How To Turn On Furnace Humidifier. Of course, tracking outdoor temperatures is a bit of a bother. You set it for the desired humidity level (typically 30 to 45 percent), and when the humidifier reaches that level, the water supply is turned off by the solenoid water valve assembly.
In the fall, turn on the water valve, and set the humidistat to 35%. If it is on the return side, the air would be at room temperature. Remove the screws that hold the humidifier cover onto the furnace.
There isn’t an exact date we can give you because the onset of cold temperatures varies from year to year.
Turn the power to the furnace room off at the main circuit breaker. You set a thermostat for a specific temperature, and when that temperature is reached, the furnace turns off. When should you stop using a humidifier?
For humidifying your entire home, turn to a furnace/hvac humidifier.
Lift the supply tube to your humidifier from the top of the distribution box slightly, can you see water coming out of it? Set to [off] or  set bypass damper (if equipped). You may see the works open/closed, summer/winter, or it may not be labeled at all.
The only models i could find are the furnace:
A humidistat works on a similar principle: Once you’re convinced that you should install a humidifier to your existing furnace, you may wonder how it should be done. Turn your furnace thermostat to heat and turn up to call for heat on the furnace.
There are a lot of well being causes to have a furnace and humidifier work collectively to enhance your consolation at house.
Wait 30 minutes for it to cool down; If it is on the return side, the air would be at room temperature. I assume there is a humidifier b/c best i can tell the furnace has a water line going into it.
Our home comfort experts can help you determine the best possible setting for your humidifier to enjoy comfortable humidity levels all winter long.
If you have a cascade type unit, turn off the water supply and turn the humidistat to off in the spring. Then, slowly turn the dial clockwise until you hear the solenoid valve on the humidifier “click on.”. You can either turn your humidistat to the ‘off’ position or close the damper/valve on the waterline if you have one.