Aprilaire Model 700 Maintenance
I have installed the aprilaire model 700 filter home depot a few months ago. It is working properly having a couple of adjustments. I produced the connection for automatic setting (with a exterior temperature sensor). When I received the humidifier I notice the "NEW Enhanced WIRING DIAGRAM" (see picture). In the event you adhere to the wiring diagram, the humidifier will begin operating when there's a contact for heat (connection "G"). The is a issue brought on by the following: (1) my furnace fan wait for 1 minute -after the heat call- to start running. But, the humidifier is currently on and is blowing humidity into the method. (2) My basement is unfinished, and also the humidity inside the returning duct goes down rather significantly (e.g. if the house's relative humidity (RH) is 40%, the returning duct may be 30%), yet once the furnace fan start operating the RH stabilizes in the RH from the house. These two aspect may produce a really short run from the humidifier. I study all of the critiques, and one solution would be to wire into the furnace manage card. I discovered this rather difficult simply because I couldn't find the furnace' card (it's a Lennox) specifications. So, the solution I found would be to install a DELAY ON MAKE (Timer with .03-10 minute adjustable delay and 6" wire leads, universal 18-240 VAC: you are able to get this timer in Amazon as well to get a $15 aprox.) to set up in between the humidistat outputs (the second "H" connection) and one of the solenoid line (see image and modified wiring diagram). I adjusted the time for you to 3 minutes, so the RH inside the duct system can stabilize prior to calling for humidity. Since then, the humidifier doesn't blow air in to the system when the furnace fan is not operating, as well as wait lengthy enough to permit the RH inside the duct to stabilize.














