, I have cleaned it thoroughly, made sure it was level, got a new water panel, new solenoid valve, new saddle valve, there are no leaks, it is installed on the cold air return with hot water and as far as I can tell is in perfect working condition. When I check the instruction manual, it says to leave the saddle valve wide open and let the orifice work to regulate the water flow to the proper 6GPH. When I do that, it flows much more, in the neighborhood of 15GPH. If I turn the saddle valve in and get the flow back to the 6GPH, I cannot get the house about 30% RH whether I set the fan to run all of the time or just when the heat kicks on. If I open the saddle valve all the way like it says, then I can get the house only 35% but I'm using so much water - hot water at that. Any ideas what I should do?
A few notes, the water panel was a honeywell but said 224 and it fit so I don't think that matters. The temp out site has been about 30 consistently most days. I did not replace the solenoid with the oem one but the guy said that they both allow full flow and it shouldn't matter as long as you have everything hooked up correctly. Last, the humidifier is controlled by my Nest thermostat and it is the one giving the reading of indoor and outdoor relative humidity.