How do i operate truesteam – Honeywell TRUESTEAM 69-2286EFS-03 User Manual
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Once TrueSTEAM is installed and running, operation is automatic. Use the humidity control provided to make any 
changes to the setpoint, or to turn TrueSTEAM on or off.
Your Professional Installer configured TrueSTEAM so that it only creates steam when conditions in your HVAC 
system are right. Steam can only be produced when your system fan is blowing air through the duct.
Be sure to read the manual that came with your humidity control. Ask your Professional Installer if you have 
questions about how to operate TrueSTEAM.
How do i use the humidity control?
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Whenever humidity in the home is lower than the humidity control’s
setpoint, the control will call for humidity. Some controls will also monitor outdoor conditions to ensure indoor 
humidity does not condense on windows and walls. Refer to the manual provided with your humidity control 
for instructions on setting the control. There are two different types of humidity control:
How do I operate TrueSTEAM?
TrueSTEAM Humidification System 69-2286EFS—03
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thermostat with integrated humidity
control (such as Visionpro iaQ or 
redlinK prestige).
This arrangement allows you to control 
your furnace, central air conditioning, and 
TrueSTEAM, all with one device.
Humidity control separate from the 
thermostat (such as the H8908 or trueiaQ).
With this arrangement, you will use your current 
thermostat to control your furnace and central 
air conditioning. Use the separate humidity 
control to control your TrueSTEAM.