The humidifier bypass model is installed directly onto the Supply (hot) or Return (cool) air duct of your HVAC system.
Air flows through the humidifier pad in the humidifier into the duct for distribution throughout your home.
The humidifier fan model is commonly installed directly onto the Supply (hot) air duct of your HVAC system. The
humidifier’s fan draws air through the humidifier pad in the humidifier and back into the duct for distribution throughout
your home.
The fan model can be installed on the Return (cool) air duct if the location permits. If a return-side installation is used, it
is highly recommended to plumb warm water since humidity is produced by evaporation.
What humidifier parts do I need to know?
Your humidifier installation includes the following parts and components that you should be familiar with:
A. Water Connection with Shutoff Valve
Provides the connection from your home water supply to the humidifier. Your installer may have used the saddle valve that
came with the humidifier or may have chosen a different type of connection. This connection must include a a a shutoff
valve for you to turn off the water supply to the humidifier, if necessary.
B. Water Supply Line
This 1/4-inch line brings water to the humidifier from the water connection. Your installer may have used a plastic or copper
supply line.
C. Water Drain Line
This 1/2-inch hose drains water from the humidifier to a drain in your home.
D. LEDs (HE150/HE250/HE300 only)
The three lights indicate the humidifier’s operational status and when service is required. See “Humidifier lights and button”
on page 10.
E. RESET Button (HE150/HE250/HE300 only)
The RESET button is the only user button located on the humidifier. Use the RESET button to manually reset the humidifier
when the Change Pad or Service LEDs are on. See “Humidifier lights
and button” on page 10.
Power
The Fan model is plugged into a 120 volt AC household electrical outlet. Unplug the power cord to turn off the power.
The Bypass models are wired to a 15VA transformer. To turn off power to these models, trip the circuit to the junction box the transformer is connected to.