How Your Humidifier Works; Operating Your Humidifier; Maintaining Your Humidifier - Honeywell HE120 Owner's Manual

HE120 BY-PASS DRUM HUMIDIFIER

HOW YOUR HUMIDIFIER WORKS

Your Resideo humidifier uses the principle that vapor (evaporated water) is created when warm air blows over a
water soaked area. As the vapor circulates, the relative humidity rises.
Your humidity control monitors the relative humidity and activates the humidifier accordingly. The humidifier
has a water supply that disburses water evenly over a humidifier pad. The warm dry air from the furnace passes
over the humidifier pad and picks up the moist air to circulate it through your home.
Humidified air feels warmer and more comfortable so you may be able to lower your thermostat heating setpoint
and save money on your heating fuel bills. The end result is that your humidifier gives you a comfortable
environment that is also energy efficient.

OPERATING YOUR HUMIDIFIER

Your HE120 Resideo humidifier is controlled by the Humidity Control that is
installed either on the return air duct or on an interior wall in your living area.
Choose the humidity control setting using the combination relative
humidity/outdoor temperature setting scale on your humidity control. Match the
dial setting to the outdoor temperature for optimizing the humidity level while
reducing the moisture condensation on your windows. The table below can also be
used to adjust the humidity control to the recommended setting.
At Outside
Temperature
-20°F (-29°C)
-10°F (-23°C)
0°F (-18°C)
NOTE: As the outside temperature drops, the recommended humidity control setting is lowered to accommo-
date for the effects of dewpoint. These settings should reduce the accumulation of moisture and ice on
your windows and in other areas of your home.
Some indoor activities such as cooking, showering and clothes drying can cause excessive levels of humidity
and start the accumulation of moisture on your windows.
NOTE: If this condition persists for more than a few hours, set the humidity control to the lowest setting to turn
off the humidifier. If the condition does not improve, ventilate your home to remove the moisture.

MAINTAINING YOUR HUMIDIFIER

A regular maintenance program prolongs the life of your humidifier and provides a more comfortable home. The
frequency of cleaning will depend on the condition of your water.
You can use either hard or soft water in your humidifier, but hard water mineral deposits are more difficult to
clean than soft water deposits.
Cleaning Humidifier
(Every 1 to 3 Months Depending on Water Quality)
CAUTION
Voltage Hazard.
Can cause electrical shock
and equipment damage.
Disconnect power and shut off water supply before installing or servicing.
IMPORTANT
Never oil any part of the humidifier.
Use the following steps to clean your Resideo humidifier:
1. Disconnect the power and turn off the humidifier water supply.
2. Remove the humidifier cover by lifting the bottom of the cover upward.
3. Lift up the drum shaft from the bearing end and slide it out of the motor coupling to remove the drum
assembly. See Fig. 1.
NOTE: You will encounter some resistance when removing the drum shaft until you hear an audible click.
69-1110EF—03
Recommended
Setting Temperature
Low +10°F (-12°C)
Low +20°F (-7°C)
Med Above 20° (-7°C)
At Outside Recommended
2
Setting
Med
High
High
M13608B