Rheem RXIH-AB12A, RXIH-AB17A Owner's Manual

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RXIH-AB12A and
RXIH-AB17A By-Pass
Flow-Through Humidifiers

with Antimicrobial

OWNER’S GUIDE

69-2297-01

RXIH-AB12A AND RXIH-AB17A BY-PASS FLOW-THROUGH HUMIDIFIERS

IMPORTANT

Please read these instructions and keep them in your records.

OPERATING YOUR HUMIDIFIER

Humidifiers are controlled by the Convertible
Humidity Control. The convertible humidity control is
installed either on an interior wall in the living area,
or on the return air duct. Choose the humidity
control setting using the combination relative
humidity/outdoor temperature setting scale on your
humidity control dial. Match the dial setting to the
outdoor temperature for optimizing the humidity
level while reducing moisture condensation on your
windows. The table below can also be used to
adjust humidity control to the recommended setting.

M29011

At Outside

Temperature

-20°F (-29°C) 15 +10°F (-12°C) 30

-10°F (-23°C) 20 +20°F (-7°C) 35

0°F (-18°C) 25 Above 20°F (-7°C) 40

NOTE: As outside temperature drops, the recommended humidity control setting is

lowered to adjust for effects of dewpoint. These settings should reduce accu­mulation of moisture and ice on your windows and 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.

Recommended
Control Setting

At Outside

Temperature

Recommended
Control Setting

HOW YOUR HUMIDIFIER WORKS

Your 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 dispenses water evenly over the
antimicrobial humidifier pad. The warm dry air, from the furnace, passes over the
humidifier pad and picks up the moist air to circulate it throughout your home.

69-2297—01 2

RXIH-AB12A AND RXIH-AB17A BY-PASS FLOW-THROUGH HUMIDIFIERS

WARNING

A

Humidified air feels warmer and more comfortable so you may be able to lower your
thermostat heating setpoint, which saves money on your heating fuel bills. The end
result is that your humidifier gives you a cleaner, more comfortable environment that is
also energy efficient.

MAINTAINING YOUR HUMIDIFIER

A regular maintenance program prolongs the life of your humidifier and provides a
more comfortable home. Frequency of cleaning depends 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. For optimum performance,
replace the antimicrobial pad once a year. Use the following procedure to clean your
humidifier.

Serious Personal Injury Hazard.
Can cause electrical shock and injury from moving parts.

Disconnect power and shut off water supply before removing cover.

IMPORTANT:

Never oil any part of
the humidifier.

Every 1 to 3 Months (Depending on Water Quality)

1. Disconnect power and
turn off humidifier water
supply.

2. Remove the humidifier
cover by unplugging the
connector and loosening
the thumb screw. Grasp
the cover near the bottom
and pull toward you.

3. Remove humidifier pad
assembly from humidifier
by grasping top of tray
and pulling it toward you.

4. Lift the tray off the pad.

5. Gently pinch water nozzle

catches inward until you
can lift water nozzle off
tray.

WATER
DISTRIBUTION TRAY

WATER FEED NOZZLE

NTIMICROBIAL

HUMIDIFIER PAD ASSEMBLY

HUMIDIFIER HOUSING

WATER FEED TUBE

SIDEWALL

COVER

BYPASS SIDEWALL

M29012

3 69-2297—01