Principle Of Operation - Goodman HUM-SFTBP Owner's Manual

HUM Series Owner's Manual
About Your Humidifier

Principle of Operation

Your Humidifier uses the same method of evaporation you observe in nature after a
summer shower. Mother Nature's technique is simple: warm air passes over a thin layer
of water spread over a large area, causing the water to evaporate and raising the level of
humidity. Your humidifier creates the same natural response with an evaporator pad that
dispenses water evenly in front of a warm air stream.
You'll notice that the evaporator pad has many holes and connecting strands. These
significantly increase the surface from which water can evaporate. This warm air
evaporative process, intensified by the warm air from your furnace, is what makes your
humidifier perform efficiently.
The system is controlled by a humidistat that monitors the relative humidity in your
home, and activates or deactivates the humidifier accordingly. Water evaporated from the
humidifier leaves behind all it impurities (e.g., calcium, iron, lime, bacteria, etc.), thus
creating a purified vapor that doesn't pollute your indoor air. As a result, your home will
be freer from these contaminants.
How Your Humidifier Works
Models HUM-SFTBP & HUMLFTBP. When your home's air is dryer than the selected
level of humidity, the humidistat activates the low-voltage solenoid in your humidifier,
allowing water to flow across the unit's media. Warm, dry air is then forced through the
humidifier cabinet by the furnace blower. As the warm air evaporates the water, the
resulting moist (or humidified) air is circulated throughout your home by the heating
system.
IO-634
3
February 2006