How Does The Steam Humidifier Work - Honeywell HM609 Operating Manual

How does the Steam Humidifier work?

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1. The Steam Humidifier is controlled by the provided
humidity control or by your home's thermostat
if humidity control is a feature and it is wired
appropriately. The humidity control is connected
to the Steam Humidifier, either with wires or by
wireless connection.
2. The heating element coil heats water in the tank to
the boiling point.
3. The resulting steam flows out of the Steam
Humidifier into the hot air supply duct of your HVAC
system. If remote mounting is used, the steam
flows through an insulated steam hose from the
Steam Humidifier to your supply duct.
4. Air flow from your furnace fan carries the moisture
throughout your home. Your furnace may or
may not be heating the air, depending on your
thermostat setting and the Steam Humidifier
configuration.
5. When humidity in your home reaches the setpoint,
the humidity call ends and the Steam Humidifier
stops producing steam. The furnace fan will
continue to run until humidity in the duct is
completely distributed to your home.
6. Sensors monitor water level in the tank. The built-in
solenoid valve opens and closes to automatically
refill the tank, as needed. During long periods of
inactivity, the tank will drain completely to prevent
water stagnating. The tank will automatically refill
when there is demand for humidity.
Steam Humidification System 69-2286EF—07